Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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ASTM A249 TP321 Stainless Steel Welded Tube For Pressure tank
YUHONG GROUP is one of the leading Supplier of Stainless Steel 321 Welded Tubes that is being made up from High Quality of Standard Raw Materials.
These Stainless Steel ASTM A269 TP 321 Welded Tubes are resistant to inter-granular corrosion when gets heated in the carbide precipitation range.
ASTM A249 TP SS 321 Welded Tubes are also having superior properties of elevated temperature than SS 304.
321 Stainless Steel Welded Tubes is often used in furnace heat treated parts, jet engine parts, expansion joints, oil refiners, turbo superchargers, elevated temperature chemical production equipment and exhaust manifolds.
Equivalent Material:
| AISI/ SUS | UNS | WNR. / DIN | EN | JIS | GB |
|---|---|---|---|---|---|
| 321 | 32100 | 1.4541 | X6CrNiTi18-10 | SUS321 | 0Cr18Ni10Ti |
Chemical Composition:
| SA 249 | C | SI | MN | P | S | CR | NI | TI | N |
|---|---|---|---|---|---|---|---|---|---|
| TP321 | 0.08 | 1.00 | 2.00 | 0.045 | 0.030 | 17.0/19.0 | 9.0/12.0 | 5 X C Min – 0.70 Max | 0.10 |
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 | ||||
| 321 | 515 | 205 | 40% | 95 | 217 |
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 | |||||
| 321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
Applications:
-Petrochemical
-Oil & Gas
-Paper
-Refineries
-Nuclear Power
-Cement
-Sugar
-Power Plant
-Fertilizers
-Breweries