Import Bimetal Strip — Buy in wholesale FOB from Supplier in China

This copper-nickel bimetal strip consists of a Cu-Ni alloy layer bonded to a thermal expansion metal substrate, engineered for temperature-responsive deflection in control instruments. The composite construction exploits differential thermal expansion coefficients between the two bonded metals, producing predictable curvature change across a defined temperature span. Available in coil or sheet form, it is packaged for export with standard international shipping protection. The supplier specifies custom lengths and widths on request, though buyers should confirm current dimensional availability directly.

The copper-nickel facing provides corrosion resistance and stable electrical properties, while the backing metal (typically iron-nickel or steel alloy) contributes controlled expansion characteristics. Typical industry bimetal combinations achieve deflection rates of 13-25 x 10^-6 per Kelvin, though the supplier does not publish a specific coefficient for this grade. Bond integrity is critical: delamination or residual stress from rolling would compromise calibration stability. Standard surface finish is bright annealed, with edge trimming to prevent stress concentrators in coiled applications. Relevant industry standards include ASTM B122 for copper-nickel alloys and DIN 1715 for thermostatic bimetals.

Primary applications span bimetallic thermometers, thermostat snap-action discs, thermal overload relays, and HVAC control systems. Buyers include instrument manufacturers, white-goods producers, and energy-sector control-system integrators. The supplier, Wuxi Xinxinglai Steel Trade Co., Ltd, operates from Jiangsu province with imported supplier tier classification and harbor trust tier, indicating unverified verification status and zero recorded response rate. No MOQ, price band, or lead time is stated in the source data. Buyers should negotiate trade terms, Incoterms, and payment conditions directly, and request material certification and sample deflection testing before batch commitment.

Wuxi Xinxinglai Steel Trade Co., Ltd is located at Room 1207-1209, No 6, Xihu Dong Road, Wuxi 214011, Jiangsu Province, China. The supplier holds an imported tier classification and harbor trust tier on the platform, with a recorded response rate of 0.00 percent and zero average response hours. These signals indicate limited or no engagement through platform messaging channels, and buyers should treat initial contact with appropriate verification steps rather than assumed reliability.

The company operates as a steel trade business in Wuxi, a major stainless and special steel distribution hub near Shanghai with established logistics networks. The listing provides no information about factory ownership, production capacity, years in operation, workforce size, revenue, or client references. No certifications, audit reports, or quality management systems are named. Buyers should conduct independent due diligence, request business registration documents, and verify the supplier's physical premises and quality control capabilities before committing to orders.