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4140/1.7225/42CD4/708A42 Heat Treat 241HB Hardness Steel
1.AISI 4140 Product Details
· keyword:4140 heat treat,4140 hardness,4140 steel
· Usage: It is used to manufacture forgings that require higher strength and larger quenched and tempered sections 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.
· Other Steel Types:5140 /4140 / 4340 / 4142 / 15CrMo / 6150 / 38CrMoAI / 8620 .....
· Serve:OEM/ODM,Sample free and 24 hours online
· 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
2.SAE 4140 Steel Equivalent Steel Grade
3.AISI 4140 Chemical composition
| C | 0.38-0.45% | Cr | 0.90-1.20% |
| Si | 0.17-0.37% | Mo | 0.15-0.25% |
| Mn | 0.50-0.80% | Ni | ≤0.30% |
| P | ≤0.035% | S | ≤0.035% |
4.SAE 4140 Mechanical Properties
Tensile Strength |
σb (MPa):≥1080(110) |
| Yield Strength | σS (MPa):≥930(95) |
| Elongation | δ5 (%):≥12 |
| Reduction | ψ (%):≥45 |
| Impact Energy | Akv (J):≥63 |
| Impact Toughness | akv (J/cm2):≥78(8) |
| Annealed Hardness | ≤217HB |
5.ASTM 4140 Surface Treatment and Heat Treatment
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
Heat treatment standard: quenching at 850℃, oil cooling; tempering at 560℃, water cooling, oil cooling;
6.4140 Steel Applications
It is used to manufacture forgings that require higher strength and larger quenched and tempered sections 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.
7.G41400 Steel Product Photo
8.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. What´s 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.
9.Customer Photos
We warmly welcome new and old customers to establish good and long term relationship with us based on equality and mutual assistance.
10.Certifications
11.Product packaging
12.FAQ
Q:Are you a factory or a trading company?
A: The fact is that we are a company. We have own factory and several warehouses. Under the trend of globalization of the world, we established a professional foreign trade department to change the world.
Q: What is your delivery date?
A: The delivery date is about 10-30 days after receipt of payment.
Q: Can I get some samples?
A: We are honored to offer you samples.
Q: What port do you usually ship from?
A: We have 3 common ports,Tianjin, Shanghai and Shen.
Q: What is the payment terms?
A: T/T is our priority, L/C is also OK for us.
13.Contact us
Feel free to contact us,we are glad to serve for you.
Songshun Always Open the Door for You.
MiKi Zhuo
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://songshunsteel.en.china.cn/2194011-4140-Steel-Bar
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