Here are the physical and chemical properties of the 301, 302, and 304 stainless steel that we regularly stock - including the free bend requirements for each alloy.
| 301 Physical Properties | ||||||
|---|---|---|---|---|---|---|
| UNS Designation S30100 | ||||||
| Tensile | Yield | Elongation | Thickness | |||
| Condition | ksi | ksi | in 2" min % | 0.015 in | 0.015 - 0.030 in | > 0.030 in |
| Annealed | 75 | 30 | 40 | 45 | ||
| 1/4 Hard | 125 | 75 | 25 | 25 | 25 | |
| 1/2 Hard | 150 | 110 | 15 | 18 | 18 | |
| Full Hard | 185 | 140 | 8 | 9 | 9 | |
| 301 Free Bend Requirements | |||
|---|---|---|---|
| UNS Designation S30100 | |||
| Thickness 0.050 in | Thickness > 0.050 to 0.1874 in | ||
| Condition | Bend Angle | Bend Factor | Bend Angle |
| 1/4 Hard | 180° | 1 | 90° |
| 1/2 Hard | 180° | 2 | 90° |
| Full Hard | 180° | 4 | 90° |
| 302 Physical Properties | |||||||
|---|---|---|---|---|---|---|---|
| UNS Designation S30200 | |||||||
| Tensile | Yield | Elongation | Hardness Max | Thickness | |||
| Condition | ksi | ksi | in 2" min % | Brinell/Rockwell B | 0.015 in | 0.015 - 0.030 in | > 0.030 in |
| Annealed | 75 | 30 | 40 | 201/92 | |||
| 1/4 Hard | 125 | 30 | 10 | 10 | 12 | ||
| 1/2 Hard | 150 | 110 | 9 | 10 | 10 | ||
| Full Hard | 185 | 140 | 3 | 4 | 4 | ||
| 302 Free Bend Requirements | |||
|---|---|---|---|
| UNS Designation S30200 | |||
| Thickness 0.050 in | Thickness > 0.050 to 0.1874 in | ||
| Condition | Bend Angle | Bend Factor | Bend Angle |
| 1/4 Hard | 180° | 1 | 90° |
| 1/2 Hard | 180° | 2 | 90° |
| 304 Physical Properties | |||||||
|---|---|---|---|---|---|---|---|
| UNS Designation S30400 | |||||||
| Tensile | Yield | Elongation | Hardness Max | Thickness | |||
| Condition | ksi | ksi | in 2" min % | Brinell/Rockwell B | 0.015 in | 0.015 - 0.030 in | > 0.030 in |
| Annealed | 75 | 30 | 40 | 201/92 | |||
| 1/4 Hard | 125 | 75 | 10 | 10 | 12 | ||
| 1/2 Hard | 150 | 110 | 6 | 7 | 7 | ||
| 304 Free Bend Requirements | |||
|---|---|---|---|
| UNS Designation S30400 | |||
| Thickness 0.050 in | Thickness > 0.050 to 0.1874 in | ||
| Condition | Bend Angle | Bend Factor | Bend Angle |
| 1/4 Hard | 180° | 1 | 90° |
| 1/2 Hard | 180° | 2 | 90° |
|
Stainless Steel Chemical Composition
|
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|---|---|---|---|---|---|---|---|---|---|
|
ASTM A240/A666
|
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|
Annealed, 1/4 Hard, 1/2 Hard, Full Hard
|
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|
|
UNS Designation
|
Carbon |
Manganese
|
Phosphorus | Sulfur | Silicon | Chromium | Nickel | Other Elements |
|
301
|
S30100
|
0.15 |
2.00
|
0.045 | 0.03 | 1.00 | 16.0-18.0 | 6.0-8.0 | N 0.10 |
|
302
|
S30200
|
0.15 |
2.00
|
0.045 | 0.03 | 0.75 | 17.0-19.0 | 8.0-10.0 | |
|
304
|
S30400
|
0.03 |
2.00
|
0.045 | 0.03 | 0.75 | 18.0-20.0 | 8.0-10.5 | N 0.10 |
