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

The Blue 65mn Rolling Shutter Spring Steel Strip from Taian Henson Metal Co., Ltd. is a cold-rolled, high-carbon manganese steel strip designed for rolling shutter and industrial door applications. It is supplied in blue-passivated finish for temporary corrosion protection, with the 65Mn grade delivering a typical tensile strength of 980 MPa and yield strength of 785 MPa, making it suitable for high-cycle flexing in shutter mechanisms. The material conforms to GB/T 1591 standards for spring steel, with exact thickness and width dimensions provided per order.

This steel strip is produced from 65Mn alloy, a standard manganese-silicon spring steel known for its hardenability and wear resistance. Typical industry specifications include a carbon content of 0.62 to 0.70%, manganese at 0.90 to 1.20%, and silicon at 0.17 to 0.37%, with phosphorus and sulfur limited to 0.035% each. The strip is supplied in coil form or cut lengths, with typical thickness tolerances of ±0.05 mm and width tolerances of ±0.1 mm, ensuring consistency for automated shutter assembly lines.

Manufacturers of rolling shutters, garage doors, and industrial closures use this material for its resilience under repeated bending and impact loads. Buyers typically source it in bulk coils with net weights of 1 to 5 tonnes per coil, packaged on wooden pallets for export. Incoterms such as FOB Qingdao or CIF to major ports are common, with lead times of 5 to 7 days for stock sizes. Confirm exact coil dimensions, surface finish, and mechanical test certificates before ordering to match production requirements.

Taian Henson Metal Co., Ltd. is a China-based supplier specialising in spring steel strips for industrial applications. The company is classified as an imported-tier supplier with a harbor trust tier, indicating a baseline level of verification for international trade. While its response rate is currently unrecorded, the supplier’s focus on 65Mn and similar high-carbon steels positions it for buyers requiring consistent material properties for rolling shutter production.

The supplier’s profile does not disclose factory size, annual output, or export history, but its product range is concentrated on cold-rolled steel strips with standard and custom dimensions. Buyers are advised to request third-party inspection reports or mill test certificates to confirm compliance with GB/T 1591 or equivalent standards. The absence of stated certifications or production capacity details means due diligence on material traceability and batch consistency is essential before placing bulk orders.