Import Blue Spring Steel Strip 65mn — Buy in Bulk from Supplier in China

Blue Spring Steel Strip 65Mn is a high-carbon alloy steel designed for applications requiring consistent elasticity and fatigue resistance. This listing specifies thicknesses from 0.08mm to 4.0mm and widths from 3mm to 400mm, with tolerances held to ±0.01mm for thickness and ±0.05mm for width. The material is supplied in slit-edge variants including rounded, one-side-round-one-side-slit, and square edges, with surface finishes ranging from polished blue to black or natural mill finish.

The steel conforms to the 65Mn grade, which is a standard Chinese specification equivalent to SAE 1065 and CK60 in other systems. Tensile strength ranges from 450N/mm² to 1850N/mm² depending on heat treatment and tempering, with hardness levels categorized as below 200HV, 200 - 300HV, or 300 - 550HV. These properties align with typical industrial expectations for spring applications, where controlled yield strength and minimal set under cyclic loading are critical. Surface polish type affects corrosion resistance and lubricity during assembly.

This material is commonly used in precision springs, electrical contacts, clamps, and automotive suspension components. Buyers include manufacturers of industrial machinery, automotive parts, and electronic devices requiring reliable elastic elements. Trade terms are based on standard FOB China port shipping, with packaging in wooden crates or steel bands. MOQ and lead time must be confirmed directly with the supplier, as these vary by order size and finish requirements.

Taian Henson Metal Co., Ltd. is a supplier based in China with verified export experience in spring steel products. The company operates as a direct producer or processor of carbon and alloy steel strips, with focus on precision thickness control and surface finishing. No information is provided on factory size, years in operation, or client list, and response metrics are not available on the platform.

The listing confirms no certifications, no ISO status, and no published production capacity. The supplier's trust tier is marked as harbor, indicating basic compliance with platform verification requirements but no third-party audit data. Buyers should request material test reports and production batch records directly before placing orders.