1) Spring Steel Grades: SK4 etc.

2) Thickness: 0.10mm (0.00394") to 0.16mm (0.0063"). Tolerance: +/-0.01mm, others to customer special requirement.

3) Width: 6mm (0.2362") to 25mm (0.9843"). Tolerance: +/-0.10mm, others to customer special requirement.

4) Standard rigidity of heat treatment: Hardness from HRC39 to HRC60 (370HV to 700HV).

5) Surface Finish: Blue, Dip-blue, Polishing, Bright, Yellow etc.

6) Mechanical Properties: Like Tensile Strength, Yield Strength, Elongation etc., as per Standard or to customer requirement.

7) Edges: Slit Edges, De-burred Edges, Round Edges.

8) Packing: International Standard or to customer requirement.