ASTM A193 B8M Hex Bolts are high strength corrosion resistant hardware that comply with the ASTM A193 specification. This specification applies to various alloy steel bolts, studs and other threaded fasteners intended for use at elevated temperature and pressure conditions like petrochemical, power generation and oil and gas industry environments. The term “B8M” is the steel grade which is determined by its chemical composition and mechanical properties. A193 B8M class 2 Hex Bolts are made of a stainless steel alloy with high strength and molybdenum content which gives them great resistance to corrosion and oxidation at high temperatures. The bolts have a hex head and designed to be capable of withstanding extreme tensile strains as well as having an adequate level of flexibility. Usually, the bolts are brought to temper condition by quenching and tempering process done and further a protective finish might be applied to them to increase their corrosion resistance.
A453 Grade 660 Stud Bolts are a type of alloy steel fastener used in a variety of industries including the oil and gas sector. They are made from an alloy steel that has been heat treated to obtain the required strength. The ASTM A453 660 Stud Bolts grade represents the mechanical properties of the material such as tensile strength and yield strength. For instance, Grade 660 translates to the minimum tensile strength of 690MPa (100 ksi) and the minimum yield strength of 601MPa (87 ksi). Besides, the hardness range of the ASTM A453 Grade 660 Stud Bolts that has been indicated is 270, 321HBW making them suitable for usage in high-temperature operations.
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