Certified Company
DNV&ABSCertified Company
DNV&ABSCertified Company
ISO 9001:2008R&D Production
In ChinaA 646 Grade HP 9-4-20 material is SAE A 646/A 646M (2011) Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings.
Chemical composition of A 646 Grade HP 9-4-20, A 646 Grade HP 9-4-20 mechanical properties, A 646 Grade HP 9-4-20 datasheet, A 646 Grade HP 9-4-20 equivalent grade, Heat treatment and temperature process of A 646 Grade HP 9-4-20.
SAE A 646/A 646M (2011) Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings |
A 646 Grade HP 9-4-20 |
HP 9-4-20 |
HP 9-4-20 |
HP 9-4-20 |
HP 9-4-20 |
HP 9-4-25 |
HP 9-4-25 |
A 646 Grade HP 9-4-30 |
HP 9-4-30 |
HP 9-4-30 |
HP 9-4-30 |
HP 9-4-30 |
C: | 0.17 | 0.23 |
Si: | Max | 0.10 |
Mn: | Max | 0.20 |
Ni: | Max | 0.65 |
Cr: | Max | 0.40 |
Al: | 4.25 | 4.75 |
Cu: | Max | Min |
Ti: | Max | Min |
Fe: | Max | Min |
Mo: | Max | 0.85 |
Co: | 8.50 | 9.50 |
V: | 0.06 | 0.12 |
P: | Max | 0.01 |
S: | Max | 0.01 |
W: | 0.90 | 1.10 |
Rp0.2 (MPa) | 894 (≥) |
Rm (MPa) | 657 (≥) |
AKV (J) | 41 |
A (%) | 24 |
Z (%) | 11 |
Hardness | HBW 233 |
A 646 Grade HP 9-4-20 Round bar: | 1mm-800mm |
A 646 Grade HP 9-4-20 Square bar: | 10mm * 10mm-600mm *600mm |
A 646 Grade HP 9-4-20 Flat bar: | Thickness:8mm-800mm Width:10mm to 1500mm |
A 646 Grade HP 9-4-20 Sheet or Plate: | Thickness:3mm-80mm Width:1.5mm to 1500mm |
A 646 Grade HP 9-4-20 Strip or Coil: | Thickness:0.1mm-3mm Width:1.5mm-1500mm |
A 646 Grade HP 9-4-20 Forgings: | Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes |