4140/42CrMo/42CrMo Steel Alloy Structural Steel Bar

Dongguan Songshun Mould Steel Co., Ltd.

1.AISI 4140 Product Details

· Steel number:   GB:42CrMo  DIN:1.7225  JIS:SCM440  BS:708M40/708A42/709M40

  AISI/ASTM/SAE: 4340  UNS:G41400 

· keyword:4140,4140 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

1.1 AISI/ASTM 4140 Chemical composition

1.2 ASTM 4140 Mechanical Properties

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.

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  Applications

For main shaft of steamer,bilt for 400℃.Hummar shank.Bigger section than 35CrMo.Supper force.                             

1.7  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

Skype/Whatsapp/Wechat:86-13723516041

ADD:No.4 Dongda Street, Shatou, Changan Town, Dongguan City, Guangdong Province, P.R.C China