ASTM A320 L7M Threaded Rods for low-temperature service Corrosion-Resistant

Product Description：  Product Name: Alloy-steel fully threaded stud for low-temperature service  Dimensional standard: All bolts comply with ASME B 18.31.2 - 2014   Both L7 and L7M bolts under the ASME A320 standard are alloy steel bolts for low-temperature applications, but L7M is an enhanced version of L7 in terms of corrosion resistance. The main difference lies in its adaptability to specific harsh environments, particularly those containing hydrogen sulfide, where its corrosion resistance is improved. Both are made of alloy steel and undergo heat treatment, making them suitable for extreme climates and chemical media, ensuring the stability and safety of equipment in high or low temperature environments. Except as specified, intentional addition of Bi, Se, Te, and Pb is not allowed. For grade L7M, if it meets the tensile performance requirements specified for the corresponding cross-sectional area, a minimum carbon content of 0.28% is permitted. AISI 4130 or 4130H is allowed. It…

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