United States · ASTM
A511 MT302
ASTM A511/A511M:2012 — Standard Specification for Seamless Stainless Steel Mechanical Tubing
Chemical composition
wt% · log scale- min – max range
- typical value
Mechanical properties
value range by conditionChemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.08 | 0.2 | ||
| Cr | 17 | 19 | ||
| Mn | 2 | |||
| Ni | 8 | 10 | ||
| P | 0.04 | |||
| S | 0.03 | |||
| Si | 1 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| Seamless tubes, annealed | ≥210 | ≥515 | ≥35 Lo = 50mm; For longitudinal strip tests | HR ≤90 HRB；HB ≤192 HRB |