Find typical requirement for ASTM A193 Grade B8T Chemical Composition with allowable variation. Chemical analysis of finished products manufactured to ASTM A193 Grade B8T specification must comply with below requirement. This typical composition is in line with the AISI 4140 / AISI 4142 alloy steel used as a raw material to produce B7 bolts, studs and other external threaded fasteners.
| Element | Austenitic Stainless Steel |
|---|---|
| AISI 321 / 321H | |
| CompositionA, % | |
| Carbon | 0.08 max |
| Manganese | 2.00 |
| Phosphorus | 0.045 max |
| Sulfur | 0.030 max |
| Silicon | 1.00 max |
| Chromium | 17.00 - 19.00 |
| Nickel | 9.00 - 12.00 |
| Titanium | 5 x Carbon Content - 0.70 |
| Nitrogen | 0.10 max |
AThe intentional addition of Bi, Se, Te, and Pb is not permitted.