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In ChinaA 193 B8M2 Class 2B material is SAE A 193/A 193M (2012) Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications.
Chemical composition of A 193 B8M2 Class 2B, A 193 B8M2 Class 2B mechanical properties, A 193 B8M2 Class 2B datasheet, A 193 B8M2 Class 2B equivalent grade, Heat treatment and temperature process of A 193 B8M2 Class 2B.
| SAE A 193/A 193M (2012) Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications |
| A 193 B8M2 Class 2 |
| A 193 B8M2 Class 2B |
| B 388 TM22 |
| B 883 MIM-2200 |
| SA-193 Grade B8M2 Class 2B |
| C: | Max | 0.13 |
| Si: | Max | Min |
| Mn: | Max | Min |
| Ni: | Max | Min |
| Cr: | Max | 5.70 |
| Al: | Max | 6.30 |
| Cu: | Max | Min |
| Ti: | Max | Min |
| Fe: | Max | Min |
| Mo: | Max | 2.00 |
| Co: | Max | Min |
| Ta: | Max | 3.00 |
| Zr: | Max | 0.60 |
| W: | Max | 11.00 |
| Rp0.2 (MPa) | 579 (≥) |
| Rm (MPa) | 584 (≥) |
| AKV (J) | 12 |
| A (%) | 44 |
| Z (%) | 21 |
| Hardness | HBW 341 |
| A 193 B8M2 Class 2B Round bar: | 1mm-800mm |
| A 193 B8M2 Class 2B Square bar: | 10mm * 10mm-600mm *600mm |
| A 193 B8M2 Class 2B Flat bar: | Thickness:8mm-800mm Width:10mm to 1500mm |
| A 193 B8M2 Class 2B Sheet or Plate: | Thickness:3mm-80mm Width:1.5mm to 1500mm |
| A 193 B8M2 Class 2B Strip or Coil: | Thickness:0.1mm-3mm Width:1.5mm-1500mm |
| A 193 B8M2 Class 2B Forgings: | Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes |