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Sup3 Sup6 Sup7 Sup9 Sup10 Sup11A spring steel bar spring steel strip
1.quality:65# 70# 75# 85# 65Mn 55Si2Mn 60Si2Mn 60Si2CrA 50CrMn 50CrVA Sup3 Sup6 Sup7 Sup9 Sup10 Sup11A CK67 C75 55Si7 65Si7 67SiCr5 55Cr3 50CrV4 ASTM1064 1065 ASTM1070 ASTM1084 ASTM1566 ASTM9255 ASTM9260 ASTM9254 ASTM6150
2.Size:20-180mm
3.MOQ:20mt
4.Chemical composition:
Grade | C | Si | Mn | Cr |
65# (CK67 C67) | 0.62 0.70 | 0.17 0.37 | 0.50 0.80 | Max 0.25 |
70# (CK67 C67) | 0.62 0.75 | 0.17 0.37 | 0.50 0.80 | Max 0.25 |
85# (SUP3) | 0.82 0.90 | 0.17 0.37 | 0.50 0.80 | Max 0.25 |
65Mn | 0.62 0.70 | 0.17 0.37 | 0.90 1.20 | Max 0.25 |
55Si2Mn (SUP6) (55Si7) | 0.52 0.60 | 1.50 2.00 | 0.60 0.90 | Max 0.35 |
60Si2Mn (SUP7) (65Si7) | 0.56 0.64 | 1.50 2.00 | 0.60 0.90 | Max 0.35 |
60Si2CrA (67SiCr5) | 0.56 0.64 | 1.40 1.80 | 0.40 0.70 | 0.70 1.00 |
50CrMn (SUP9) (55Cr3) | 0.52 0.60 | 0.17 0.37 | 0.65 0.95 | 0.65 0.95 |
50CrVA (SUP10) (50CrV4) | 0.46 0.54 | 0.17 0.37 | 0.50 0.80 | 0.80 1.10 |
Grade | C | Si | Mn | P max | S max | Cr | Cu | V |
SUP3 (85#) | 0.75 0.90 | 0.15 0.35 | 0.30 0.60 | 0.035 | 0.035 | Max 0.30 | ||
SUP6 (55Si2Mn) (55Si7) | 0.56 0.64 | 1.50 1.80 | 0.70 1.00 | 0.035 | 0.035 | Max 0.30 | ||
SUP7 (60Si2Mn) (65Si7) | 0.56 0.64 | 1.80 2.20 | 0.70 1.00 | 0.035 | 0.035 | Max 0.30 | ||
SUP9 (50CrMn) (55Cr3) | 0.52 0.60 | 0.15 0.35 | 0.65 0.95 | 0.035 | 0.035 | 0.65 0.95 | Max 0.30 | |
SUP10 (50CrVA) (50CrV4) | 0.47 0.55 | 0.15 0.35 | 0.65 0.95 | 0.035 | 0.035 | 0.80 1.10 | Max 0.30 | 0.15 0.25 |
SUP11A | 0.56 0.64 | 0.15 0.35 | 0.70 1.00 | 0.035 | 0.035 | 0.70 1.00 | Max 0.30 | B Min0.0005 |