AISI/SAE 5160 Carbon Steel Bar Description
5160 alloy steel is a high carbon spring steel with a small amount of chromium added in addition to carbon. The addition of chromium can improve the hardenability of steel. 5160 steel has excellent toughness, ductility and fatigue resistance. Although various properties such as wear resistance are excellent, it is famous for its excellent toughness. 5160 steel bars are used in the vehicle and tractor industry to make leaf springs with heavy loads and large stresses and 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 | 6.35×12.7mm, 6.35×25.4mm, 12.7×25.4mm | |||
| 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. | |||
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 | |
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.
