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40CrNiMoA
40CrNiMoA

Minimum Order: 0
Quality/Safety Certification: 0.00


1.forged or hot rolled
2.SEP1921 D/d
3. 30-60 days
4.(14~500)*(50~15000)*(2000~6000) or dia (15~900)
5. black,milled,turned

1.Chemical Composition

Standard

Steel Grade

C

Si

Mn

P

S

Cr

Mo

V

W

other

DIN

1.6510

0.35-0.43

≤0.40

0.50-0.80

0.025

0.035

0.60-1.00

0.15-0.25

 

 

Ni 0.70-1.20

ASTM

4340

0.38-0.43

0.15-0.35

0.60-0.80

0.035

0.040

0.70-0.90

0.20-0.30

 

 

Ni 1.65-2.00

GB

40CrNiMoA

0.37-0.44

0.17-0.37

0.50-0.80

0.025

0.025

0.60-0.90

0.15-0.25

 

 

Ni 1.25-1.65

 

2.Size:

round

diameter(mm)

length(mm)

 

 14~900

 2000~6000

 

plate/sheet

thichkness(mm)

width(mm)

length(mm)

15~500

50~1500

2000~6000

 

3.Hardness of annealed:

HBS≤

 

4. The Process

EAF+LF+VD+ESR+Forged or hot rolled+Heat Treatment(optional)

 

5. condition of surface

black

 rough machined(peeled)

 turned

 

6. Inspecting

ultrosonic test, according to SEP1921 D/d or as your requirements

 

7. Quality Control

Supply M.T.C or third party inspection institution

 

 

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