ASTM A582-A582M
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ASTM A582 / A582M
This specification covers hot-finished or cold-finished bars, except bars for forging (Note 1), suitable for machining processes. It includes rounds, squares, and hexagons in the more commonly used types of stainless free-machining steels designed especially for optimum machinability and for general corrosion and high-temperature service. Stainless steel bars other than the free-machining types are covered in a separate specification.
ASTM A582 / A582M Chemical Requirements
| UNS Designation | TypeB | CarbonC | ManganeseC | PhosphorusC | SulfurC | Silicon, max | Chromium | Nickel |
|---|---|---|---|---|---|---|---|---|
| S30300 | 303 | 0.15 | 2.00 | 0.20 | 0.15 min | 1.00 | 17.0–19.0 | 8.0–10.0 |
BUnless otherwise indicated, a grade designation originally assigned by the American Iron and Steel Institute (AISI).
CMaximum unless otherwise noted.
ASTM A582 / A582M Mechanical Properties
| Types | Condition | Brinell Hardness A (HBW) |
|---|---|---|
| All (except 440F, 440FSe and S18235) | A | 262 max |
ASizes below approximately 1 in. [25 mm] cross section may be tensile tested and converted to hardness per Test Methods and Definitions A370.
ASTM A582 / A582M Condition Identification
| Type | Condition A (Annealed) |
Condition T (Intermediate Temper) |
Condition H (Hard Temper) |
|---|---|---|---|
| 303 | A | . . . | . . . |