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| ITEM | Standard Number | Descriptions |
|---|---|---|
| 1 | A 213/A 213M (2011) | Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.04 | 0.10 | ||
| Si | 0.75 | |||
| Mn | 2.00 | |||
| P | 0.045 | |||
| S | 0.03 | |||
| Cr | 22.0 | 24.0 | ||
| Ni | 12.0 | 16.0 | ||
| Nb | 1.100 |
| Tensile strength | 606～957 | σb/MPa |
| Yield Strength | 799 | σ 0.2 ≥/MPa |
| Elongation | 31 | δ5≥(％) |
| ψ | - | ψ≥(％) |
| Akv | - | Akv≥/J |
| HBS | 057～991 | - |
| HRC | 30 | - |
| Thermal expansion | 92-72 | e-6/K |
| Thermal conductivity | 40-24 | W/m.K |
| Specific heat | 450-460 | J/kg.K |
| Melting temperature | 4893-7323 | 째C |
| Density | 4189-5636 | kg/m3 |
| Resistivity | 0.50-0.60 | Ohm.mm2/m |
| Steel Grade | Specification | Processing range(mm) |
| A 213 TP309HCb Stainless Steels | Round Bar and Hollow Bar | Φ1 to Φ2000 |
| Square and Flat Steel | Φ10 to Φ100 | |
| Plate and Sheet | 0.08-800(Thickness)*10-1500(Width)*Length | |
| Tube or Pipe | OD:Φ4-410; WT:1-35 mm; Lenght:10-12000 | |
| Coil and Strip Steel | THK:0.1mm Width:1500mm | |
| Forged | Ring/Cylindrical/Disk |
