| Material Grade: | TP304 | Standard: | ASTM A554 |
|---|---|---|---|
| Size: | 1/2 ”to 8”mm | W.T.: | 0.049 – 0.375 Inch |
| Length: | Single Random， Double Random & Required Length | NDT: | ET HT UT PT |
| Packing: | Ply-wooden Case /Iron Case/ Bundle | Appllication: | Petroleum Refineries/natural-gas Processing/space Heating |
| High Light: | TP304 Welded Stainless Steel Pipe， Stainless Steel Welded Tube ASTM A554， Petrochemical Oil Stainless Steel Welded Tube | ||
Stainless Steel Welded Tube ASTM A554 TP304 Water engineering petrochemical Oil
What is Welded tube?
Welded steel pipe， also known as welded tube， is a steel pipe made of steel plate or strip after roll forming and welding， generally 6 meters in fixed length. Welded steel tube production process is simple， high production efficiency， a variety of specifications， less investment in equipment， but generally lower strength than seamless steel tube
Chemical Composition of ASTM A249 TP321 Stainless Steel Welded Tubes
| Grade | Carbon | Nickel | Manganese | Sulfur | Chromium | Phosphorus | Silicon |
| 304 | 0.08 | 8.0-11.0 | 2 | 0.03 | 18.0-20.0 | 0.045 | 1 |
Mechanical Property of ASTM A554 TP304 Stainless Steel Welded Tubes
| Material | Temperure | Heat | Yield Strength | Tensile Strength | Elongation |
| Min.º F(º C) | Treatment | Ksi (MPa)， Min. | Ksi (MPa)， Min. | ||
| 304 | 1900 (1040) | Solution | 30(205) | 75(515) | 35 |
Equivalent Grades of ASTM A554 TP304 Stainless Steel Welded Tubes
| Grade | Unified Numbering System | Euronorm | Old British | Swedish SS | Japanese Industrial Standards | ||
| No | Name | British Standards | European Standards | ||||
| ASTM A554 TP304 | S30400 | 1.4301 | X5CrNi18-10 | 304S31 | 58E | 2332 | SUS 304 |
Physical Properties of ASTM A554 TP304 Stainless Steel Welded Tubes
| Grade | Mean Coefficient of Thermal Expansion (μm/m/°C) | Density (kg/m3) | Elastic Modulus (GPa) | Specific Heat 0-100°C (J/kg.K) | Thermal Conductivity (W/m.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| TP304 | 17.2 | 17.8 | 18.4 | 8000 | 193 | 500 | 16.2 | 21.5 | 720 |
ASTM A554 TP304 Stainless Steel Welded Tubes APPLICATION
Water engineering
petrochemical
Oil
Heat Exchanger Tube
Condenser
