Inch

1/4 Hard

1/2 Hard

Full Hard

Spring

1"

1 1/4"

1 1/2"

2"

3"

4"

6"

7 3/4"

8"

10"

12"

12 3/8"

15"

24"

36"

48"

301 Stainless Steel

1100 Aluminum

Cotton Fabric

Steel

Vermiculite

3"

6"

12"

2 ft.

25"

3 ft.

3 3/4 ft.

4 ft.

50"

5 ft.

7 ft.

9 ft.

10 ft.

20 ft.

25 ft.

50 ft.

75 ft.

100 ft.

Annealed

Hardened

Medium

Hard

Extra Hard

ASTM Standard

SAE Standard

Rockwell B74

Rockwell B90

Rockwell C25

Rockwell C30

Rockwell C40

Rockwell C44

Rockwell C45

Rockwell C48

Rockwell C48 to Rockwell C51

Rockwell C58

Rockwell C64

Not Rated

1,000° F to 1,999° F

Not Rated

0.04"

Compliant

30,000 psi to 99,999 psi

100,000 psi or greater

Not Rated

Compliant

Material Certificate with Traceable Lot Number

Material Certificate with Traceable Lot Number and Test Report

2B999

EAR99

Compliant

Exempt

Not Rated

Cold Worked

6%

8%

9.5%

11%

Not Rated

Standard