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AISI/SAE 5160 Carbon Steel Bar Description
5160 alloy steel is a high carbon spring steel with a small addition of chromium alongside carbon. The inclusion of chromium serves to enhance the hardenability of the steel. Renowned for its exceptional toughness, ductility, and fatigue resistance, 5160 steel is widely utilized in the automotive and tractor industry for manufacturing leaf springs designed to withstand heavy loads and significant stresses, as well as coil springs with larger diameters.
Product Parameters
| Product Name | AISI/SAE 5160 Carbon Steel Bar | |||
| Standard | EN/DIN/JIS/ASTM/BS/ASME/AISI, etc. | |||
| Common Round Bar Specifications | 3.0-50.8 mm, Over 50.8-300mm | |||
| Flat Steel Common Specifications | 6.35x12.7mm, 6.35x25.4mm, 12.7x25.4mm | |||
| Hexagon Bar Common Specifications | AF5.8mm-17mm | |||
| Square Bar Common Specifications | AF2mm-14mm, AF6.35mm, 9.5mm, 12.7mm, 15.98mm, 19.0mm, 25.4mm | |||
| Length | 1-6meters, Size Accept Custom | |||
| Diameter(mm) | Hot Rolling Round Bar | 25-600 | Cold Rolling Square Bar | 6-50.8 |
| Hot Rolling Square Bar | 21-54 | Cold Rolling Hexagon Bar | 9.5-65 | |
| Cold Rolling Round bar | 6-101.6 | Forged Rebar | 200-1000 | |
| Surface Process | Bright, Polished, Black | |||
| Other Services | Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc. | |||
| Scope of Application | 5160 steel is an ideal spring steel. Its high strength is often used in applications with small cross-sections under significant stress, such as springs, fasteners, and leaf springs in automotive suspensions. | |||
Chemical Composition
| Standard | Grade | C | Si | Mn | Cr | V | P≤ | S≤ |
| DIN 17221 | 60SiCr7 | 0.57-0.65 | 1.50-1.80 | 0.70-1.00 | 0.20-0.40 | 0.030 | 0.030 | |
| 55Cr3 | 0.52-059 | ≤ 0.40 | 0.70-1.00 | 0.70-1.00 | 0.025 | 0.025 | ||
| 60Cr3 | 0.56-0.64 | 0.17-0.37 | 0.70-1.00 | 0.70-1.00 | 0.025 | 0.025 | ||
| 50CrV4 | 0.47-0.55 | 0.15-0.40 | 0.70-1.00 | 0.70-1.10 | 0.10-0.20 | 0.030 | 0.030 | |
| JIS G4801 | SUP6 | 0.55-0.65 | 1.50-1.80 | 0.70-1.00 | — | 0.035 | 0.035 | |
| SUP7 | 0.55-0.65 | 1.80-2.20 | 0.70-1.00 | — | 0.035 | 0.035 | ||
| SUP9 | 0.52-0.60 | 0.15-0.35 | 0.65-0.95 | 0.65-0.95 | 0.030 | 0.030 | ||
| SUP9A | 0.56-0.64 | 0.15-0.35 | 0.70-1.00 | 0.70-1.00 | 0.030 | 0.030 | ||
| SUP10 | 0.47-0.55 | 0.15-0.35 | 0.65-0.95 | 0.80-1.10 | 0.15-0.25 | 0.030 | 0.030 | |
| SAE J1268 | 9260/H | 0.55-0.65 | 0.70-1.20 | 0.65-1.10 | ≤0.2 | 0.040 | 0.030 | |
| 5155 | 0.50-0.60 | 0.15-0.35 | 0.65-1.10 | 0.60-1.00 | 0.040 | 0.030 | ||
| 5160/H | 0.55-0.65 | 0.15-0.35 | 0.65-1.10 | 0.60-1.00 | 0.040 | 0.030 | ||
| 6150 | 0.47-0.54 | 0.15-0.35 | 0.60-1.00 | 0.75-1.20 | ≤ 0.15 | 0.040 | 0.030 |
Mechanical Properties
| 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 | |
