The high quality USA AISI CU-4 material is one of the more steel grades we supply, W-Ta-Nb-Co class carbide. CU-4 is our main production grade, which has been approved by customers in many countries since its initial production, including our CU-4 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 CU-4 materials, and we are willing to develop together with customers from all over the world.
Also includes CU-4 steel material norm, chemical composition, mechanical properties, datasheet, CU-4 equivalent, heat treatment and temperature process of CU-4, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in CU-4 this steel grade have a more comprehensive understanding, Download the full CU-4 PDF version of this datasheet.
| C(％) | W(%) | |
|---|---|---|
| 4.7 | 71.7 | |
| Co(%) | Nb(%) | Ta(%) |
| 20.0 | 0.9 | 2.7 |
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 143 (≥) | 553 (≥) | 24 | 32 | 44 | Solution & Aging, Ann, Ausaging, Q+T | 234 |