Gold Member Since 2015
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Huangshi Chengquan Metal Material Co., Ltd.

Spring Steel, Steel, Spring Steel Flat Bar manufacturer / supplier in China, offering Spring Steel Flat Bar, ASTM S6 Cold Work Tool Steel Round Bar, DIN1.2824 70mnmocr8 Alloy Cold Work Tool Steel and so on.

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Spring Steel Flat Bar

FOB Price: US $300-1,000 / Ton
Min. Order: 1 Ton
Min. Order FOB Price
1 Ton US $300-1,000/ Ton
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Production Capacity: 5000tons/Year
Transport Package: Seaworth Packing
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: SUP6, SUP7, SUP9
  • Standard: AISI, ASTM, DIN, JIS, GB
  • Composition: Ferrous Steel Scrap
  • Shape: Round,Flat or Square
  • Special Use: Spring Steel
  • Trademark: CHENGQUAN
  • Origin: Huangshi, Hubei
  • Type: Flat
  • Steel Grade: Sup6,Sup7,Sup9
  • Technique: Hot Forged,or Hot Rolled
  • Surface Treatment: Black Surface
  • Application: Spring Steel
  • Specification: Round Bar: Dia12~420mm Flat Bar: 2~420 X 30~1500mm
  • HS Code: 7228100000
Product Description

°Description

Spring steel refers to steel due to the elasticity in the quenched and tempered condition, and specifically for the manufacture of springs and elastic components. Spring steel depends on its ability to elastically deform, i.e., within the prescribed range, the ability to withstand a certain elastic deformation so that the load does not occur in the permanent deformation after the load is removed.

Application

Automobile plate spring

Size Ranges

Width: 40mm-150mm; Thickness: 4mm-60mm

All Grades Comparison

GBASTMJISISODINBSANFRGOST
65#1065/TypeDC,SCCK67060A67XC6565
70#1070/TypeDC,SC/070A72XC7070
85#1086SUP3TypeDC,SCCK85060A86XC8585
65Mn1066///080A67/65Γ
60Si2Mn9260SUP6,SUP761SiCr760SiCr7Z51A6060Si760C2
60Si2CrA9254SUP1255SiCr63///60C2XA
55CrMnA5155SUP955Cr355Cr3525A5855Cr3/
60CrMnBA51B60SUP11A60CrB3///55XΓP
60CrMnMoA4161SUP13A60CrMo3360CrMo4705A60//
50CrVA6150SUP10A51CrV450CrV4735A5151CrV450CrΦA

Quality Standard

GB/T 1222 Spring Steels
JIS G 4801 Spring Steels
EN 10089 Hot rolled steels for quenched and tempered springs

Chemical Composition(%)

Steel GradeCMnSiPSCrNiBCuMoV
65#0.62-0.700.50-0.800.17-0.370.035 max0.035 max0.25 max0.25 max/0.25 max//
70#0.62-0.750.50-0.800.17-0.370.035 max0.035 max0.25 max0.25 max/0.25 max//
85#0.82-0.900.50-0.800.17-0.370.035 max0.035 max0.25 max0.25 max/0.25 max//
65Mn0.62-0.700.90-1.200.17-0.370.035 max0.035 max0.25 max0.25 max/0.25 max//
60Si2Mn0.56-0.640.70-1.001.50-2.000.035 max0.035 max0.35 max0.25 max/0.25 max//
60Si2CrA0.56-0.640.40-0.701.40-1.800.025 max0.025 max0.70-1.000.25 max/0.25 max//
55CrMnA0.52-0.600.65-0.950.17-0.370.025 max0.025 max0.65-0.950.35 max/0.25 max//
60CrMnBA0.56-0.640.70-1.000.17-0.370.025 max0.025 max0.70-1.000.35 max0.0005-0.00400.25 max//
60CrMnMoA0.56-0.640.70-1.000.17-0.370.025 max0.025 max0.70-0.900.35 max/0.25 max0.25-0.35/
50CrVA0.46-0.540.50-0.800.17-0.370.025 max0.025 max0.80-1.100.35 max/0.25 max/0.10-0.20

Mechanical Properties(Quenched and Tempered Condition)(T=20°C if not differently stated)

Steel GradeTensile Strength Rm (Mpa)Yield Strength Rp0.2 (Mpa)Elongation A5 (%)Area Reduction Ratio C (%)
65#980 min785 min9 min35 min
70#1030 min835 min8 min30 min
85#1130 min980 min6 min30 min
65Mn980 min785 min8 min30 min
60Si2Mn1275 min1180 min5 min25 min
60Si2CrA1765 min1570 min6 min20 min
55CrMnA1225 min1080 min9 min20 min
60CrMnBA1225 min1080 min9 min20 min
50CrVA/td>1275 min1130 min10 min40 min

Heat Treatment

Steel GradeQuenching Temperature (°C) (MediaTempering Temperature (°C)
65#840oil500
70#830oil480
85#820oil480
65Mn830oil540
60Si2Mn870oil480
60Si2CrA870oil420
55CrMnA830-860oil460-510
60CrMnBA830-860oil460-520
50CrVA850oil500

Mill's test certificate:

EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.
Spring Steel Flat Bar
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