Shanghai Jieteng Precision Mold Factory

Shanghai Jingteng Metal Group Co., Ltd.

   
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SUP9

SUP9

SUP9 Spring Steel
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SUP9 Spring Steel



Material Name


Material Name: SUP9
Execution standard: JIS G48001:2005

Characteristics and scope of application


With high strength, plasticity and toughness and hardenability better, overheating sensitivity than low manganese steel, decarburization tendency is smaller than that of silicon manganese steel, tempering brittleness. For vehicle, tractor industry making heavy load, should force larger leaf spring and the diameter of the larger spiral spring.

Chemical Composition


Si V
 S Cr Ni Cu
0.17-0.37 0.10-0.20
 Max 0.030 0.65-0.95 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 1225 Min 1080 Min 9 Min 20
   Max 321

Delivery State


In the heat treatment (quenching, annealing or tempering) or heat treatment delivery, delivery status should be indicated in the contract.