ASTM ASTM440A
2018-04-17 15:35:36 Print this pageThe high quality USA ASTM ASTM440A material is one of the more steel grades we supply, ASTM440A. ASTM440A is our main production grade, which has been approved by customers in many countries since its initial production, including our ASTM440A 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 ASTM440A materials, and we are willing to develop together with customers from all over the world.
Also includes ASTM440A steel material norm, chemical composition, mechanical properties, datasheet, ASTM440A equivalent, heat treatment and temperature process of ASTM440A, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in ASTM440A this steel grade have a more comprehensive understanding, Download the full ASTM440A PDF version of this datasheet.
Chemical composition (wt.%) of ASTM440A
| Elements | Min.（≥） | Max.（≤） |
|---|---|---|
| C | 0.60 | 0.75 |
| Si | - | 1.00 |
| Mn | - | 1.00 |
| P | - | 0.04 |
| S | - | 0.03 |
| Cr | 16.0 | 18.0 |
| Mo | - | 0.75 |
Mechanical Properties of ASTM440A
| Rp0.2 (MPa) | Rm (MPa) | Impact KV (J) |
Elongation A (%) |
A Z (%) | Delivery | Hardness HB |
|---|---|---|---|---|---|---|
| 549 (≥) | 131 (≥) | 24 | 33 | 41 | Solution & Aging, Ann, Ausaging, Q+T | 323 |
