Good translation Metal Products (Shanghai) spring steel companies (domestic spring steel / spring steel imports) SUP10 spring steel / SUP10 steel / SUP10 SUP10 steel bar coil / SUP10 steel / SUP10 steel / SUP10 steel (good translation Metal Products (Shanghai ) Co., Ltd.) 
 Material Name: SUP10 spring steel 
 Executive Standard: JIS G4801-2005 
 China Standard: GB / T 3077-1999 
 American Standard: A29M: 2005 
 ● Features and application: 
 Good mechanical properties and process performance, high hardenability, adding vanadium to steel the grain refinement, reduce heat sensitivity, increased strength and toughness, high fatigue strength, yield ratio is high, but poor welding cold plastic deformation due to the low. Is a relatively high spring, as a large section of the important spring and high-load operating temperature <300 ℃ of the valve spring, piston spring, valve spring. 
 ● Chemical Composition: 
 Carbon C: 0.47 ~ 0.55 
 Si Si: 0.15 ~ 0.35 
 Manganese Mn: 0.65 ~ 0.95 
 Sulfur S: ≤ 0.030 
 Phosphorus P: ≤ 0.030 
 Chromium Cr: 0.80 ~ 1.10 
 Ni-Ni: ≤ 0.35 
 Copper Cu: ≤ 0.25 
 Vanadium V: 0.15 ~ 0.25 
 ● Mechanical Properties: 
 Tensile strength σb (MPa): ≥ 1274 (130) 
 Yield strength σs (MPa): ≥ 1127 (115) 
 Elongation δ5 (%): ≥ 10 
 Reduction of area ψ (%): ≥ 40 
 Hardness: hot, ≤ 321HB; cold-drawn + heat treatment, ≤ 321HB 
 ● Heat treatment and microstructure specifications: 
 Standard heat treatment: quenching 850 ℃ ± 20 ℃, oil cooling; tempering 500 ℃ ± 50 ℃ (special needs, ± 30 ℃). 
 ● Delivery status: hot-rolled steel to heat treatment or heat treatment delivery, cold-drawn steel with heat treatment delivery. 
 The company offers domestic and imported varieties of spring steel material, complete specifications, special specifications can be customized processing. Division I and to provide original certificates, material certificates (chemical mechanical properties) and the like arguments! Please note that request! Users are welcome to inquire Order, the Company will be free shipping! Other materials, if necessary, good translation 
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 (Good translation Metal Products (Shanghai) Co., Ltd. published) 
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