- Dongguan City Song Shun Mould Steel Products Co., Ltd.
- China Manufacturer with main products:Cool work mold steel ,Hot work mold steel ,Plastic mold steel ,High speed steel ,Alloy structual steel ,Carbon structural steel ,Stainless steel ,4340 steel ,4340 steel bar ,4340 forged steel ,4340 steel plate ,4340 alloy steel
Home > Products > 4140 Steel Bar > AISI 4140 Steel | SAE 4140 Steel Round Bars | Processing Technology 4140 Heat Treatment
AISI 4140 Steel | SAE 4140 Steel Round Bars | Processing Technology 4140 Heat Treatment
- 10000 Ton / Tons per Month
- Shenzhen,Tianjin,Shanghai.China
- T/T L/C D/P D/A Credit Card PayPal Cash Escrow Other
- 7 days
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Product Details
Brand Name: | SongShun | Place of Origin: | China | Model Number: | AISI 4140 /ASTM 4140 /DIN 1.7225 /NF 40CD4 /JIS SCM440 /GB 42CrMo /BS 708M40 |
Type: | Alloy Steel Bar | Application: | Structural Steel Bar | Technique: | Hot Rolled |
Standard: | AISI, ASTM, BS, DIN, GB, JIS | Alloy Or Not: | Is Alloy | Dimensions: | SAE 4140 Steel Round Bars |
Special Use: | Mold Steel | Steel Grade: | 4140/42CrMo/42CrMo4/1.7225/40CD4/SCM440/708M40//708A42/709M40/G41400 |
Product Description
SAE 4AISI 4140 Steel | SAE 4140 Steel Round Bars | Processing Technology 4140 Heat Treatment
1.SAE 4140 steel Product Details
· Steel number: GB:42CrMo DIN:1.7225 JIS:SCM440 BS:708M40/708A42/709M40
AISI/ASTM/SAE: 4140 UNS:G41400
· keyword:4140 steel round bars,4140 heat treatment
· 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
1.1 AISI/ASTM 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% |
1.2 ASTM 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 |
1.3 Hardening
AISI 4140 steel is usually supplied ready heat treated to 18-22HRC. If further heat treatment
is required annealed AISI 4140 should be heated slowly to 840-875°C and after adequate soaking
at this temperature quench in oil. Temper as soon as the tools reach room temperature.
1.4 Surface Treatment
Plate: Origin Black, Orign cold rolled bright, Machined, Grinded
Bar: Origin Black, Orign cold rolled(drawn) bright, Turned, Peeled, Grinded
1.5 Tempering
Heat the AISI 4140 carefully to a suitable temperature selected by reference to a tempering
chart or table (usually between 550-700°C, soak at the temperature for 2 hours per 25mm
of ruling section, then allow to cool in air. Tempering between 250-375°C is not advised as
tempering within this range will seriously reduce the impact value.
1.6 Product Photo
2.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.
3.Customer Photos
We warmly welcome new and old customers to establish good and long term relationship with us based on equality and mutual assistance.
4.Certifications
5.Product packaging
6.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.
7.Contact us
Feel free to contact us,we are glad to serve for you.
Songshun Always Open the Door for You.
MiKi Zhuo
E-mail:jacklu@songshunsteel.com
Skype/Whatsapp/Wechat:86-13723516041
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/
songshunmoldsteel41404340
Contact Us
- Dongguan City Song Shun Mould Steel Products Co., Ltd.
- Contact nameZhuo
- Phone86-0769-85475596
- Address1st Floor, No. 1, Dongda Fourth Street, Shatou Community, Chang'an Town Dongguan,Guangdong
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