Alloy 4140 Plate  Alloy 4140 Plate China Good Low-Temperature Alloy 4140

1.AISI 4140 Product Details
·keyword:Alloy 4140 Plate 
·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 
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)

3.AISI 4140 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
Cu≤0.30

4.SAE 4140 Mechanical Properties
Tensile strength σb (MPa): ≥1080(110)
Yield strength σs (MPa): ≥930(95)
Elongation δ5 (%): ≥12
Area shrinkage ψ (%): ≥45
Impact energy Akv (J): ≥63
Impact toughness value αkv (J/cm2): ≥78(8)
Hardness: ≤217HB
Sample size: sample blank size is 25mm

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.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.                 

8.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.

9.Contact us
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
A , DD: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-scm440-172 , 25-steel/
songshunmoldsteel41404340

Minimum Order: 1 tons

Click to Enlarge