The high quality China GBT A70204 material is one of the more steel grades we supply, China structural steel and alloy steel. A70204 is our main production grade, which has been approved by customers in many countries since its initial production, including our A70204 round bars, flat bar, forgings, fasteners, tubes, wires, strips, sheets & Plates, as well as a variety of profiles, professional high precision auto-lathe processing manufacturer of clinching fasteners, axes, standoffs, screws, studs, nuts, bolt, OEM parts and special shaped turning partsthe state of delivery includes quenched and tempered, annealed, machined semi-finished products, we also have strict management of the packaging, to avoid material damage from transportation. We are the best supplier of A70204 materials, and we are willing to develop together with customers from all over the world.
Also includes A70204 steel material norm, chemical composition, mechanical properties, datasheet, A70204 equivalent, heat treatment and temperature process of A70204, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in A70204 this steel grade have a more comprehensive understanding, Download the full A70204 PDF version of this datasheet.
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) |
|---|---|---|---|---|---|
| 0.17-0.24 | Max 0.40 | 0.50-0.80 | 0.035 | 0.035 | — |
| B(%) | Al(%) | ||||
| 0.0005-0.0035 | 0.02 |
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 769 (≥) | 181 (≥) | 13 | 23 | 33 | Solution & Aging, Ann, Ausaging, Q+T | 244 |