ASME SA213 TP321H Stainless Steel Tubing
Nov 14, 2024
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ASME SA213 TP321H Stainless Steel Tubing
TP321H stainless steel tubes have a wide range of specifications, with outer diameters from 6mm to 762mm and wall thicknesses from 0.5mm to 50mm. Lengths can reach 18000mm, and special specifications can be negotiated for production and supply.
In addition, TP321H stainless heat exchanger tubes have also undergone hydraulic tests and intergranular corrosion tests to ensure their quality and corrosion resistance.
ASTM A213 SS 321H Equivalent
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 321H | S32109 | 321S51 | – | 1.4878 | X10CrNiTi18-10 | – | SUS 321H |
ASTM A213 SS 321H Seamless Tube Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other | |
| 321H | min. max |
0.04 0.10 |
2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 |
– | 9.0 12.0 |
– | Ti=4(C+N) 0.70 |
ASTM A213 TP321H Stainless Steel Seamless Tube Physical Properties
| Grade | Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Co-eff of Thermal Expansion (µm/m/°C) | Thermal Conductivity (W/m.K) |
Specific Heat 0-100°C (J/kg.K) |
Elec Resistivity (nΩ.m) |
|||
| 0-100°C | 0-315°C | 0-538°C | At 100°C | At 500°C | |||||
| 321H | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
ASTM A213 Stainless Steel 321H Seamless Tube Mechanical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max |
Brinell (HB) max |
||||
| 321H | 515 | 205 | 40 | 95 | 217 |







