ASTM A320 Grade Class 2 B8M Bolts Suppliers, Manufacturers
A193 Grade B8 Class 1 Bolts are manufactured from AISI 304 Stainless Steel carbide solution treated with Strain Hardening. We manufacture these Bolts with great precision & Quality.Grade B8 Bolts are also called B8 Stainless Steel bolts, B8 Bolts Class 1 Etc.TorqBolt Stocks & Supply these Bolt Fasteners in various sizes & Coatings.
For quick Quote on Grade B8M Bolts/Studs, please contact our Sales team.
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Grade Material
| B8M Class 1 | AISI 316, carbide solution treated |
| B8M Class 2 | AISI 316, carbide solution treated, strain hardened |
Mechanical Properties
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min | Charpy Impact 20-ft-lbf @ temp |
|---|---|---|---|---|---|---|
| B8M Class 1 | All | 75 | 30 | 30 | 50 | N/A |
| B8M Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 | N/A |
| 7/8 - 1 | 100 | 80 | 20 | 45 | N/A | |
| 1-1/8 - 1-1/4 | 95 | 65 | 25 | 45 | N/A | |
| 1-3/8 - 1-1/2 | 90 | 50 | 30 | 45 | N/A |
Material Chemical Composition
| Element | B8M (AISI 316) |
|---|---|
| Carbon | 0.08% max |
| Manganese | 2.00% max |
| Phosphorus, max | 0.045% |
| Sulfur, max | 0.030% |
| Silicon | 1.00% max |
| Chromium | 16.0 - 18.0% |
| Nickel | 10.0 - 14.0% |
| Molybdenum | 2.00 - 3.00% |
Recommended Nuts & Washer
| Bolt Grade | Nuts | Washers |
|---|---|---|
| B8M Class 1 | A194 Grade 8M | SS316 |
| B8M Class 2 | A194 Grade 8M | SS316 |