ASTM A554 TP304 Stainless Steel Welded Pipe supplier
ASTM A554 is the standard specification for TP304 grade stainless steel welded mechanical tubing, suitable for structural, decorative, and other applications requiring good mechanical properties and corrosion resistance.
ASTM A554 TP304 tubing is manufactured using automated welding processes on flat rolled steel sheets, typically without filler metal, and is available in various shapes including round, square, and rectangular. A key requirement is that the weld seam be cold-worked to improve strength and durability. The tubing undergoes bright annealing (BA) or pickling annealing to ensure a high-quality surface finish and excellent formability. These tubings range in outer diameter from 12.7 mm to 219.1 mm (1/2"–8"), with larger custom sizes available, and wall thickness from 0.5 mm to 3.0 mm. They are particularly suitable for applications requiring high aesthetic and durability performance.
What is ASTM A554 specification?
ASTM A554 specification covers as welded or cold-reduced mechanical tubing in sizes to 16 inch (406.4 mm) outside dimension and in wall thicknesses 0.020 inch (0.51 mm). ASTM A554 Welded Mechanical Tubing made from flat-rolled steel by an automatic welding process without the addition of filler metal.
Specifications:
ASTM A554 TP304 Stainless Steel Welded Tube Chemical Composition
| 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 |
SA554 Grade Mt 304 Tubing Mechanical Properties
| 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 |
ASME SA554 Tp304 Square Pipe Equivalent
| 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 |
ASTM A554 Type 304 Tube Physical Properties
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 |
Applications of ASTM A554 TP304 Welded Pipes:
1. Food Processing Industry
2. Pharmaceutical Industry
3. Chemical Processing Industry
4. Oil and Gas Industry
5. Architecture and Construction
6. Marine Applications
7. Heating, Ventilation, and Air Conditioning
8. Water Treatment Plants
9. Agricultural Equipment
Testing and Inspection
Nondestructive Testing: 100% radiographic testing (RT) or ultrasonic testing (UT) in accordance with ASTM E164/E213; weld penetrant testing (PT) in accordance with ASTM E165
Pressure Testing: Hydrostatic testing at ≥1.5 times the design pressure in accordance with the general requirements of ASTM A450
Surface Quality: Ensure the absence of cracks, lack of fusion, and other defects, and the inner surface should have a smooth transition.
Highest quality packaging and shipping
Protective Packaging: Moisture-proof film, steel straps, and wooden pallets or cases for export.
Marking & Labeling: Each pipe labeled with standard, grade, size, and heat number.
Customer Visit
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