Specification of ASTM A269 TP304/304L Welded Stainless Tubes
1. Name of material:TP304/304L Welded Stainless Tubes
2. Grade: conform to the requirements as to chemical composition as prescribed in Table 1 of A269
3. Tolerance of outside diameter, wall thickness, length as per Table 3 of A269
4. Condition: hot finished or cold finfished.
5. Insoection and testing
Chemical composition
Mechanical test-flaring test(seamless tubes),flange test(welded tubes), hardness(Rockwell, Brinell)
Reverse flattening test
Hydrostatic or Nondestructive test
6. Surface condition-pickling, if bright annealing required, pickling not necessary.
TP304/304L Welded Stainless Tubes:
OD | wall | length | |
＜38.1mm | ±0.13mm | OD＜12.7mm ±15% OD≥12.7mm ±10% | OD＜38.1mm +3.20mm -0mm OD≥38.1mm +4.80 -0mm |
≥38.1mm~88.9mm | ±0.25mm | ||
≥88.9mm~139.7mm | ±0.38mm | ||
≥139.7mm~203.7mm | ±0.76mm | ||
≥203.7mm~304.8mm | ±1.01mm | ||
≥304.8mm~355.6mm | ±1.26mm | ||
PREVIOUS:TP304/304L Welded Stainless Tubes
Manufacturing process of welded and drawn stainless steel tubes:
Coil - Inspection and analysis - Slitting - Auto-welding - Seam-grinding - Solution treatment on line - Cut to length - Annealing - Straightening - Picking - End-facing - Eddy current test - Hydrostatic test - Final inspection - Marking - Packing - Shipping
Plate - Inspection - Plasma-cutting - Edging - Bending - Seam- cleaning - Forming - Auto- welding - Degreasing - Annealing - Roundness-calibrating -End-facing - Eddy current test - Hydrostatic test - Final inspection - Marking - Packing - Shipping
Application of drwan and welded stainless steel tubes:
General service
Curatorial Industry
Food Industry
Ornamental
Aerospace Industry
Petrochemical
Fluid transport
Nuclear Industr
Boiler heat- exchanger
Oil and gas service
