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Your Position:Home > Product > Engineering Steel

41Cr4/1.7035/SCr440/40Cr

Update:2018/7/22 19:51:57      View:2600
  • Type:   41Cr4 / 1.7035/ SCr440 /40Cr
  • Description:

    41Cr4 / 1.7035/ SCr440 /40Cr

Introduction
41Cr4 / 5140 Alloy Steel Bar for Machinery Parts, Transmission Parts, Plastic Mold
  
Equivalence

AISI / SAE

DIN / W.Nr

JIS

GB

5140

41Cr4
 41CrS4
 1.7035

SCr440

40Cr

 
Chemical Composition (%)

Steel Grade

C

Si

Mn

P

S

Cr

41Cr4
1.7035

0.38
0.45

0.15
0.35

0.50
0.80

≤
0.035

≤
0.035

0.90
1.20

41CrS4

0.38
0.45

0.15
0.35

0.50
0.80

0.020
0.040

≤
0.035

0.90
1.20

5140

0.38
0.45

0.15
0.35

0.50
0.80

≤
0.035

≤
0.035

0.90
1.20

SCr440

0.38
0.44

0.15
0.35

0.60
0.90

≤
0.030

≤
0.030

0.90
1.20

40Cr

0.37
0.44

0.17
0.37

0.50
0.80

≤
0.035

≤
0.035

0.80
1.10

 
Dimensions

 

Hot Rolled

Forged

Cold Drawn

Diameter (mm)

10-260

100-1500

2.5-70

Length (mm)

4000-10000

3000-10000

4000-10000

 
Delivery Condition
EAF+LF+VD, Hot Rolled or Forged or Cold Drawn, Black surface or Machined surface (Peeled, Turned, Grinded), UT 100% Passed
 
Characteristics
1. One of the most popular grade in mechanical manufacturing industry
2. Good comprehensive mechanical property, good impact toughness in low temperature, low notch sensitivity after heat treatment.
3. Good hardenability, water quenching can reach dia.28-60mm , oil quenching can reach dia.15-40mm
4. Suitable for nitriding and high frequency quenching.
5. Good machinability.
 
Applications
1. For making intermediate speed and medium duty axle parts after Q+T.
2. For making parts with high surface hardness and wear resistance after Q+T and high frequency quenching.
3. For making intermediate speed impact and heavy duty parts after quenching and average tempering.
4. For making low speed impact, heavy duty and wear resistance parts after quenching and low tempering.
5. For making good toughness transmission parts in low temperature after Carbonitriding processing.
6. For making medium size plastic mould.
 
Forging Technique

Heat
Temperature

Start Forging
Temperature

Finish Forging
Temperature

Cooling Method

<1200 °C

1100-1150 °C

>=800 °C

Slow Cooling

 

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