Inch

Metric

1"

1 1/2"

2"

3"

4"

5"

6"

8"

10"

12"

20"

24"

150 mm

6"

1 ft.

1 1/2 ft.

2 ft.

25"

3 ft.

4 ft.

50"

5 ft.

100"

9 ft.

10 ft.

20 ft.

25 ft.

50 ft.

54 ft.

75 ft.

100 ft.

1,250 mm

Annealed

Hardened

0.001"

0.002"

0.003"

0.004"

0.005"

0.006"

0.007"

0.008"

0.009"

0.01"

0.012"

0.015"

0.02"

0.025"

0.031"

Brushed

Matte

Mirror Like

Plain

250° F to 499° F

1,000° F to 1,499° F

1,500° F or greater

ASTM Standard

SAE Standard

1/2 Hard

Full Hard

Spring

Material Certificate with Traceable Lot Number

Material Certificate with Traceable Lot Number and Test Report

Medium

Hard

Extra Hard

Compliant

Exempt

Not Compliant

Rockwell B75

Rockwell B80

Rockwell B85

Rockwell B88

Rockwell B95

Rockwell C30

Rockwell C40

Rockwell C50

Rockwell C55

Compliant

Not Compliant

1C999

2B999

EAR99

Compliant

Magnetic

May Be Mildly Magnetic

30,000 psi to 99,999 psi

100,000 psi or greater

Not Rated

Cold Rolled

Cold Worked

-49° F to -25° F

Not Rated

8%

9.5%

10%

25%

26%

39%

40%

50%

55.3%