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In ChinaSA-541 Class 8 material is AMS SA-541/SA-541M Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components.
Chemical composition of SA-541 Class 8, SA-541 Class 8 mechanical properties, SA-541 Class 8 datasheet, SA-541 Class 8 equivalent grade, Heat treatment and temperature process of SA-541 Class 8.
| AMS SA-541/SA-541M Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components | 
| C: | Max | 0.20 | 
| Si: | Max | 0.50 | 
| Mn: | Max | 1.00 | 
| P: | Max | Min | 
| S: | Max | Min | 
| Ni: | Max | Min | 
| Cr: | Max | 12.50 | 
| Al: | Max | Min | 
| Cu: | Max | Min | 
| Ti: | Max | Min | 
| Fe: | Max | remaining | 
| N: | Max | Min | 
| Mo: | Max | Min | 
| W: | Max | 3.00 | 
| Rp0.2 (MPa) | 814 (≥) | 
| Rm (MPa) | 325 (≥) | 
| AKV (J) | 32 | 
| A (%) | 23 | 
| Z (%) | 41 | 
| Hardness | HBW 144 | 
| SA-541 Class 8 Round bar: | 1mm-800mm | 
| SA-541 Class 8 Square bar: | 10mm * 10mm-600mm *600mm | 
| SA-541 Class 8 Flat bar: | Thickness:8mm-800mm Width:10mm to 1500mm | 
| SA-541 Class 8 Sheet or Plate: | Thickness:3mm-80mm Width:1.5mm to 1500mm | 
| SA-541 Class 8 Strip or Coil: | Thickness:0.1mm-3mm Width:1.5mm-1500mm | 
| SA-541 Class 8 Forgings: | Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes |