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A 646 Grade 300M


A 646 Grade 300M 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 300M, A 646 Grade 300M mechanical properties, A 646 Grade 300M datasheet, A 646 Grade 300M equivalent grade, Heat treatment and temperature process of A 646 Grade 300M.


A 646 Grade 300M property sheet

A 646 Grade 300M Spec.

SAE A 646/A 646M (2011)
Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings

Related Materials

300M
A 646 Grade 300M
Grade 1300 M

Chemical Composition of A 646 Grade 300M

C: Max 0.40
Si: Max 1.60
Mn: Max 0.75
P: Max Min
S: Max Min
Ni: Max 0.40
Cr: Max 1.85
Al: Max Min
Cu: Max Min
Ti: Max Min
Fe: Max remaining
N: Max Min
Mo: Max Min
V: Max 0.08

Mechanical Properties of A 646 Grade 300M

Rp0.2 (MPa) 812 (≥)
Rm (MPa) 399 (≥)
AKV (J) 41
A (%) 24
Z (%) 22
Hardness HBW 344

A 646 Grade 300M shape and dimensions

A 646 Grade 300M Round bar: 1mm-800mm
A 646 Grade 300M Square bar: 10mm * 10mm-600mm *600mm
A 646 Grade 300M Flat bar: Thickness:8mm-800mm Width:10mm to 1500mm
A 646 Grade 300M Sheet or Plate: Thickness:3mm-80mm Width:1.5mm to 1500mm
A 646 Grade 300M Strip or Coil: Thickness:0.1mm-3mm Width:1.5mm-1500mm
A 646 Grade 300M Forgings: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes