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ASTM A320 L7 Threaded Rods
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Struggling to find the right standard part? Let us engineer it. From automotive bolts to unique shaped components, we specialize in custom runs based on your samples or drawings.

ASTM A320 L7 Threaded Rods

L7 is a low-temperature chromium molybdenum alloy steel (same as B7 material, AISI 4140/4142), Quenching and tempering to ensure low-temperature toughness. Hardness: HRC 24-35 (HB 248-341); Strength: Tensile strength ≥ 862MPa, yield ≥ 724MPa, elongation ≥ 16%. The core advantage is excellent low-temperature impact toughness at -46 ℃, without brittle fracture. Specially designed for low-temperature conditions * *: LNG, liquid nitrogen, refrigeration equipment, low-temperature pressure vessels, chemical low-temperature pipelines, offshore platform low-temperature flanges, ensuring connection safety and reliability in sub zero environments.

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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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