Commodity: Cold drawn spring steel wire
1. Material JIS: SUP9; SUP9A; SUP10; SUP7; SUP12; SUP12V; SUP6;SUP7.
SAE: SAE9254; SAE5160;SAE9260;SAE6150.
DIN: 55Cr3; 51CrV4; 52CrMoV4; 55Si7; 60Si7; 28MnSiB; 58CrMnB4; 27MnMoVB;
65Mn; 55CrSi; 50CrV; 60Si2Mn; CK67; 60Si2CrVA; 60Si2CrMnA.
2. Usage Auto parts; appliance manufacturing; construction machinery;
bearing; mattress sofa; regulation spring; etc
3. Size Diameter: 3mm-20mm
4. Material chemical composition
|
Steel grade |
C |
Mn |
S |
P |
Si |
Cr |
Cu |
|
SUP9 |
0.52～0.60 |
0.65～0.95 |
≤ 0.030 |
≤ 0.030 |
0.17～0.37 |
0.65～0.95 |
≤0.25 |
|
SAE9254 |
0.51～0.59 |
0.60～0.90 |
≤0.040 |
≤ 0.035 |
1.20～1.60 |
0.60～0.80 |
|
|
SAE6150 |
0.48～0.53 |
0.70～0.90 |
≤ 0.035 |
≤ 0.040 |
0.15～0.35 |
0.80～1.10 |
|
|
55CrSi |
0.50～0.60 |
0.5～0.8 |
≤ 0.030 |
≤ 0.030 |
1.20～1.60 |
0.50～0.80 |
≤ 0.02 |
|
60Si2Mn |
0.56～0.64 |
0.60～0.90 |
≤ 0.035 |
≤ 0.035 |
1.60～2.00 |
≤ 0.035 |
≤0.25 |
|
100Cr6 |
0.95～1.05 |
0.25～0.45 |
≤0.025 |
≤0.025 |
0.15～0.35 |
1.40～1.65 |
≤0.25 |
|
SUP10 |
0.47～0.55 |
0.65～0.95 |
≤ 0.030 |
≤ 0.030 |
0.15～0.35 |
0.80～1.10 |
≤0.25 |
|
SUP6 |
0.56～0.64 |
0.60～0.90 |
≤ 0.035 |
≤ 0.035 |
1.50～2.00 |
≤ 0.035 |
≤0.25 |
5. Hardness: ≤ 32HRC or 25-30HRC
Straightness: 0.4%.
6. Tensile strength/MPa
|
Diameter/mm |
Tensile |
strength/Mpa |
|
|
|
Grade B |
Grade C |
Grade D |
|
3.00 |
1370-1670 |
1570-1860 |
1710-1960 |
|
3.20 |
1320-1620 |
1570-1810 |
1660-1910 |
|
3.50 |
1320-1620 |
1570-1810 |
1660-1910 |
|
4.00 |
1320-1620 |
1520-1760 |
1620-1860 |
|
4.50 |
1320-1570 |
1520-1760 |
1620-1860 |
|
5.00 |
1320-1570 |
1470-1710 |
1570-1810 |
|
5.50 |
1270-1520 |
1470-1710 |
15701810 |
|
6.00 |
1220-1470 |
1420-1660 |
1520-1760 |
|
6.30 |
1220-1470 |
1420-1610 |
|
|
7.00 |
1170-1420 |
1370-1570 |
|
|
8.00 |
1170-1420 |
1370-1570 |
|
|
9.00 |
1130-1320 |
1320-1520 |
|
|
10.00 |
1130-1320 |
1320-1520 |
|
|
11.00 |
1080-1270 |
1270-1470 |
|
|
12.00 |
1080-1270 |
1270-1470 |
|
|
13.00 |
1030-1220 |
1220-1420 |
|
