ASTM A312 TP304L Stainless Steel Seamless Pipe SCH10 Annealed Pickled Low Carbon
Product Overview
ASTM A312 TP304L is the low carbon version of the 304 grade, with a carbon content of 0.035% maximum. This chemistry greatly reduces the risk of intergranular carbide precipitation, so the pipe maintains its corrosion resistance even after welding without requiring post-weld annealing.
TP304L pipe is widely chosen for fabricated pipework and welded assemblies where field welding is unavoidable, offering excellent toughness from cryogenic temperatures up to approximately 870°C in continuous service.
Chemical Composition
| Element |
ASTM A312 TP304L (%) |
| Carbon (C) |
0.035 max |
| Silicon (Si) |
0.75 max |
| Manganese (Mn) |
2.00 max |
| Phosphorus (P) |
0.045 max |
| Sulfur (S) |
0.030 max |
| Chromium (Cr) |
18.0 - 20.0 |
| Nickel (Ni) |
8.0 - 12.0 |
Mechanical Properties
| Property |
Unit |
Value |
| Tensile Strength, min. |
MPa (ksi) |
485 (70) |
| Yield Strength (0.2% offset), min. |
MPa (ksi) |
170 (25) |
| Elongation in 2 in. or 50 mm, min. |
% |
35 |
| Hardness, max. |
HRB |
90 |
Applications
- Welded pipework and fabricated assemblies without post-weld heat treatment
- Chemical and petrochemical process piping
- Food and beverage processing equipment and piping
- Water, waste water and desalination systems
- Pharmaceutical and sanitary welded lines
- Heat exchangers, condensers and storage tanks