In Stock — Houston, TX & Indiana | Immediate Delivery
Overview
Grade B7 is the industry standard for high-pressure, high-temperature bolting, delivering strength and performance where failure is not an option.
Mechanical Properties
| Property | Requirement |
|---|---|
| Tensile Strength | 125 ksi min |
| Yield Strength | 105 ksi min |
| Elongation | 16% min |
| Hardness | 24–35 HRC |
Chemical Composition (Typical)
| Element | % |
|---|---|
| Carbon (C) | 0.37 – 0.49 |
| Manganese (Mn) | 0.65 – 1.10 |
| Phosphorus (P) | 0.035 max |
| Sulfur (S) | 0.040 max |
| Silicon (Si) | 0.15 – 0.35 |
| Chromium (Cr) | 0.75 – 1.20 |
| Molybdenum (Mo) | 0.15 – 0.25 |
Applications
- Oil & gas / upstream & downstream
- Refineries & petrochemical plants
- Pressure vessels & heat exchangers
- Flanges, valves, and fittings
- Power generation
Value-Added Services
- Cut-to-length stud production
- Kitting & job packaging
- Certification packages (MTRs included)
- Third-party inspection available
- Expedited shipping nationwide
Related Specs We Support
- ASTM A320 Grade L7
- API 20E / 20F (including BSL requirements)
- L7 / L43 alternatives for temperature & service conditions
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