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In ChinaA 193 347LN Class 1 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 347LN Class 1, A 193 347LN Class 1 mechanical properties, A 193 347LN Class 1 datasheet, A 193 347LN Class 1 equivalent grade, Heat treatment and temperature process of A 193 347LN Class 1.
| 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 | 
| C: | 0.005 | 0.02 | 
| Si: | Max | 0.75 | 
| Mn: | Max | 2.00 | 
| P: | Max | 0.04 | 
| S: | Max | 0.03 | 
| Ni: | 9.00 | 13.00 | 
| Cr: | 17.00 | 20.00 | 
| Al: | Max | Min | 
| Cu: | Max | Min | 
| Ti: | Max | Min | 
| Fe: | Max | Min | 
| N: | 0.06 | 0.10 | 
| Mo: | Max | Min | 
| V: | Max | Min | 
| Rp0.2 (MPa) | 149 (≥) | 
| Rm (MPa) | 921 (≥) | 
| AKV (J) | 41 | 
| A (%) | 11 | 
| Z (%) | 23 | 
| Hardness | HBW 341 | 
| A 193 347LN Class 1 Round bar: | 1mm-800mm | 
| A 193 347LN Class 1 Square bar: | 10mm * 10mm-600mm *600mm | 
| A 193 347LN Class 1 Flat bar: | Thickness:8mm-800mm Width:10mm to 1500mm | 
| A 193 347LN Class 1 Sheet or Plate: | Thickness:3mm-80mm Width:1.5mm to 1500mm | 
| A 193 347LN Class 1 Strip or Coil: | Thickness:0.1mm-3mm Width:1.5mm-1500mm | 
| A 193 347LN Class 1 Forgings: | Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes |