ASTM A193 Grade B7M Bolts Suppliers, Manufacturers
A193 Grade B7M Bolts are manufactured from AISI 4140/4142 low Carbon Alloy Steel Grades followed by quencing & tempering. We manufacture these Bolts with great precision & Quality. These grade bolts are also denoted as Grade 7 Bolts,B7 Bolts etc. We Also offer B7 Studs/B7 threaded bars/B7 Threaded rods.TorqBolt Stocks & Supply these Bolt Fasteners in various sizes & Coatings.
For quick Quote on A193 Grade B7M Bolts/Studs, please contact our Sales team.
Related keywords for ASTM A93 B7M Bolts : A193 B7M Bolts,Grade B7M Bolts,A193 Grade B7M,SA 193 B7M bolts,B7M Studs,B7M Studs Material,B7M Threaded Rod,B7M Threaded Bar etc
| B7 | Alloy steel, AISI 4140/4142 quenched and tempered |
|---|---|
| B8 | Class 1 Stainless steel, AISI 304, carbide solution treated. |
| B8M | Class 1 Stainless steel, AISI 316, carbide solution treated. |
| B8 | Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened |
| B8M | Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened |
| B16 | A heat-treated chromium-molybdenum-vanadium steel for high-pressure, high-temperature service. |
Mechanical Properties
Bolt -Grade Identification Markings
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
|---|---|---|---|---|---|
| B7M | Up to 2-1/2 | 125 | 105 | 16 | 50 |
| 2-5/8 - 4 | 115 | 95 | 16 | 50 | |
| 4-1/8 - 7 | 100 | 75 | 18 | 50 | |
| B8 Class 1 | All | 75 | 30 | 30 | 50 |
| B8M Class 1 | All | 75 | 30 | 30 | 50 |
| B8 Class 2 | Up to 3/4 | 125 | 100 | 12 | 35 |
| 7/8 - 1 | 115 | 80 | 15 | 35 | |
| 1-1/8 - 1-1/4 | 105 | 65 | 20 | 35 | |
| 1-3/8 - 1-1/2 | 100 | 50 | 28 | 45 | |
| B8M Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 |
| 7/8 - 1 | 100 | 80 | 20 | 45 | |
| 1-1/8 - 1-1/4 | 95 | 65 | 25 | 45 | |
| 1-3/8 - 1-1/2 | 90 | 50 | 30 | 45 | |
| B16 | Up to 2-1/2 | 125 | 105 | 18 | 50 |
| 2-5/8 - 4 | 110 | 95 | 17 | 45 | |
| 4-1/8 - 7 | 100 | 85 | 16 | 45 |
Material Chemical Composition
| Element | B7 (AISI 4140) | B8 (AISI 304) | B8M (AISI 316) | B16 (AISI 4140) |
|---|---|---|---|---|
| Carbon | 0.37 - 0.49% | 0.08% max | 0.08% max | 0.37 - 0.49% |
| Manganese | 0.65 - 1.10% | 2.00% max | 2.00% max | 0.65 - 1.10% |
| Phosphorus, max | 0.035% | 0.045% | 0.045% | 0.035% |
| Sulfur, max | 0.040% | 0.030% | 0.030% | 0.040% |
| Silicon | 0.15 - 0.35% | 1.00% max | 1.00% max | 0.15 - 0.35% |
| Chromium | 0.75 - 1.20% | 18.0 - 20.0% | 16.0 - 18.0% | 0.75 - 1.20% |
| Nickel | 8.0 - 11.0% | 10.0 - 14.0% | ||
| Molybdenum | 0.15 - 0.25% | 2.00 - 3.00% | 0.15 - 0.25% |
Recommended Nuts,Bolts & Washer
| Bolt Grade | Nuts | Washers |
|---|---|---|
| B7M | A194 Grade 2HM | F436 |
| B8 Class 1 | A194 Grade 8 | SS304 |
| B8M Class 1 | A194 Grade 8M | SS316 |
| B8 Class 2 | A194 Grade 8 | SS304 |
| B8M Class 2 | A194 Grade 8M | SS316 |
Astm A193 Grade B7m Studs Bolt Related Products
| Sa193 B7M Specification Bolts | A193 Gr B7M Socket Head Cap Screws |
| Sa193 Gr B7M Stud Bolts | Asme Sa 193 B7M Socket Head Cap Screws |
| Asme Sa 193 Grade B7M Bolting | Astm A193 Gr B7M Threaded Rods |
| Astm A193 Gr B7M Bolting | Grade B7M Hex Cap Screws |
| Asme Sa 193 Gr B7M Square Bolts | Astm A193 Gr B7M Stud Bolt |
| Asme Sa 193 Gr B7M Square Bolts | Grade B7M Bolting |
| Astm A193 Grade B7M Socket Head Cap Screws | Astm A193 B7M Stud Bolts |
| Astm A193 Gr B7M Square Bolts | A193 Gr B7M Bolting |
| A193 B7M Specification Studs | Asme Sa 193 B7M Screws |
| A193 Gr B7M Square Bolts | Sa193 B7M Specification Studs |
| Astm A193 B7M Hex Cap Screws | Asme Sa 193 Gr B7M Stud Bolt |
| Astm A193 Gr B7M Heavy Hex Screws | Asme Sa 193 Grade B7M Heavy Hex Screws |
| Astm A193 Grade B7M Heavy Hex Screws | A193 B7M Specification Hex Cap Screws |
| Asme Sa 193 Gr B7M Bolts | Astm A193 Gr B7M Bolts |