ASTM A473
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ASTM A473
This specification covers austenitic, austenitic-ferritic,ferritic, and martensitic stainless steel forgings for general use, and for low- or high-temperature service.The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
ASTM A473 Chemical Requirements
| UNS Designation | Type Number |
Carbon, % |
Manganese, % |
Phosphorus, % |
Sulfur, % |
Silicon, % |
Chromium, % |
Nickel, % |
Molybdenum, % |
|---|---|---|---|---|---|---|---|---|---|
| S30300 | 303 | 0.15 | 2.00 | 0.20 | 0.15 min | 1.00 | 17.0–19.0 | 8.0–10.0 | 0.60C |
CAt manufacturer’s option; reported only when intentionally added.
ASTM A473 Mechanical Properties
| Type | Condition | Yield Strength, min, ksi (MPa)A | Tensile Strength, min, ksi (MPa) | Elongation in 2 in. (50 mm) or 4D, min % | Reduction of Area, min, % | Brinell Hardness Number,max |
|---|---|---|---|---|---|---|
| 303, 303SE |
A | 30 (205) | 75 (515) | 40 | 50 | . . . |
AYield strength shall be determined by the 0.2 % offset method in accordance with Test Methods and Definitions A370. An alternative method of determining yield strength may be used based on a total extension under load of 0.5 %.