M4-M64 Alloy B7 round head bolt nut and washer manufacturer
ASTM A193 B7 For high temperature applications, B7 steel is in high demand due to its tensile strength and excellent heat resistance. It is used in high temperature and high pressure applications, including industrial and work where high temperatures and pressures are reached. Pressure vessels and valves in the oil and gas industry, chemical and petroleum facilities, and pipe flange connections are typical applications for the B7.
ASTM A193 B7 is a specification for bolted joints for medium to high temperature applications. It is a heat treated chromium molybdenum steel and is considered for applications up to 450¡ã Celsius (840¡ã Fahrenheit).
ASTM A193 is used extensively in petroleum and chemical construction applications. ASTM standards cover alloy steel and stainless steel bolting materials for high temperature or high pressure service. This specification covers fasteners for pressure vessels, valves, flanges and fittings. While this material is typically available in National Coarse (UNC) pitch, if used in conventional applications, threads are specified at 8 threads per inch (tpi) for threads greater than 1 inch in diameter.