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ASTM A193 B7 Threaded Rods
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ASTM A193 B7 Threaded Rods

B7 is chromium molybdenum alloy steel (AISI 4140/4142, nearly 42CrMo), which has undergone quenching and tempering treatment. Hardness: HRC 26-35 (HB 285-341); Strength: Tensile strength ≥ 860MPa, yield strength ≥ 725MPa. Excellent high-temperature creep resistance and relaxation resistance, with a temperature resistance of up to 480 ℃. Mainly used in high temperature and high pressure scenarios: petrochemical industry, power boilers, pressure vessels, flange connections, steam pipelines, oil and gas wellhead equipment, often equipped with A194 2H nuts to meet the fastening and sealing requirements of heavy load and high temperature conditions.

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Shanghai Soverchannel Industrial Co., Ltd.
Shanghai Soverchannel Industrial Co., Ltd. is a manufacturer integrating R&D, production, and sales, focusing on providing high-precision non-standard and standard fastening solutions for customers. The company has been deeply engaged in the automotive fastener industry for many years. It owns its own manufacturing plant, Nantong Jinzhai Hardware Co., Ltd., and has accumulated solid technical strength and rigorous quality control experience.

Our main products cover various high-quality bolts, nuts, steel processing parts, welding components, and customized special-shaped parts. Relying on advanced production equipment and a full-process inspection system, we are not only capable of mass-producing high-standard parts but also excel in customizing non-standard bolts and complex special-shaped components according to specific customer requirements. Over the years, we have always adhered to technology-driven development and earned trust through quality, becoming a reliable partner for numerous customers in the automotive and industrial fields.
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