HC260Y is a high strength steel without interstitial atoms. The chemical composition of the steel is controlled to improve the plastic strain ratio (r value) and strain hardening index (n value). Due to the solid solution strengthening of elements in steel and the microstructure without interstitial atoms, this kind of steel not only has high strength, but also has very good cold forming properties. It is usually used to make complex parts that need deep stamping, which are widely used in ships, vehicles, aircraft, railways, bridges, pressure vessels, machine tools and other structures.

Chemical composition range value:
The actual chemical composition shall be subject to the warranty of the steel plant.
Hc260y carbon C: ≤ 001
Hc260y Mn: ≤ 2.00
Hc260y sulfur s: ≤ 0.12
Hc260y phosphorus P: ≤ 0.025
Hc260y all aluminum at: ≥ 0.010
Hc260y titanium t ≤ 0.12A
It is allowed to replace Ti with Nb in part or in whole. At this time, the total content of Nb and / or Ti shall not be greater than 0.20%.
Hc260y mechanical property range value:
Note: the actual force word performance shall be subject to the warranty of the steel factory.
tensile strength σ b(MPa) : ≥380
yield strength σ 0.2(MPa) : 260-320
Elongation a80mm (%): ≥ 28
Sample size: the Gross size of the sample is 1.3mm