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Shanghai Jingteng Metal Group Co., Ltd.

   
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SUP10

SUP10

SUP10 Spring Steel
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SUP10 Spring Steel



Material Name


Material Name: SUP10

Characteristics and scope of application


With good mechanical properties and process performance, quenching high, adding vanadium steel grain refinement, reducing overheating sensitivity, improves the strength and toughness, has high fatigue strength, yield ratio is relatively high, but the welding of poor, cold for a higher level of springs is plastic deformation of low.Sup10 used as a larger cross section of the high load important spring and working temperature < 300 DEG C valve spring, spring piston, the safety valve spring.


Chemical Composition


C Si Mn V
 S P Cr Ni Cu
0.47-0.55
 0.15-0.35 0.65~0.95 0.15-0.25
 Max 0.03 Max 0.03
 0.80-1.10 Max 0.35 Max 0.25

Mechanical Property


Tensile strength
σb (MPa) 		Yield Strength
σs 0.2 (MPa)
Elongation
δ 5 (％)
reduction of crosssection area
ψ (％)
Hardness
(HB)
Min 1274 Min 1127 Min 10 Min 40
   Max 321

specification of heat treatment and metallurgical structure


Specification of heat treatment : hardnening 850 + 20℃, oil cooling; tempering 500 + 50 ℃ (special needs, + 30℃)
Metallurgical Structure: tempered martensite

Delivery State


Hot rolled steel with heat treatment or heat treatment delivery, cold drawn steel to heat treatment delivery.