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4140 Vs 4340
1 Products availableWe offer a complete product range of High Strength Alloy Steel, Rotor Steel Shaft, 4140 4340 Steel Alloy Round Bars, AISI Chrome Molybdenum Alloy Steel and High Toughness Alloy Steel
1.Surface Treatment
Plate: Origin Black, Orign cold rolled bright, Machined, Grinded
Bar: Origin Black, Orign cold rolled(drawn) bright, Turned, Peeled, Grinded
2.Heat treatment specification:Quenching at 850, oil cooling; tempering at 600, water cooling, oil coolingBrinell hardness GBW of annealed or high-temperature tempered steel is less than or equal to 269;
3.
*Delivery Condition: Hot rolled or Forged / Black or Bright /Annealed or Q+T*Technique:Cold or Hot Rolled / Cold Drawn or Hot Forged*Heat Treatment:Annealed or Q+T*Steel Making Process:EAF+LF+VD
*Test:SGS/UT100% / Elements Testing
4.Video Description
https://steelpurchase.com/steel-video/
We provide high-quality steel, ex-factory price, support customization, strong company and factory strength; welcome your inquiry and orderplease contact us for quotes.
MiKi Zhuo
E-mail:jacklu@songshunsteel.com
Skype/Whatsapp/Wechat:+86-18269260283
Company website:
https://steelpurchase.com/
http://www.songshunsteel.com/
songshunmoldsteel41404340
Additional Information:
Payment Terms : L/C, D/A, D/P, T/T, Western Union,
Packaging Details : 1. Standard export package
2. In bundles with steel strips
3. Meet requirements of customers
Delivery Time : 7-25 days
It is used as important quenched and tempered parts that require good toughness, high strength and large size, such as heavy machinery and high-load shafts, turbine shafts with a diameter greater than 250mm, helicopter rotor shafts, turbojet engine turbine shafts, blades, high Loaded transmission parts, crankshaft fasteners. Gears, etc.; can also be used for rotor shafts and blades whose operating temperature exceeds 400 C; can also be used to manufacture important parts with special performance requirements after nitriding treatment, and can be used for ultra-high temperature after low temperature tempering or austempering. Use of strength steel;
We provide high-quality steel, ex-factory price, support customization, strong company and factory strength; welcome your inquiry and orderplease contact us for quotes.
MiKi Zhuo
E-mail:jacklu@songshunsteel.com
Skype/Whatsapp/Wechat:+86-18269260283
ADD:No.4 Dongda Street, Shatou, Changan Town, Dongguan City, Guangdong Province, P.R.C China
For more 4340 steel product information, please click this link:
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Company website:
https://steelpurchase.com/
http://www.songshunsteel.com/
songshunmoldsteel41404340
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Payment Terms : L/C, D/A, D/P, T/T, Western Union,
Packaging Details : 1.Normally Neutral packaging inside and Wooden cases for outer packing.
2.According to requirement from customers.
Delivery Time : 7-20 days
4140 vs 4340 Steel Features
(1) 4140 steel features
This steel has good strength, good toughness, high hardenability, good workability, small processing deformation, quite good fatigue resistance, small deformation during quenching, and high creep strength and durable strength at high temperature.
(2) 4340 steel features
It has high strength, toughness, excellent hardenability and stability against overheating, good plasticity and heat resistance, uniform material, high working reliability, weldability, non-leakage, and simple steel structure production. Short construction period and good assembly;
4140 vs 4340
We specialize in 4140 and 4340 steels, which are versatile and have many advantages for a variety of industrial applications. Knowing the differences between them will help you choose the one that best suits your needs.
Our advantages: Focus on the steel industry for more than ten years, strong factories, professional services, ensure quality, customize according to customer requirements, factory prices, fast transportation,
Good after-sales service, pleasant cooperation, high repurchase rate and so on.
We offer a wide range of information and high quality steel products on 4140 and 4340 steel, for more information on our 4140 and 4340 steel products, please contact us today. To discuss pricing details, please request a quote.
songshunmoldsteel41404340
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Payment Terms : L/C, D/A, D/P, T/T, Western Union,
Packaging Details : 1. Standard export package
2. In bundles with steel strips
3. Meet requirements of customers
Delivery Time : 7-20 days
Dear friends,
Have a nice day.
This is the steel of Dongguan Songshun Die Steel Co., Ltd. Focus on various steels for more than 20 years, produce and sell a large number of 4340 and 4140 steel round bars each year, about 10, 000 tons of hot rolled or forged round steel stocks, and can be delivered quickly. Q+T, annealing heat treatment and machining, peeling, polishing surface can be customized. Our materials are very strict in quality control. Our materials are rigorously inspected before storage and delivery. Therefore, you can be assured of the quality of the product. Our vision is to provide better materials to more businesses.
This steel product is well received by many customers.
It is very popular in the market and we supply it at an exclusive price. What's more, any customization needs will be met. Please contact me for more product pricing information. Welcome to our store to buy more good products! thanks.
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Packaging Details : 1.Seaworthy packing; 20ft: GW:17.5T; (5.80mX2.13mX2.18m, ) 40ft: GW:22T; (11.8mX2.13mX2.18m, )
2.Packaging according to customer requirements
Delivery Time : 8-21 days
AISI 4140 alloy steelround bar sheet plate has high fatigue strength and low notch sensitivity. Low-temperature impact toughness is also very high, no obvious temper brittleness. It is mainly used after quenching and tempering state. It is used to manufacture high-strength parts under impact loads and the fittings with large cross-sections and other stressed members. Such as the horizontal eccentric shaft of the horizontal forging machine, the crankshaft of the forging press, and etc. And the equivalent grade for it is DIN 1.7225 and JIS SCM440. 4140 Steel properties and chemical composition as below.
4340 steel is nickel-chromium-molybdenumalloy steel. It will get high strength after the heat treat. And it has good toughness, fatigue resistance, impact toughness and etc. 4340 steel round bar sheet plate will get high tensile strength, hardness and toughness after heat treatment. It is used widely in the transmission components of heavy chemical machinery. Different sections of each part of the casting which cause the temperature difference stress and phase transformation stress.Its equivalent grade is JIS SNCM439 and DIN 1.6563. The properties and composition of4340 steel round bar sheet plate as below.
For more 4140 vs 4340 steel product information, please click this link:
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Payment Terms : L/C, D/A, D/P, T/T, Western Union,
Packaging Details : 1.Seaworthy packing;
2.Packaging according to customer requirements
Delivery Time : 8-21 days
1.Good Assembly Alloy Steel: In addition to iron and carbon, alloy steel is added with other alloying elements, which is called alloy steel. An iron-carbon alloy formed by adding an appropriate amount of one or more alloying elements on the basis of ordinary carbon steel. According to the difference of added elements and appropriate processing technology, special properties such as high strength, high toughness, wear resistance, corrosion resistance, low temperature resistance, high temperature resistance, and non-magnetic properties can be obtained.
2.The main alloying elements of alloy steel are silicon, manganese, chromium, nickel, molybdenum, tungsten, vanadium, titanium, niobium, zirconium, cobalt, aluminum, copper, boron, rare earth, etc.Among them, vanadium, titanium, niobium, zirconium, etc. are strong carbide forming elements in steel. As long as there is enough carbon, under appropriate conditions, their respective carbides can be formed. When carbon is lacking or under high temperature conditions, atomic The state enters the solid solution; manganese, chromium, tungsten, and molybdenum are carbide forming elements, some of which enter the solid solution in an atomic state, and the other part forms a substitutional alloy cementite; aluminum, copper, nickel, cobalt, silicon, etc. are not formed. Carbide elements generally exist in solid solution in an atomic state.
3.Forging of 4340 alloy steel:
4340 steel is first preheated up to 1150C 1200C for forging until uniform temperature throughout the sectionDo not forge below 850 C, 4340 has good forging characteristics, but care must be taken when cooling as the steel can easily crack. After the forging operation, the workpiece should be cooled as slowly as possible. It is recommended to cool in sand or dry lime etc.
4.We provide high-quality steel, ex-factory price, support customization, strong company and factory strength; welcome your inquiry and orderplease contact us for quotes.
MiKi Zhuo
E-mail:jacklu@songshunsteel.com
Skype/Whatsapp/Wechat:+86-18269260283
For more 4340 steel product information, please click this link:
https://steelpurchase.com/
Company website:
https://steelpurchase.com/
http://www.songshunsteel.com/
songshunmoldsteel41404340
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Packaging Details : Packaging according to customer requirements
Delivery Time : 7-20 days
1.1.6511 Die SteelChemical Composition
C:0.37-0.44 Si:0.17-0.37 S0.035 P:0.035
Mn:0.50-0.80 Cr:0.60-0.90 Mo:0.15-0.25 N:1.25-1.65
2.1.6511 Die SteelCorresponding Steel Number:
China GB steel number40CrNiMoA, German DIN steel number 36CrNiMo4, German DIN material number 1.6511, French NF standard 40NCD3, Japanese JIS standard SNCM439, British BS standard 816M40, American AISI/ASTM4340, American UNS standard G43400
3.Company Introduction
Dongguan Songshun Mould Steel Co., Ltd.is an Indusrtial and trading company with 2 warehouses that manufactures good & high quality kinds of steels starting from 2012. The company provides the customized products and OEM service. Whats more, we keep the mass stock of over 20000 tons. In those years, we offer a wide range of steels to our customers from all over the world. And we enjoy high praise among them.
4.E-mail:jacklu@songshunsteel.com
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Payment Terms : L/C, D/A, D/P, T/T, Western Union, ,
Packaging Details : 1.Normally Neutral packaging inside and Wooden cases for outer packing.
2.According to requirement from customers.
Delivery Time : 7-20 days
Songshun 4140 Steel Bar Impermeability Songshun 4140 Steel Bar Tool Steel
Our company (Dongguan Songshun Die Steel Co., Ltd.) has been specializing in 4340 and 4140 alloy steel for more than 20 years in China, including alloy steel round steel, alloy steel square steel, alloy steel flat steel, square alloy steel and hexagonal alloy steel bar.
Description of 4140 steel: 4140 steel is an alloy structural steel. It is a general purpose high strength steel with moderate strength levels and good impact properties. This kind of steel belongs to medium hardenability steel, which has the advantages of high yield, good comprehensive mechanical properties, good strength, good toughness and high hardenability. The hardness is 241HB, 4140 has good strength and good comprehensive mechanical properties after heat treatment, and has good manufacturability. It can be used to make steam turbine fasteners, salvage tools, etc.
4140 steel application: 4140 steel bar is mainly used to produce high-strength stud bolts, screws, wind power bolts, prestressed anchor bolts, post-stressed anchor bolts, steel tie rods, tie rods, tie rods, tie rods, etc. Crankshaft, quill shaft, linear shaft, pump shaft, rotor shaft, sensor shaft, spline shaft, drive shaft, mandrel, drive shaft, screw, etc. CNC machine tools, precision CNC machine tools, etc. Thimble and ejector rod.
Contact Us
We provide high-quality steel, ex-factory price, support customization, strong company and factory strength; welcome your inquiry and orderplease contact us for quotes.
MiKi Zhuo
E-mail:jacklu@songshunsteel.com
Skype/Whatsapp/Wechat:+86-18269260283
ADD:No.4 Dongda Street, Shatou, Changan Town, Dongguan City, Guangdong Province, P.R.C China
For more 4140 steel product information, please click this link:
https://steelpurchase.com/4140-scm440-17225-steel/
Company website:
https://steelpurchase.com/
http://www.songshunsteel.com/
songshunmoldsteel41404340
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Payment Terms : L/C, D/A, D/P, T/T, Western Union,
Packaging Details : 1. Standard export package
2. In bundles with steel strips
3. Meet requirements of customers
Delivery Time : 7-20 days
1.Product Details
GB steel number: CN40CrNiMoA DIN36CrNiMo4 JISSNCM439
BS816M40 US:AISI/ASTM4340
keyword:aisi 4340 alloy steel, 4340 steel supplier
Usage: It is used as important quenched and tempered parts that require good toughness, high strength and large size, such as heavy machinery and high-load shafts, turbine shafts with a diameter greater than 250mm, helicopter rotor shafts, turbojet engine turbine shafts, blades, high Loaded transmission parts, crankshaft fasteners. gears, etc.;
Other SteelTypes:5140 /4140 / 4340 / 4142 / 15CrMo / 6150 / 38CrMoAI / 8620 .
Delivery status:With heat treatment (normalized, annealed or high temperature tempered) or without heat treatment Goods, the delivery status should be specified in the contract
productdescription:4340 steel is nickel-chromium-molybdenumalloy steel. It will get high strength after the heat treat. And it has good toughness, fatigue resistance, impact toughness and etc. 4340 steel round bar sheet plate will get high tensile strength, hardness and toughness after heat treatment. It is used widely in the transmission components of heavy chemical machinery. Different sections of each part of the casting which cause the temperature difference stress and phase transformation stress.
Its equivalent grade is JIS SNCM439 and DIN 1.6563. The properties and composition of4340 steel round bar sheet plateas below.
songshunmoldsteel41404340
Additional Information:
Payment Terms : L/C, D/A, D/P, T/T, Western Union,
Packaging Details : 1.Normally Neutral packaging inside and Wooden cases for outer packing.
2.According to requirement from customers.
Delivery Time : 7-20 days
14340 Product Process Treatment
*Delivery Condition: Hot rolled or Forged / Black or Bright /Annealed or Q+T*Technique:Cold or Hot Rolled / Cold Drawn or Hot Forged*Heat Treatment:Annealed or Q+T*Steel Making Process:EAF+LF+VD
*Test:SGS/UT100% / Elements Testing
4
MiKi Zhuo
E-mail:jacklu@songshunsteel.com
Skype/Whatsapp/Wechat:+86-18269260283
songshunmoldsteel41404340
Additional Information:
Payment Terms : L/C, D/A, D/P, T/T, Western Union, ,
Packaging Details : 1.Normally Neutral packaging inside and Wooden cases for outer packing.
2.According to requirement from customers.
Delivery Time : 7-20 days
1. Carbon (c): The carbon content in the steel increases, and the yield point and tensile strength of nickel-based alloys increase, but the plasticity and impact decrease. When the carbon content exceeds 0.23%, the welding performance of the steel deteriorates, so The low-alloy structural steel used for welding generally has a carbon content not exceeding 0.20%. High carbon content will also reduce the atmospheric corrosion resistance of steel, and high carbon steel in the open stock yard is easy to rust; in addition, carbon can increase the cold brittleness and aging sensitivity of steel.
2. Silicon (si): In the process of steelmaking, silicon is added as a reducing agent and a deoxidizer, so the killed steel contains 0.15-0.30% silicon. If the silicon content in the steel exceeds 0.50-0.60%, silicon is considered an alloying element. Silicon can significantly improve the elastic limit, yield point and tensile strength of steel, so it is widely used as spring steel. Adding 1.0-1.2% silicon to quenched and tempered structural steel can increase the strength by 15-20%. The combination of silicon and molybdenum, tungsten, chromium, etc. has the effect of improving corrosion resistance and chemical resistance, and can manufacture heat-resistant steel. Low carbon steel with silicon content of 1-4% has extremely high magnetic permeability, and is used in electrical industry to make silicon steel sheets. An increase in the amount of silicon will reduce the weldability of the steel.
3. Manganese (mn): In the process of steelmaking, nickel-based alloys are specialized. Manganese is a good deoxidizer and desulfurizer. Generally, steel contains 0.30-0.50% of manganese. When adding more than 0.70% to carbon steel, it is considered "manganese steel". Compared with ordinary steel, it not only has sufficient toughness, but also has higher strength and hardness, which can improve the hardenability of steel and improve the hot working performance of steel. For example, the yield point of 16mn steel is 40% higher than that of a3. Steel containing 11-14% manganese has extremely high wear resistance and is used for excavator buckets, ball mill lining plates, etc. The increase of manganese content weakens the corrosion resistance of steel and reduces the welding performance.
4. Phosphorus (p): In general, phosphorus is a harmful element in steel, which increases the cold brittleness of steel, deteriorates welding performance, reduces plasticity, and deteriorates cold bending performance. Therefore, the phosphorus content in steel is usually required to be less than 0.045%, and the requirements for high-quality steel are lower.
songshunmoldsteel41404340
Additional Information:
Payment Terms : L/C, D/A, D/P, T/T, Western Union,
Packaging Details : 1. Standard export package
2. In bundles with steel strips
3. Meet requirements of customers
Delivery Time : 8-20days
Internationally, there are various alloy structural steels, each of which has its own function and unique characteristics. Our company (Dongguan Songshun Mould Steel Co., Ltd.) has been focusing on 4340 and 4140 alloy steel round bars in China for more than 20 years, and has an in-depth understanding of these two alloy structural steels. Below, I will focus on the introduction of these two materials. various properties.
4340 belongs to American standard high-strength alloy structural steel, which is made of high-quality carbon structural steel by appropriately adding one or several alloying elements (the total content does not exceed 5%);
4140 steel is a kind of alloy structural steel. It belongs to the steel with the American grade equivalent to the 42CrMo grade in my country. This kind of steel belongs to the medium hardenability steel with high yield, good comprehensive mechanical properties, good strength, good toughness and hardenability. High advantages, its carbon content is 0.33%-0.48%, its tensile strength is 795 MPa, and its hardness is 241HB. After heat treatment at 4140, it has good strength and good comprehensive mechanical properties, and it has good manufacturability. Fasteners, salvage tools, etc.
Feel free to contact us, we are glad to serve for you.
Songshun Always Open the Door for You.
MiKi Zhuo
Skype/Whatsapp/Wechat:+86-18269260283
ADD:No.4 Dongda Street, Shatou, Changan Town, Dongguan City, Guangdong Province, P.R.C China
For more steel product information, please click this link:
http://www.songshunsteel.com/
songshunmoldsteel41404340
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Payment Terms : L/C, D/A, D/P, T/T, Western Union,
Packaging Details : 1.Normally Neutral packaging inside and Wooden cases for outer packing.
2.According to requirement from customers.
Delivery Time : 7-20 days
(1)40CrNiMoA Steelbelongs to the American standard high-strength alloy structural steel, which is made of high-quality carbon structural steel by appropriately adding one or more alloying elements (the total content does not exceed 5%).
(2)Corresponding steel number:
China GB steel number40CrNiMoA, German DIN steel number 36CrNiMo4, German DIN material number 1.6511, French NF standard 40NCD3, Japanese JIS standard SNCM439, British BS standard 816M40, American AISI/ASTM4340, American UNS standard G43400;
(3)Craft:
Adopt electric furnace, LF furnace, VD furnace, pouring, primary bar / large material opening and rolling process, as well as slow cooling, flaw detection, annealing and other smelting processes
Additional Information:
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Packaging Details : 1. Standard export package
2. In bundles with steel strips
3. Meet requirements of customers
Delivery Time : 8-14 days
1.Carbon structural steel, a kind of carbon steel. The carbon content is about 0.05% to 0.70%, and individual can be as high as 0.90%. It can be divided into ordinary carbon structural steel and high-quality carbon structural steel. It has many uses and a large amount of use. It is mainly used in railways, bridges, various construction projects, and manufacturing various metal components that bear static loads, as well as unimportant mechanical parts and general welding parts that do not require heat treatment.
2.Carbon steel can be divided into low carbon steel, medium carbon steel and high carbon steel according to chemical composition (that is, carbon content).
Low carbon steel Also known as mild steel, carbon content from 0.10% to 0.25% low carbon steel is easy to accept various processing such as forging, welding and cutting, commonly used in the manufacture of chains, rivets, bolts, shafts, etc.
(2) Medium carbon steel Carbon steel with a carbon content of 0.25% to 0.60%. There are killed steel, semi-killed steel, boiling steel and other products. In addition to carbon, it can also contain a small amount of manganese (0.70% to 1.20%). According to product quality, it is divided into ordinary carbon structural steel and high-quality carbon structural steel. Good thermal processing and cutting performance, poor welding performance. The strength and hardness are higher than those of low carbon steel, while the plasticity and toughness are lower than those of low carbon steel. Hot-rolled and cold-drawn materials can be used directly without heat treatment, or they can be used after heat treatment. The quenched and tempered medium carbon steel has good comprehensive mechanical properties. The highest hardness that can be achieved is about HRC55 (HB538), and b is 600-1100MPa. Therefore, among various uses of medium strength level, medium carbon steel is the most widely used, in addition to being used as a building material, it is also widely used in the manufacture of various mechanical parts.
High carbon steel Often called tool steel, the carbon content is from 0.60% to 1.70%, and it can be hardened and tempered. Hammers, crowbars, etc. are made of steel with a carbon content of 0.75%; cutting tools such as drills, taps, reamers, etc. are made of steel with a carbon content of 0.90% to 1.00%.
songshunmoldsteel41404340
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Payment Terms : L/C, D/A, D/P, T/T, Western Union,
Packaging Details : 1. Standard export package
2. In bundles with steel strips
3. Meet requirements of customers
Delivery Time : 7-25 days
1.Forged mold steelcan be roughly divided into three categories: cold-rolled die steel, hot-rolled die steel and plastic die steel, which are used for forging, stamping, cutting, die-casting, etc. Due to the different uses of various molds and complex working conditions, the steel used for molds should have high hardness, strength, wear resistance, sufficient toughness, and high hardenability, quenching according to the working conditions of the mold. Hardness and other process properties. Due to the different uses and complex working conditions, the performance requirements for mold steel are also different.
2.Today's high-strength steel and ultra-high-strength steel have well achieved the lightweight of vehicles and improved the crash strength and safety performance of vehicles, so they have become an important development direction of vehicle steel. However, with the improvement of sheet strength, the traditional cold stamping process is prone to rupture during the forming process, which cannot meet the processing requirements of high-strength steel sheets. In the case that the forming conditions cannot be met, the hot stamping technology of ultra-high-strength steel plates is gradually researched internationally. This technology is a new process that integrates forming, heat transfer and microstructure transformation. It mainly uses the characteristics of high-temperature austenite state, the plasticity of the sheet increases and the yield strength decreases, and the forming process is carried out through the mold. However, thermoforming requires in-depth research on process conditions, metal phase transformation, and CAE analysis technology. This technology is monopolized by foreign manufacturers, and domestic development is slow.
3.MiKi Zhuo
Skype/Whatsapp/Wechat:+86-18269260283
songshunmoldsteel41404340
Additional Information:
Payment Terms : L/C, D/A, D/P, T/T, Western Union,
Packaging Details : 1. Standard export package
2. In bundles with steel strips
3. Meet requirements of customers
Delivery Time : 7-20 days
4340 steel is nickel-chromium-molybdenumalloy steel. It will get high strength after the heat treat. And it has good toughness, fatigue resistance, impact toughness and etc. 4340 steel round bar sheet plate will get high tensile strength, hardness and toughness after heat treatment. It is used widely in the transmission components of heavy chemical machinery. Different sections of each part of the casting which cause the temperature difference stress and phase transformation stress.
Its equivalent grade is JIS SNCM439 and DIN 1.6563. The properties and composition of4340 steel round bar sheet plate as below.
For more 4340 steel product information, please click this link:
https://steelpurchase.com/4340-sncm439-16563-steel/#
https://songshun.en.alibaba.com/?spm=a2700.7756200.0.0.6af371d2Uav9AC
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Packaging Details : 1.Seaworthy packing;
2.Packaging according to customer requirements
Delivery Time : 8-21 days
DIN 1.7225 Corresponding steel number:
China GB steel number 42CrMo, Germany DIN steel number 42CrMo4, Germany DIN material number 1.7225, French NF standard 40CD4/42CD4, Japanese JIS standard SCM440, British BS standard 708M40/708A42/709M40, American AISI/ASTM 4140, American SAE 4140, American UNS Standard G41400
(4140 alloy structural steel, executive standard: ASTM A29/A29M-04)
DIN 1.7225 chemical composition:
C:0.38-0.45 Si:0.17-0.37 S:0.035 P:0.035
Mn:0.50-0.80 Cr:0.90-1.20 Mo:0.15-0.25 Ni:0.30
Cu0.30
DIN 1.7225 Mechanical properties:
Tensile strength b (MPa): 1080(110)
Yield strength s (MPa): 930(95)
Elongation 5 (%): 12
Area shrinkage (%): 45
Impact energy Akv (J): 63
Impact toughness value kv (J/cm2): 78(8)
Hardness: 217HB
Sample size: sample blank size is 25mm
MiKi Zhuo
E-mail:jacklu@songshunsteel.com
For more 4140 steel product information, please click this link:
https://steelpurchase.com/4140-scm440-17225-steel/
songshunmoldsteel41404340
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Payment Terms : L/C, D/A, D/P, T/T, Western Union,
Packaging Details : Packaging according to customer requirements
Delivery Time : 7-25 days
| Product name | aisi 4340 steel price best aisi 4340 steel price list | |
| keyword |
4340, AISI/ASTM/SAE 4340 Steel,
| |
| Standard | AISI/ASTM/DIN/NF/JIS/GB/BS | |
| Steel Grade | AISI 4340/ASTM 4340/DIN 1.6511 /NF40NCD3/JISSNCM439/GB40CrNiMoA/BS816M40 | |
| Chemical Compositions(%) | C:0.37-0.44 Si:0.17-0.37 S0.035 P:0.035 Mn:0.50-0.80 Cr:0.60-0.90 Mo:0.15-0.25 N:1.25-1.65 | |
| Mechanical properties | Tensile strength b (MPa): 980(100)Yield strength s (MPa): 835(85)Elongation 5 (%): 12Area shrinkage (%): 55Impact energy Akv (J): 78Elongation 5 (%): 12Area shrinkage (%): 55Impact energy Akv (J): 78Impact toughness value kv (J/cm2): 98(10)Sample size: sample blank size is 25mm | |
| Surface treatment | Black/Peeling/Polishing/Machined | |
| Technique | Cold/Hot rolled, Cold-Drawn or Hot Forged | |
| Heat Treatment | Annealed; Quenched; Tempered | |
| Delivery Condition | Hot Rolled or Forged/Peeled or Black Surface/Annealed or QT | |
| Heat treatment standard | Quenching at 850, oil cooling; tempering at 560, water cooling, oil cooling | |
| Metallographic structure | Tempered sorbite | |
| Test | SGS/UT100%/Elements Testing | |
| Certificate | SGS/ISO/Mill Certificate | |
| Delivery status
| Delivered in heat-treated (normalized, annealed or high temperature tempered) or unheated state | |
| | jacklu@songshunsteel.com | |
| Skype/Whatsapp/Wechat | +86-18269260283 | |
| Company website | https://steelpurchase.com/ http://www.songshunsteel.com/ |
Additional Information:
Payment Terms : L/C, D/A, D/P, T/T, Western Union,
Packaging Details : 1. Standard export package
2. In bundles with steel strips
3. Meet requirements of customers
Delivery Time : 8-14 days
Heat treatment:
1. Normalizing: Heat the furnace to 900C930C, keep the thickest cross section per inch at this temperature for one hour, and cool in air.
2. Heat to austenitizing at a temperature of 860885, and keep the thickest cross section per inch for one hour at this temperature
3. Normalizing or oil quenching, and cooling to a maximum temperature of 121C
4. Temper at a temperature that achieves the following mechanical properties. The thickest cross-section per inch is held for one hour at the tempering temperature, and the tempering temperature range is 640 C 680 C
5. For each heat treatment process, a heat treatment chart must be drawn.
6. The mechanical property test shall be carried out in accordance with the stipulations of ASTM. A-370. The sample material used for the test shall be cut from the test bar of the same furnace steel. The casting or forging represented by the sample and the test bar shall be in the same furnace. The test bar shall be heat treated in the same furnace together with the charge.
7. The mechanical properties should meet the following requirements: (Tested with a test bar, sampling according to APT 6A, 110K standard) - Tensile strength minimum lb/inch (862) Yield strength minimum lb/inch 110.000 (758) 2 inches The minimum value of elongation is 15% and the minimum value of section shrinkage rate is %40. Brinell hardness HB285 take, the casting or forging represented by the sample and the test bar must be in the same furnace, and the test bar should be heat treated in the same furnace together with the charge.
8. The mechanical properties should meet the following requirements: (tested with test bars, sampling according to APT 6A, 110K standard) - minimum tensile strength lbs/inch (862) minimum yield strength lbs/inch (758) 2 inches Minimum elongation %15 Minimum shrinkage of section %40 Brinell hardness HB285352
9. Marking: Each part shall be printed with heat treatment marks and hardness with low stress steel stamp.
We providehigh-quality steel, ex-factory price, support customization, strong company and factory strength; welcome your inquiry and orderplease contact us for quotes.
Additional Information:
Payment Terms : L/C, D/A, D/P, T/T, Western Union,
Packaging Details : 1. Standard export package
2. In bundles with steel strips
3. Meet requirements of customers
Delivery Time : 7-20 days
Hardness 241HB SteelProduct Details
Describe:4140 steel belongs to medium hardenability steel, which has the advantages of high yield, good comprehensive mechanical properties, good strength, good toughness and high hardenability. Its carbon content is 0.33%-0.48%, its tensile strength is 795 MPa, and its hardness is It is 241HB
Advantage:After heat treatment, 4140 has good strength and good comprehensivemechanical properties, and has good manufacturability. It can be used to make steam turbine fasteners, salvage tools, etc.
Feature:This steel has good strength, good toughness, high hardenability, good workability, small processing deformation, quite good fatigue resistance, small deformation during quenching, high creep strength and durable strength at high temperature and so on.
Application:It is used to manufacture forgings that require higher strength and larger quenched and tempered section than 35CrMo steel, such as large gears for locomotive traction, supercharger transmission gears, rear axles, connecting rods and spring clips that are heavily loaded, and can also be used for Drill pipe joints and fishing tools for oil wells below 2000m, and can be used for molds of bending machines, etc.
For more 4140 steel product information, please click this link:
https://steelpurchase.com/4140-scm440-17225-steel/
songshunmoldsteel41404340
Additional Information:
Payment Terms : L/C, D/A, D/P, T/T, Western Union,
Packaging Details : 1. Standard export package
2. In bundles with steel strips
3. Meet requirements of customers
Delivery Time : 7-20 days
Songshunsteel (Dongguan Songshun Mould steel Corporation Limited)Chicago - 523846, United States
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