SAE L4
2013-05-16 23:22:28 Print this pageThe high quality USA SAE L4 material is one of the more steel grades we supply, Low Alloy Tool Steel. L4 is our main production grade, which has been approved by customers in many countries since its initial production, including our L4 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 L4 materials, and we are willing to develop together with customers from all over the world.
Also includes L4 steel material norm, chemical composition, mechanical properties, datasheet, L4 equivalent, heat treatment and temperature process of L4, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in L4 this steel grade have a more comprehensive understanding, Download the full L4 PDF version of this datasheet.
Chemical composition (wt.%) of L4
| Elements | Min.（≥） | Max.（≤） |
|---|---|---|
| C | 0.90 | 1.10 |
| Si | 0.10 | 0.40 |
| Mn | 0.50 | 0.70 |
| Cr | 1.45 | 1.55 |
| Mo | - | - |
| V | 0.20 | 0.30 |
| W | - | - |
Mechanical Properties of L4
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 567 (≥) | 142 (≥) | 32 | 34 | 21 | Solution & Aging, Ann, Ausaging, Q+T | 422 |
