C1050 C1074 C1095 is a high-carbon, cold rolled steel containing approximately more than 0.50% -1.05% carbon that can be annealed or hardened by heat treatment to a maximum hardness of approximately Rockwell C 55. 

We produce spring steel strip for wiper blades use, instead of steel wire, in material grades spring steel ck67,sk5. Usual size is 0.8mm x 7mm and 0.8mm x 14mm in the production lines. Edge is treated with slitting, no burr. During the heat-treatment, the hardness is controlled between 45-50HRC, tolerance +/-2HRC for one coil. Coil type can be ribbon wound or Jumbo wound. We also accept other size if customers require.

We produce spring steel strip for wiper blades use, instead of steel wire, in material grades spring steel ck67,sk5. Usual size is 0.8mm x 7mm and 0.8mm x 14mm in the production lines. Edge is treated with slitting, no burr. During the heat-treatment, the hardness is controlled between 45-50HRC, tolerance +/-2HRC for one coil. Coil type can be ribbon wound or Jumbo wound. We also accept other size if customers require.

We produce spring steel strip for wiper blades use, instead of steel wire, in material grades spring steel ck67,sk5. Usual size is 0.8mm x 7mm and 0.8mm x 14mm in the production lines. Edge is treated with slitting, no burr. During the heat-treatment, the hardness is controlled between 45-50HRC, tolerance +/-2HRC for one coil. Coil type can be ribbon wound or Jumbo wound. We also accept other size if customers require.