Anyang Longteng Heat Treatment Material Co., Ltd is a leading manufacturer and supplier of heat-treated stud bolts, providing 8.8, 9.8, 10.9, 12.9 property class stud bolts. Threaded full length B7 stud bolts are available here. ASTM A193 B7 studs are alloy steel bolting materials and fasteners which makes studs suitable for high temperature and high-pressure application.
We manufacture stud bolts among our range between 30mm to 80mm. We also manufacture any custom size as per customers requirement.
| Element | B7 (AISI 4140) |
|---|---|
| Carbon | 0.38 – 0.48% |
| Manganese | 0.75 – 1.00% |
| Phosphorus, max | 0.035% |
| Sulfur, max | 0.040% |
| Silicon | 0.15 – 0.35% |
| Chromium | 0.80 – 1.10% |
| Molybdenum | 0.15 – 0.25% |
ASTM A193 Grade B7
A heat treated chromium-molybdenum steel widely used for high-temperature service
A193 Recommeded Hardware: Nuts A194 Grade 2H heavy Nuts
Post time: Dec-23-2020