Hot-formed steel is a type of steel that changes its structure and properties through thermo-mechanical processing (such as rolling, forging, extrusion, etc.) under high temperature. It has excellent properties, workability and corrosion resistance. Because hot-formed steel is processed at high temperatures, its grain size becomes larger and the deformation ability of the steel is also enhanced. As a result, it has excellent plasticity and can easily realize complex deformation processes. During the processing of hot-formed steel at high temperatures, due to the strong oxide film protection on the surface of the steel, its surface quality is better, which facilitates subsequent processing and surface treatment. Applications of Docol PHS 1500M hot-formed steel include safety parts such as door anti-collision beams, bumper systems, and B- pillar reinforcements.
Mechanical Properties
| Steel Grade | Standard | Status | Test Direction | Yield Strength Rp0.2 (MPa) | Tensile Strength Rm (MPa) | Extension Rate A80( %) | Extension Rate A5( %) |
| Docol PHS FH 1500 | SSAB | Full hard | T | 960 | 1060 | 4 | - |
| Docol PHS CR1500 | SSAB | Fire after delivery | T | 340 | 480 | 28 | - |
| Docol PHS CR1500 | SSAB | Hot printing | T | 1200 | 1590 | 6 | - |
| Docol PHS HR1500 | SSAB | hot rolling | T | 570 | 715 | 20 | 22 |
| Docol PHS HR1500 A | SSAB | Annealing | T | 350 | 530 | 25 | 33 |
| Docol PHS HR1500 | SSAB | Hot printing | T | 1200 | 1590 | 6 | 7 |
Chemical Composition
| Brand | C (max %) | Si (max %) | Mn(max %) | P (max %) | S(max %) | Cr(max %) | B(max %) |
| Docol PHS CR1500 | 0.20-0.25 | 0.15-0.35 | 1.00-1.35 | 0.025 | 0.005 | 0.35 | 0.0020-0.0050 |
| Docol PHS HR1500 | 0.20-0.25 | 0.15-0.35 | 1.00-1.35 | 0.025 | 0.005 | 0.35 | 0.0020-0.0050 |