51HFA - 51CrV4 - 1.8159 wire, round, rod
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 51ХФА | ~~1.8159 | ~~51CrV4 | Delivery from the stock, in stock |
Composition and properties
Spring steel brand 51HFA regularly in Russia and the CIS countries are not available, although it is stipulated GOST 14959. Foreign analogues of steel: North America — spring steel ASTM (1.8159), in Europe — steel 51CrV4, the technical requirements which comply with the provisions of EN 10277 -5.
Chemical composition of steel:
| Component | Carbon | Silicon | Manganese | Chrome | Vanadium |
|---|---|---|---|---|---|
| The content in steel, % | 0,47 0,55… | To 0.4 | 0,7…1,1 | 0,9…1,2 | 0,1…0,25 |
In the process of steelmaking in its composition are also phosphorus and sulphur, the percentage of which in the final product should not be more than 0,025%.
The main physico-mechanical characteristics of steels:
- Limit strength at a stretching, MPa, not less — 1274;
- The plastic limit, MPa, not less — 1127;
- Elongation, %, min — 10;
- The relative narrowing of the cross section, %, not less — 40;
- Brinell hardness number, HB — 240…280 (depending on the delivery conditions.)
Steel of this type lend themselves well to all types of heat treatment — annealing, the release and quenching. Due to the large amount of carbon in the material rolling is produced mainly in the hot state.
With decreasing size of the cross section parameters of the mechanical characteristics, stated above, can be reduced by not more than 5%.
Application
51HFA spring steel, 51CrV4, (1.8159) are used in the manufacture responsible of the springs of the machinery and mechanisms that operate in dynamic loading conditions, and at temperatures elevated up to 180…2500 C. the Material has good deformability in hot state. Welded construction of the steel do not perform.
From the data of the grades of steel are produced mainly flat springs, torsion springs and springs that are coiled from wire with a diameter of 30 mm.
The company Electrocentury-steel offers to buy a round, rod, wire steel grades 51HFA, 51CrV4, (1.8159) at the economical price from the manufacturer. Direct shipments eliminate the dispersion of quality indicators of finished products within the same batch, and the range of profiles always match the size stated by the customer.
