ASTM T4
2013-05-16 23:22:28 Print this pageThe high quality USA ASTM T4 material is one of the more steel grades we supply, High-Speed Tool Steel. T4 is our main production grade, which has been approved by customers in many countries since its initial production, including our T4 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 T4 materials, and we are willing to develop together with customers from all over the world.
Also includes T4 steel material norm, chemical composition, mechanical properties, datasheet, T4 equivalent, heat treatment and temperature process of T4, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in T4 this steel grade have a more comprehensive understanding, Download the full T4 PDF version of this datasheet.
Chemical composition (wt.%) of T4
| Elements | Min.（≥） | Max.（≤） |
|---|---|---|
| C | 0.70 | 0.80 |
| Si | 0.20 | 0.40 |
| Mn | 0.10 | 0.40 |
| P | - | 0.030 |
| S | - | 0.030 |
| Cr | 3.75 | 4.50 |
| Mo | 0.40 | 1.00 |
| V | 0.80 | 1.20 |
| W | 17.50 | 19.00 |
| Co | 4.25 | 5.75 |
Mechanical Properties of T4
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 269 (≥) | 433 (≥) | 31 | 12 | 21 | Solution & Aging, Ann, Ausaging, Q+T | 344 |
Equivalent Grade Stock of T4
| Materials | Dimension | Quantity | State |
|---|---|---|---|
| T45Cr5Si3 Round Bar | Dia.40mm | 500 Kgs | Hot-Rolled+Annealed+black |
