ASTM A3
The high quality USA ASTM A3 material is one of the more steel grades we supply, Alloy tool steel.
A3 is our main production grade, which has been approved by customers in many countries since its initial production, including our A3 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 A3 materials, and we are willing to develop together with customers from all over the world.
Also includes A3 steel material norm, chemical composition, mechanical
properties, datasheet, A3 equivalent, heat treatment and temperature process of A3, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in A3 this steel grade have a more comprehensive understanding, Download the full A3 PDF version of this datasheet.
2015-08-10 15:47:42
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C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Mo(%) | V(%) |
1.20~1.30 | 0.10~0.50 | 0.40~0.60 | ≤0.030 | ≤0.030 | 4.75~5.50 | 0.90~1.40 | 0.80~1.40 |
Rp0.2 (MPa) |
Rm (MPa) |
Impact KV (J) |
Elongation A (%) |
A Z (%) |
Delivery |
Hardness HB |
361 (≥) |
247 (≥) |
21 |
32 |
41 |
Solution & Aging, Ann, Ausaging, Q+T |
421 |
Materials |
Dimension |
Quantity |
State |
A387 F5 & Grade 5 sheet Coil strip |
0.5mmx200mmxC |
3 Tons |
Cold-Rolled+Annealed |
A387 F5 & Grade 5 Hot Coil stock |
3.2mmx200mmxC |
3 Tons |
Hot-Rolled+Annealed+black |