UA-61874121
Tool Steel Manufacturer, and Special Steel Stockholder
Call Us: +86-711-2390106

Spring Steel Flat Bar

Spring Steel Flat Bar spring steel Spring Steel Flat Bar Spring Steel Flat Bar

Spring Steel Flat Bar

Spring Steel Flat Bar p2 spring steel Spring Steel Flat Bar Spring Steel Flat Bar p2

Spring Steel Flat Bar p2

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

GB ASTM JIS ISO DIN BS ANFR GOST
65# 1065 / TypeDC,SC CK67 060A67 XC65 65
70# 1070 / TypeDC,SC / 070A72 XC70 70
85# 1086 SUP3 TypeDC,SC CK85 060A86 XC85 85
65Mn 1066 / / / 080A67 / 65Γ
60Si2Mn 9260 SUP6,SUP7 61SiCr7 60SiCr7 Z51A60 60Si7 60C2
60Si2CrA 9254 SUP12 55SiCr63 / / / 60C2XA
55CrMnA 5155 SUP9 55Cr3 55Cr3 525A58 55Cr3 /
60CrMnBA 51B60 SUP11A 60CrB3 / / / 55XΓP
60CrMnMoA 4161 SUP13A 60CrMo33 60CrMo4 705A60 / /
50CrVA 6150 SUP10A 51CrV4 50CrV4 735A51 51CrV4 50CrΦA

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 Grade C Mn Si P S Cr Ni B Cu Mo V
65# 0.62-0.70 0.50-0.80 0.17-0.37 0.035 max 0.035 max 0.25 max 0.25 max / 0.25 max / /
70# 0.62-0.75 0.50-0.80 0.17-0.37 0.035 max 0.035 max 0.25 max 0.25 max / 0.25 max / /
85# 0.82-0.90 0.50-0.80 0.17-0.37 0.035 max 0.035 max 0.25 max 0.25 max / 0.25 max / /
65Mn 0.62-0.70 0.90-1.20 0.17-0.37 0.035 max 0.035 max 0.25 max 0.25 max / 0.25 max / /
60Si2Mn 0.56-0.64 0.70-1.00 1.50-2.00 0.035 max 0.035 max 0.35 max 0.25 max / 0.25 max / /
60Si2CrA 0.56-0.64 0.40-0.70 1.40-1.80 0.025 max 0.025 max 0.70-1.00 0.25 max / 0.25 max / /
55CrMnA 0.52-0.60 0.65-0.95 0.17-0.37 0.025 max 0.025 max 0.65-0.95 0.35 max / 0.25 max / /
60CrMnBA 0.56-0.64 0.70-1.00 0.17-0.37 0.025 max 0.025 max 0.70-1.00 0.35 max 0.0005-0.0040 0.25 max / /
60CrMnMoA 0.56-0.64 0.70-1.00 0.17-0.37 0.025 max 0.025 max 0.70-0.90 0.35 max / 0.25 max 0.25-0.35 /
50CrVA 0.46-0.54 0.50-0.80 0.17-0.37 0.025 max 0.025 max 0.80-1.10 0.35 max / 0.25 max / 0.10-0.20

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

Steel Grade Tensile Strength Rm (Mpa) Yield Strength Rp0.2 (Mpa) Elongation A5 (%) Area Reduction Ratio C (%)
65# 980 min 785 min 9 min 35 min
70# 1030 min 835 min 8 min 30 min
85# 1130 min 980 min 6 min 30 min
65Mn 980 min 785 min 8 min 30 min
60Si2Mn 1275 min 1180 min 5 min 25 min
60Si2CrA 1765 min 1570 min 6 min 20 min
55CrMnA 1225 min 1080 min 9 min 20 min
60CrMnBA 1225 min 1080 min 9 min 20 min
50CrVA/td> 1275 min 1130 min 10 min 40 min

Heat Treatment

Steel Grade Quenching Temperature (°C) ( Media Tempering Temperature (°C)
65# 840 oil 500
70# 830 oil 480
85# 820 oil 480
65Mn 830 oil 540
60Si2Mn 870 oil 480
60Si2CrA 870 oil 420
55CrMnA 830-860 oil 460-510
60CrMnBA 830-860 oil 460-520
50CrVA 850 oil 500

Mill′s test certificate:

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