China ASTM A193 B6 stud bolt ASTM A194 Grade 6 Nuts manufacturer
A193 B6 stud bolts are a type of high-temperature, corrosion-resistant alloy steel fastener commonly used in chemical, petrochemical, and power generation industries. They are made from ASTM A193 Grade B6 steel, which is a chromium-molybdenum alloy steel with excellent corrosion resistance properties.
A193 Grade B6 is a heat-treated 12% chromium-ferritic magnetic 410 stainless steel with minimum tensile strength requirement of 110 ksi and yield 85 ksi. ASTM A193 specification covers requirements for chemical composition, mechanical properties, hardness, heat-treatment and recommended nuts-washers for Grade B6 Fasteners.
A193 Grade B6 stud bolt Chemical Composition
| Element | Ferritic Steel |
|---|---|
| Chromium Stainless Steel | |
| CompositionA, % | |
| Carbon | 0.08 – 0.15 |
| Manganese | 1.00 |
| Phosphorus | 0.040 max |
| Sulfur | 0.030 max |
| Silicon | 1.00 max |
| Chromium | 11.5 – 13.5 |
A: The intentional addition of Bi, Se, Te, and Pb is not permitted.
A193 Grade B6 stud bolt Mechanical Properties
| Diameter, inch. | Tensile Strength, min, ksi | Yield Strength, min, 0.2% offset, ksi | Elongation in 4D, min, % | Reduction of Area, min, % | Hardness, max |
|---|---|---|---|---|---|
| up to 4, inclusive | 110 | 85 | 15 | 50 | Not Defined |
Heat Treatment: Quenched & Tempered at 1100º F minimum.
Recommended Nuts & Washers for A193 Grade B6 stud bolt
| Nut Specification | Washer Specification |
|---|---|
| ASTM A194 Grade 6 | SS 410 |
A193 B6 stud bolts are typically heat treated to achieve the desired mechanical properties and are available in various sizes and lengths to accommodate different applications. They are often used in high-temperature and high-corrosion environments and provide excellent resistance to stress corrosion cracking and pitting corrosion. It’s important to ensure that the stud bolts are installed and torqued correctly to ensure optimal performance and safety in the application.