Good Fatigue Resistance Material 4140 Steel Round Bar Alloy Structural - China

SAE AISI 4140 steel heat treatment

(1)Machinability

In the annealed condition, the alloyed tool steel 1.7225 has good machinability

(2)Training

DIN 1.7225 steel has high ductility.

It can be shaped in the annealed state using conventional techniques.

More pressure or force is required to form because it is tougher than plain carbon steels.

(3)Welding

Alloy steel 1.7225 can be welded with all advanced techniques.

However, the mechanical properties will be affected if it is welded in the heat treated condition and post-weld heat treatment should be performed.

(4)Heat treatment

1.7225 tool steel is heated to 845°C (1550°F) and then oil quenched.

Before hardening, it can be normalized by long heating to 913 °C (1675 °F) and then air cooling.

(5)Forge

It is forged at 926 to 1205 °C

(6)Hot working

4140 steel can be hot worked at 816 to 1038 °C (1500 to 1900 °F).

(7)Cold working

1.7225 steel can be cold worked in the annealed condition using conventional methods.

(8)Glow

Heat it to 800 – 850 °C, hold until the temperature is uniform throughout the section and cool in the kiln.

(9)Normalize

Heat the 1.7225 alloy steel to 870-900℃, hold until the temperature is uniform throughout the section, soak for 10-15 minutes, and cool in still air.

(10)Cranking

DIN 1.7225 steel can be tempered at 205 to 649 °C (400 to 1200 °F) depending on the desired hardness.

The hardness of the steel can be increased if the tempering temperature is lower.

For example, a tensile strength of 225 ksi can be achieved by annealing at 316 °C (600 °F), and a tensile strength of 130 ksi can be achieved by annealing at 538 °C (1000 °F).

(11)Hardening

Alloy steel according to DIN 1.7225 can be hardened by cold forming or heating and quenching.

Company Strength After more than ten years of development and growth, Songshun Iron and Steel has become a comprehensive special steel production enterprise, inventory enterprise and export enterprise.

With an experienced export team and professional technical knowledge, Songshun Steel provides customers with technical advice and support, as well as global professional steel solutions and services.

With satisfactory and reliable quality and professional services, the company's markets are all over the world, such as Colombia, Chile, Spain, Turkey, Iran, Vietnam, Malaysia, United Arab Emirates, Canada, Brazil, Mexico, etc.

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Company Contact:

• Posted By: Dongguan Songshun Mould Steel Co., Ltd.

• Phone: 076985475596

• Address: 1st Floor, No. 1, Dongda Fourth Street, Shatou Community, Chang'an Town, Dongguan , Guangdong , China

• Email:

• Website: https://songshunsteel.com/

• Business Description: Established in 2009,Songshun Steel supplies a wide range of carbon, alloy and tool steel products, including high speed tool steel, cold work tool steel, hot work tool steel, plastic mould steel, engineering steel and machine structural steel etc.
  
  After more than 10 years development and growing, Songshun Steel becomes one comprehensive special steel factory, stockist and exporter.
  
  Combined with experienced exporting team and professional technical knowledge, Songshun Steel offers both technical advice and support, as well as global professional steel solution and service.
  
  Due to satisfactory reliable quality and professional service, Songshun expands our market worldwide, such as Colombia, Chile, Spain, Turkey, Iran, Vietnam, Malaysia ,UAE, Canada, Brazil, Mexico and so on.
  
  Songshun specialized in Special Steel for almost 20 years.
  
  We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.
  
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