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50CrV4
Qilu
Product Description
DIN 17200 50CrV4/1.8159 Quenching and Tempering Steel
1: 50CrV4 Steel Introduction
50CrV4 is a high-quality chromium-vanadium alloy spring steel known for its excellent strength, toughness, and fatigue resistance. As a medium-carbon steel, it offers superior hardenability, good ductility, and minimal deformation after heat treatment.
Commonly supplied in a quenched and tempered condition, 50CrV4 is widely used in critical mechanical components such as high-stress springs, torsion bars, clutch discs, and other load-bearing parts requiring high durability and resilience. Its balanced composition ensures reliable performance in demanding applications. Typical hardness ranges between 40-45 HRC after heat treatment, making it ideal for automotive, aerospace, and industrial uses where fatigue resistance and dynamic stress resistance are essential.
50CrV4 Steel Stock In Warehouse
2: 50CrV4 Quality Standard
DIN 50CrV4 steel according to DIN 17200.
3: Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | V |
| 50CrV4/1.8159 | 0.47-0.55 | 0.40Max | 0.70-1.10 | 0.035Max | 0.030Max | 0.90-1.20 | 0.10-0.20 |
| 50CrVA | 0.47-0.55 | 0.17-0.37 | 0.50-0.80 | 0.025Max | 0.025Max | 0.80-1.10 | 0.10-0.20 |
| SUP10 | 0.51-0.59 | 1.20-1.60 | 0.60-0.90 | 0.030Max | 0.030Max | / | / |
| 6150 | 0.48-0.53 | 0.15-0.30 | 0.70-0.90 | 0.025Max | 0.025Max | 0.80-1.10 | 0.15-0.25 |
| 735A50 | 0.47-0.55 | 0.10-0.35 | 0.60-0.90 | 0.025Max | 0.025Max | 0.80-1.10 | 0.15-0.25 |
4: Mechanical Properties
Grade | H+T | Tensile strength | Yield strength | Elongation | Reduction | Impact Value | Hardness/HB |
| 50CrV4 | +A | / | / | / | / | / | 170 |
50CrV4 | +QT | 845 | 730 | 19 | 58 | 81/92/92 | 280/292/292 |
5: 50CrV4 Steel Equivalent
| Country | China | Japan | Germany | USA | England |
| Standard | GB/T 3077 | JIS G4105 | DIN (W-Nr.) DIN 17200 | AISI/ASTM A29 | BS 970 |
| Grade | 50CrVA | SUP10 | 50CrV4/1.8159 | 6150 | 735A50 |
6: Goods available in China
The availability of 50CrV4 in China is characterized by limited spot stock for standard forms like hot-rolled bars and plates, typically requiring mill ordering for larger quantities; however, for hot-forged 50CrV4 materials, while standard forged bars may occasionally be found, specific blocks or custom forged parts are made-to-order, often as little as one piece, due to the relative ease of sourcing the raw material for processing.
