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SA-437 Grade B4B
SA-437 Grade B4B 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 B4B, SA-437 Grade B4B mechanical properties, SA-437 Grade B4B datasheet, SA-437 Grade B4B equivalent grade, Heat treatment and temperature process of SA-437 Grade B4B.
SA-437 Grade B4B property sheet
SA-437 Grade B4B Spec.
| AMS SA-437/SA-437M Alloy Steel Turbine-Type Bolting Material Specially Heat Treated for High-Temperature Service |
Related Materials
Chemical Composition of SA-437 Grade B4B
| 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 |
Mechanical Properties of SA-437 Grade B4B
| Rp0.2 (MPa) | 352 (≥) |
| Rm (MPa) | 684 (≥) |
| AKV (J) | 23 |
| A (%) | 44 |
| Z (%) | 13 |
| Hardness | HBW 231 |
SA-437 Grade B4B shape and dimensions
| SA-437 Grade B4B Round bar: | 1mm-800mm |
| SA-437 Grade B4B Square bar: | 10mm * 10mm-600mm *600mm |
| SA-437 Grade B4B Flat bar: | Thickness:8mm-800mm Width:10mm to 1500mm |
| SA-437 Grade B4B Sheet or Plate: | Thickness:3mm-80mm Width:1.5mm to 1500mm |
| SA-437 Grade B4B Strip or Coil: | Thickness:0.1mm-3mm Width:1.5mm-1500mm |
| SA-437 Grade B4B Forgings: | Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes |
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