The high quality Czech Republic CSN G639.90 material is one of the more steel grades we supply, The Czech republic Structural steel. G639.90 is our main production grade, which has been approved by customers in many countries since its initial production, including our G639.90 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 G639.90 materials, and we are willing to develop together with customers from all over the world.
Also includes G639.90 steel material norm, chemical composition, mechanical properties, datasheet, G639.90 equivalent, heat treatment and temperature process of G639.90, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in G639.90 this steel grade have a more comprehensive understanding, Download the full G639.90 PDF version of this datasheet.
| C(％) | Si(％) | Mn(％) | Cr(％) | W(%) |
|---|---|---|---|---|
| 1.80-2.40 | Max 0.50 | Max 0.50 | 25.0- 30.0 | 10.0-15.0 |
| Co(%) | Nb(%) | |||
| 45.0-55.0 | WiCo |
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 232 (≥) | 146 (≥) | 21 | 41 | 11 | Solution & Aging, Ann, Ausaging, Q+T | 424 |
1.4543 / X3CrNiCuTiNb12-9 Round Bar
ASTM F899 XM-16 Round Bar