King Steel Corporation is a trusted U.S.-based supplier specializing in steel bar, steel wire, and steel wire rod products. Since our founding over 50 years ago, we’ve developed partnerships with trusted steel mills across the United States and around the world. As a world-class source, you can expect competitive prices, delivery flexibility, and exceptional customer service, plus in-house capabilities including quenching and tempering, machining, just-in-time delivery support, and transloading.
Our team can process chromium-molybdenum steel to meet A193 Grade B7 requirements for high-strength bolting applications. Diameters are available up to 15”. Mechanical properties, including yield and tensile strength, vary by diameter. MTRs are available upon request.
A193 Grade B7 is not recommended for corrosive requirements without an added coating.
| Carbon | 0.37-0.49% |
| Manganese | 1.10% (max) |
| Phosphorus | 0.035% (max) |
| Sulfur | 0.040% (max) |
| Silicon | 0.15-0.35% |
| Chromium | 0.75-1.20% |
| Molybdenum | 0.15-0.25% |
| Grade | Condition | Tensile Strength | Yield Strength | Hardness |
|---|---|---|---|---|
| B7 | Quenched & Tempered | Varies based on diameter, 100-125 ksi | Varies based on diameter, 75-105 ksi | 35 HRC |
Let the experts at King Steel show you how we can help take your business from good to great.
