ASTM A193 Grade B7 Threaded Rods

There is a vast array of screws available, including ASME and ASTM standard high-strength bolts, studs, nuts, and custom-made special fasteners engineered to withstand high pressure, extreme temperatures, and corrosion.

These products are primarily used in industries such as pressure vessel manufacturing, high and medium-pressure pump valves, radiators, petroleum drilling and production equipment, chemical plants, pipeline containers, offshore platforms, and smelting equipment, among others.

Materials commonly used for these products include SA193 B7, B7M, B8, B8M CL1, CL2, B16, L7; SA194 2H, 7, 8M, A307, A320, A325, etc. These specialized materials undergo rigorous heat treatment or solid solution processes to maintain exceptional mechanical properties across a wide temperature range from -196°C to 575°C.

The manufacturing process, testing, and labeling of these products adhere to stringent regulations. For instance, products like SA193 B7 are crafted from chromium-molybdenum alloy steel, surpassing even China's highest-grade 35CRMOA Screw material, which is grade 12.9. SA193 B7 undergoes high-temperature quenching at 860 degrees and high-temperature tempering at 640 degrees to reduce hardness while maintaining a performance level equivalent to 10.9. This significantly enhances the product's toughness, making it adaptable to various working environments and reducing safety risks. Proper labeling, including the manufacturer's mark "AM" and material grade "B7," is mandatory to ensure effective product traceability.

Variations of these products include American Galvanized Full Thread Studs, SA193-B7 Full Thread Studs, Galvanized SA193-B7 Full Thread Studs, and American Galvanized SA193-B7 Full Thread Studs.