Alloy spring steel flat bar for leaf spring with material AISI 9620
| Product Chemical Composition (%) | ||||||||||
| STANDARD | C | Si | Mn | Cr | V | P | S | |||
| GB | SAE | JIS | DIN | ≤ | ||||||
| 65Mn | 1066 | 0.62-0.70 | 0.17-0.37 | 0.90-1.20 | ≤0.25 | 0.035 | 0.035 | |||
| 60Si2Mn | 9260 | SUP6 | 60Si7 | 0.56-0.64 | 1.50-2.00 | 0.60-0.90 | ≤0.35 | 0.035 | 0.035 | |
| 60Si2MnA | 9260 | SUP7 | 60Si7 | 0.56-0.64 | 1.60-2.00 | 0.60-0.90 | ≤0.35 | 0.025 | 0.025 | |
| 55CrMnA | 5155 | SUP9 | 55Cr3 | 0.52-0.60 | 0.17-0.37 | 0.65-0.95 | 0.65-0.95 | 0.025 | 0.025 | |
| 60CrMnA | 5160/h | SUP9A | 0.56-0.64 | 0.17-0.37 | 0.70-1.00 | 0.70-1.00 | 0.025 | 0.025 | ||
| 50CrVA | 6150 | SUP10 | 51CrV4 | 0.46-0.54 | 0.17-0.37 | 0.50-0.80 | 0.80-1.10 | 0.10-0.20 | 0.025 | 0.025 |
| 30CrMnB5 | 0.27-0.31 | 0.15-0.30 | 1.1-1.4 | 0.35-0.40 | 0.035 | |||||
| Product Mechanical Property(%) | |||||||||
| STANDARD | Heat Treatment | Mechanical Property [≥] | |||||||
| GB | SAE | JIS | DIN | Quenching Temprature°C | Quenchant | Temper Stressing °C | Tensile Strength Rm/[N/mm2] | Yield Strength ReL/[N/mm2] | HBW≤ |
| 65Mn | 1066 | 830 | Oil | 540 | 980 | 785 | 302 | ||
| 60Si2Mn | 9260 | SUP6 | 60Si7 | 870 | 480 | 1275 | 1180 | 321 | |
| 60Si2MnA | 9260 | SUP7 | 60Si7 | 870 | 440 | 1570 | 1375 | 321 | |
| 55CrMnA | 5155 | SUP9 | 55Cr3 | 830-860 | 460-510 | 1225 | 1080(Rpo 2) | 321 | |
| 60CrMnA | 5160/h | SUP9A | 830-860 | 460-520 | 1225 | 1080(Rpo 2) | 321 | ||
| 50CrVA | 6150 | SUP10 | 51CrV4 | 850 | 500 | 1275 | 1130 | 321 | |
SIZE CHART (Width*Thickness: mm) | |||||||
40-50 | 57-63 | 63.5-69.9 | 70-75 | 76-79 | 80-89 | 90-100 | 101.6-127 |
40x6 | 57.15x6.35 | 63.5x6 | 70x6 | 76.2x74 | 80x7 | 90x10 | 101.6x9.5 |
42.27x7.94 | 57.15x6.65 | 63.5x6.35 | 70x7 | 76.2x8.2 | 80x7.4 | 90x11 | 101.6x9.52 |
44.45x4.76 | 57.15x7.4 | 63.5x6.65 | 70x7.4 | 76.2x9.14 | 80x8 | 90x12 | 101.6x10.2 |
44.45x6 | 57.15x9.14 | 63.5x7.4 | 70x8 | 76.2x10.2 | 80x9 | 90x13 | 101.6x10.7 |
44.45x6.35 | 57.15x9.52 | 63.5x8 | 70x9 | 76.2x11.1 | 80x10 | 90x14 | 101.6x11.1 |
44.45x6.65 | 57.15x10.2 | 63.5x8.2 | 70x10 | 76.2x11.35 | 80x11 | 90x15 | 101.6x11.35 |
44.45x8.2 | 57.2x10.2 | 63.5x8.66 | 70x11 | 76.2x12.67 | 80x12 | 90x22 | 101.6x12.67 |
44.5x6 | 59x6 | 63.5x9.1 | 70x12 | 76.2x12.7 | 80x13 | 90x26 | 101.6x12.7 |
44.5x9 | 60x6 | 63.5x9.14 | 70x13 | 76.2x12.88 | 80x14 | 90x30 | 101.6x14.2 |
45x6 | 60x7 | 63.5x11.35 | 70x14 | 76.2x16.8 | 80x15 | 99x11.5 | 101.6x20 |
45x7 | 60x8 | 63.5x12.7 | 70x15 | 76.2x19.05 | 80x16 | 100x8 | 101.6x20.02 |
45x9 | 60x9 | 63.5x15.88 | 70x20 | 76.2x20 | 80x22 | 100x10 | 102x9.2 |
49x7 | 60x10 | 64x8.2 | 70x21 | 76.2x20.6 | 80x23 | 100x14 | 102x14.2 |
50x6 | 60x11 | 65x7 | 70x25 | 76.2x25.4 | 80x25 | 100x18 | 105x8 |
50x7 | 60x12 | 65x12 | 75x5.8 | 76.2x28 | 80x31 | 100x23 | 110x12 |
50x12 | 60x13 | 69.9x11 | 75x6 | 79x10.5 | 80x35 | 100x25 | 110x23 |
50.8x6 | 60x14 | 75x8 | 88.9x9.52 | 100x30 | 120x20 | ||
50.8x7.4 | 60x15 | 75x9 | 89x20 | 100x40 | 120x25 | ||
50.8x8.2 | 60x16.5 | 75x10 | 100x43 | 127x20 | |||
50.8x9 | 60x22 | 75x11 | 127x25.4 | ||||
50.8x10.2 | 63x9 | 75x13 | |||||
Tianjin QIANGBANG Industrial Co., Ltd. has dedicated in steel industry
for almost 15 years.With rigorous quality control, advanced equipment,
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