UNS EV7
2014-01-06 13:37:52 Print this pageThe high quality USA UNS EV7 material is one of the more steel grades we supply, Steel for exhaust valves. EV7 is our main production grade, which has been approved by customers in many countries since its initial production, including our EV7 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 EV7 materials, and we are willing to develop together with customers from all over the world.
Also includes EV7 steel material norm, chemical composition, mechanical properties, datasheet, EV7 equivalent, heat treatment and temperature process of EV7, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in EV7 this steel grade have a more comprehensive understanding, Download the full EV7 PDF version of this datasheet.
Chemical composition (wt.%) of EV7
| Elements | Min.（≥） | Max.（≤） |
|---|---|---|
| C | 0.20 | - |
| Si | 0.50 | - |
| Mn | 5.00 | - |
| Cr | 21.0 | - |
| Ni | 4.50 | - |
| N | 0.30 | - |
Mechanical Properties of EV7
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 683 (≥) | 285 (≥) | 21 | 32 | 14 | Solution & Aging, Ann, Ausaging, Q+T | 421 |