Home Companies DongGuan RuiYuan Steel Co.Ltd

Wear Resistence DIN1.7225 / SAE4140 / GB42CrMo, JIS SCM440, Alloy Forged Steel Rings / Plates

Active Member

Contact Us

[China]

Address: 2nd F,Sihai commerical building,Jinghai Road, ChangAn town, DongGuan City, GuangDong Provice, China

Contact name:Judy Tueng

DongGuan RuiYuan Steel Co.Ltd

Wear Resistence DIN1.7225 / SAE4140 / GB42CrMo, JIS SCM440, Alloy Forged Steel Rings / Plates

Country/Region china
City & Province dongguan guangdong
Categories Door Catches & Door Closers

Product Details

 

Wear Resistence DIN1.7225 / SAE4140 / GB42CrMo, JIS SCM440,  Alloy Forged Steel Rings / Plates

 

Description:

 

1.DIN1.7225/SAE4140/GB42CrMo,JIS SCM440 alloy steel plate

2.Hot rolled or forged condition, annealing or harden, black or milled surface

3.Pre-heat treatment:

  • Annealing : heat to 840-860°c, keep 2H, furnace cold, hardness≤217HBS
  • High temperature tempering : heat to 680-700°c, air cold, hardness ≤217HBS

4.Heat treatment: 

  • Normalization: heating to 840 to 880 ° C, maintenance, furnace cooling to 600 ° C, then in air. 
  • Stress relieving: after rough heat to 500 ° C, maintenance raff. In oven to 400 ° C, then in air.
  • Hardening: preheating from 600 to 650 ° C austenitizing at 840 to 880 ° C, quenching in oil. 
  • Tempering: heating to 550 - 650 ° C and maintenance regime, again depending on the 
  • mechanica properties 

5.Hot rolled technology:EAF+LF+VD

  Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface 

6.Ultrasonic test standard: SPE1921-GR3, CLASS C/C or D/D

7.Production leadtime: 7~10 days

8. Chemical composition:

 

C

Mn

Si

Cr

Ni

Cu

P

S

0.17-0.23

0.30-0.60

0.15-0.40

1.25-1.75

3.25-3.75

≤0.25

≤0.030

≤0.030

 

9.Compared grades(based on usage):

 

Chinese

American

German

Japanese

GB

AISI

DIN

JIS

42CrMO4

4140

1.7225

 SCM440

 

 

Applications: 

  • General service industries (petroleum, food, chemical, paper, fertilizer,  Fabric, aviation and 
  • nuclear)
  • Fluid, gas and oil transport
  • Pressure and heat transmission
  • Construction and ornament
  • Boiler heat exchangers

 

 

Specifications:

 

Hot rolled condition

Steel plate(mm)

Mill name

 

Diameter

Length

 

 

¢16~¢205

2000~5800

ChangGang,Fushui, TianGong steel 

Forged condition 

¢150~¢600

2500~4000

Local mill with 6000tons fluid forged machine

 

 

Competitive Advantage:

 

  • Good purity and homogeneity.
  • Good machinability(Roughing, grinding and drilling).
  • Good dimensional stability during heat treatment.
  • Excellent preparation for nitriding, both ionic and gaseous, induction hardening to increase the mechanical properties.
  • Competitive price
  • Fast production leadtime
  • All the material are inspected with 3 times to meet the highly standards
     

Hot Products

Description: 1.DIN 1.2738/AISI P20+Ni/718/ GB 3Cr2NiMnMo Mold Steel 2.Hot rolled or forged condition...
Description: 1.DIN 1.2738/AISI P20+Ni/718/ GB 3Cr2NiMnMo Mold Steel 2.Hot rolled or forged condition...
Hot rolled 1.2738 Steel , Mirro Plastic Moulds 1.2738 mould steel used for various large-sized mirro ...
Plastic Mold 1.2738 Steel , 100~180MM Thickness 100~180MM thickness injection P20+NI /1.2738 plastic ...
Large-sized Mould 1.2738 Steel for Precise Plastic Molds Specifications 1. Highly polish ability 2. ...
Hot Rolled AISI 1.2738 Steel High Grade Plastic Mould Steel Hot Rolled High Grade Plastic Mould ...