Inch

Metric

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"

3"

3 1/2"

4"

4 1/2"

5"

5 1/2"

6"

6 1/2"

7"

8"

9"

Cast Iron

Stainless Steel

Steel

0.028"

0.035"

0.049"

0.058"

0.065"

0.083"

0.095"

0.12"

0.156"

0.188"

1"

1 1/2"

Hard

0.06"

0.075"

0.105"

0.12"

0.135"

0.188"

1"

1 1/4"

1 1/2"

2"

2 5/8"

2 3/4"

1"

1 1/2"

1 3/4"

2"

40,000 psi to 99,999 psi

100,000 psi to 199,999 psi

200,000 psi or greater

Not Rated

1"

1 1/4"

1 1/2"

2"

2 1/8"

2 1/4"

2 1/2"

2 5/8"

3"

3 1/8"

3 1/2"

4"

5"

6"

6 1/8"

6 1/4"

8"

8 1/8"

12"

12 1/4"

24"

Cast

Cold Drawn

Cold Rolled

Cold Worked

Hot Rolled

Seamless

1"

ASTM Standard

DIN Standard

SAE Standard

Oversized

Undersized

Standard

Tight

Material Certificate with Traceable Lot Number

0.305"

0.43"

0.495"

0.527"

0.555"

0.62"

0.652"

0.68"

0.87"

0.902"

0.93"

1.37"

1.402"

1.62"

1.87"

Rockwell C49

Rockwell C50

Rockwell C54

Rockwell C60

Not Rated

Compliant

Exempt

Not Compliant

Compliant

Compliant with Exemptions

9A991

EAR99

Compliant

Not Compliant