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ISO 9001:2008R&D Production
In ChinaSA-437 Grade B4D material is AMS SA-437/SA-437M Alloy Steel Turbine-Type Bolting Material Specially Heat Treated for High-Temperature Service Alloy Steel Turbine-Type Bolting Material Specially Heat Treated for High-Temperature Service.
Chemical composition of SA-437 Grade B4D, SA-437 Grade B4D mechanical properties, SA-437 Grade B4D datasheet, SA-437 Grade B4D equivalent grade, Heat treatment and temperature process of SA-437 Grade B4D.
AMS SA-437/SA-437M Alloy Steel Turbine-Type Bolting Material Specially Heat Treated for High-Temperature Service |
C: | Max | 0.01 |
Si: | Max | 0.05 |
Mn: | Max | 1.50 |
P: | Max | 0.04 |
S: | Max | 0.01 |
Ni: | Max | remaining |
Cr: | 0.50 | 1.50 |
Al: | 0.10 | 0.50 |
Cu: | Max | 0.50 |
Ti: | Max | Min |
Fe: | 1.00 | 6.00 |
Mo: | 26.00 | 30.00 |
Co: | Max | 2.50 |
Rp0.2 (MPa) | 383 (≥) |
Rm (MPa) | 996 (≥) |
AKV (J) | 12 |
A (%) | 21 |
Z (%) | 32 |
Hardness | HBW 233 |
SA-437 Grade B4D Round bar: | 1mm-800mm |
SA-437 Grade B4D Square bar: | 10mm * 10mm-600mm *600mm |
SA-437 Grade B4D Flat bar: | Thickness:8mm-800mm Width:10mm to 1500mm |
SA-437 Grade B4D Sheet or Plate: | Thickness:3mm-80mm Width:1.5mm to 1500mm |
SA-437 Grade B4D Strip or Coil: | Thickness:0.1mm-3mm Width:1.5mm-1500mm |
SA-437 Grade B4D Forgings: | Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes |