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c75s spring steel carbon steel with high strength

c75s spring steel is a low alloy, carbon steel material with carbon content  0.72-0.84. This material can be heat-treated to the required tensile strength, operated by annealing process (CRCA) or hardened and tempered condition (Q+T). Process engineering of heat treament is very vital to the inherent quality of spring steel strip. The edge of C75S spring steel can be rounded or slit.  Underd continous hardened (810-840`C) and tempered (300-500`c) facility, the finish surface can be blue,yellow,black,etc..
c75s spring steel carbon steel with high strength
c75s spring steel is a low alloy, carbon steel material with carbon content  0.72-0.84. This material can be heat-treated to the required tensile strength, operated by annealing process (CRCA) or hardened and tempered condition (Q+T). Process engineering of heat treament is very vital to the inherent quality of spring steel strip. The edge of C75S spring steel can be rounded or slit.  Underd continous hardened (810-840`C) and tempered (300-500`c) facility, the finish surface can be blue,yellow,black,etc..
 
Carbon 0.72-0.80%
Silicon 0.15-0.35%
Manganese 0.60-0.90%
Sulphur 0.035% max
Phosphorus 0.035% max
 
We also supply other following materials in hardened and tempered condition:

Delivery condition (strip,coil,sheet)

Grade based on DIN Standard

High quality heat treating steel strip, coil, sheet

supply capacity and condition

Hardness<20HRC

Hardness 29-55HRC

annealed

hardened and tempered

thickness

Width

thickness

Width

High carbon steel

CK50,CK55, CK60,CK67,

CK70,CK75,C75Cr1, sk5

0.10-6.0mm

2mm-1250mm

0.10-6.0mm

2.0mm-500mm

Alloy spring steel

50CrV4, 51CrV4, 60Si2Mn

0.10-6.0mm

2mm-1250mm

0.10-6.0mm

2.0mm-500mm

Stainless spring steel

3Cr13-6Cr13

0.10-6.0mm

2mm-1250mm

0.10-6.0mm

2.0mm-500mm

Edge process

slit edge; both rounded; one side round, one side slit; square etc

Finish surface

polished (blue, yellow, white, grey-blue, black, bright) or Nature etc

Tolerance

thickness +/-0.03mm max; width +/-0.3mm max 

Physical Property

tensile strength - 450-1850N/mm2

 
c75s spring steel carbon steel with high strength are packed suitable for sea worthy exporting as the photo below,
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