41L40 Alloy Steel

4130 Alloy Steel

4140 Alloy Steel

4150 Alloy Steel

Inch

Metric

0.025"

0.032"

0.04"

0.05"

0.062"

0.063"

0.071"

0.08"

0.09"

0.093"

0.1"

0.16"

0.19"

1"

1 1/8"

1 1/4"

1 3/8"

1 1/2"

1 3/4"

2"

2 1/4"

2 1/2"

2 3/4"

3"

3 1/2"

Annealed

Hardened

Normalized

Stress Relieved

1"

1 1/8"

1 1/4"

1 3/8"

1 1/2"

1 5/8"

1 3/4"

2"

2 1/4"

2 1/2"

2 3/4"

3"

3 1/4"

3 1/2"

3 3/4"

4"

4 1/4"

4 1/2"

4 3/4"

5"

5 1/2"

6"

Medium

Hard

Oversized

Undersized

Standard

Tight

Ground

Polished

Precision Ground

Turned

Rockwell B85

Rockwell B90

Rockwell B95

Rockwell B98

Rockwell C10

Rockwell C15

Rockwell C19

Rockwell C20

Rockwell C22

Rockwell C25

Rockwell C27

Rockwell C28

Rockwell C30

Rockwell C32

Rockwell C35

40,000 psi to 99,999 psi

100,000 psi to 199,999 psi

Not Rated

0.028"

0.035"

0.049"

0.058"

0.065"

0.083"

0.095"

0.12"

0.156"

0.188"

1"

1 1/4"

2"

Cold Drawn

Cold Worked

Hot Rolled

ASTM Standard

DIN 6880

SAE Standard

1"

1 1/2"

1 3/4"

2"

Rockwell C32

Rockwell C48

Rockwell C49

Rockwell C60

Rockwell C63

Not Rated

Material Certificate with Traceable Lot Number

Compliant

Not Compliant

Compliant

Compliant with Exemptions

Not Compliant

9A991

EAR99

Compliant

Exempt

Not Compliant