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These strips are stocked in different width, finish and different hardness range between 40 50 HRC (Std. Size of Hardened and Tempered Spring Steel Strips) in Grey, Bright polished, Blue polished surface finish.
Chemical Composition: C: 0.75 - 0.90%
  Mn: 0.50 - 0.90%
  Si: 0/1 - 0.35
  S&P: 0.04% Max
These strips can be sheared with low burrs to customer’s width requirements. On request and short lead time tailor made Strips can be produced as per customers requirement of hardness, width surface finish & different edges. Please check for Minimum economic batch quantity & lead time.

Standard Sizes of Hardened and Tempered Spring Steel Strips.
Size Hardness Surface Finish End Use
235 x 3.0 mm 42-44 Grey  
311 x 2.60 mm 42-44 Bright   
330 x 2.00 mm 44-47 Bright & Grey  
190 x 2.00 mm 44-47 Bright  
152.4 x 2.00 mm 48-50 Bright  
152.4 x 1.80 mm 48-50 Bright  
152.4 x 1.60 mm 44-47 Bright  
152.4 x 1.50 mm 48-50 Bright  
152.4/ 127 x 1.40 mm 44-47 Bright  
152.4/127 x 1.20 mm 44-47 Bright  
152.4/200 x 1.00 mm 44-47 Bright  
152.4 x 0.90mm 44-47 Bright  
200/152.4 x 0.80mm 44-47 Bright  
152.4 x 0.70mm 44-47 Bright  
165 x 0.60mm 44-47 Bright & Blue  
101.6 x 0.55 mm 44-47 Bright & Blue  
152.4/101.6 x 0.50 mm 44-47 Bright  
101.6 x 0.50 mm 44-47 Blue  
152.4 x 0.45 mm 44-47 Bright  
101.6 x 0.45 mm 48-50 Blue  
150 x 0.40 mm 48-50 Bright  
101.6 x 0.40 mm 48-50 Blue  
150 x 0.30 mm 48-50 Bright  
101.6 x 0.30 mm 48-50 Blue  
150 x 0.25 mm 48-50 Bright  
101.6 x 0.25 mm 48-50 Blue  
150 x 0.20 mm 48-50 Bright  
101.6 x 0.20 mm 48-50 Blue  

These strips are widely used for making Coil Springs, Rulers, Saws, Masionery tools, Jungle tools, Saw Steel, Steel for Springs, Steel for masonry tools and Spring Steel parts which do not require severe bending or forming.

This grade compares well with
AISI 1080/1085
CK 75/80
HC-14/EN42J, DIN 17200
JIS-S 80C & Sup 3
Blue tempered spring steel
Hardened and tempered spring steel strip