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Black Hot Rolled AISI 4140 Steel Bar Steel Wire Rod For Fasteners
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Black Hot Rolled AISI 4140 Steel Bar Steel Wire Rod For Fasteners

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AISI 4140 Alloy Steel Bar , Steel Wire Rod for Fasteners Making

 

Steel Grade:

4140

Application:

Machinery Steel, Engineering Steel

Shape:

Wire Rod

Standard:

AISI, SAE, ASTM

Dimension:

Φ 5.5-36 mm

Surface:

Black

Technique:

Hot Rolled

Ultrasonic Test:

100% UT Passed

 

 

Description:

 

 

Equivalence

AISI / SAE

DIN / W.Nr

JIS

GB

4140

42CrMo4

1.7225

SCM440

42CrMo

 

 

Chemical Composition (%)

C

Si

Mn

P

S

Cr

Mo

0.38

0.43

0.15

0.35

0.75

1.00

≤

0.035

≤

0.040

0.80

1.10

0.15

0.25

 

 


 Delivery Condition

EAF+LF+VD, Hot Rolled, Black surface, UT 100% Passed

 

 

Characteristics

1. Ultrahigh strength steel with high intensity and toughness.

2. Good harden ability, High fatigue limit and capability of impact resistance after Q+T.

3. No obvious temper brittleness.

 

 

Forging Technique

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Mr. Elle Wang
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Ningbo Ningshing Special-Steel Group Co., Ltd.
No.25 Hongxiang Rd A area Industry Hongtang Jiangbei, Ningbo, Zhejiang, China (Mainland)
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