ASME SA213 TP316L Heat Exchanger Seamless Tube 1.4404,X2CrNiMo17-12-2
ASME SA213 TP316L is the designated standard and grade for seamless stainless steel tubes used in high-end applications such as power plant boilers, petrochemical plants, and nuclear power plants, for manufacturing equipment such as heat exchangers, condensers, and superheaters.
It typically employs cold rolling or cold drawing seamless processes to ensure dimensional accuracy and surface quality.
The ASME SA213 standard is specifically designed for boilers and heat exchangers operating at high temperatures and pressures.
Chemical Composition
| Element |
Composition (% by weight) |
| Carbon (C) |
0.035 max |
| Manganese (Mn) |
2.00 max |
| Phosphorus (P) |
0.045 max |
| Sulfur (S) |
0.030 max |
| Silicon (Si) |
1.00 max |
| Nickel (Ni) |
10.0 – 14.0 |
| Chromium (Cr) |
16.0 – 18.0 |
| Molybdenum (Mo) |
2.00 – 3.00 |
Mechanical Properties
| Property |
Value |
| Tensile Strength (min.) |
485 MPa (70 ksi) |
| Yield Strength (0.2% offset, min.) |
170 MPa (25 ksi) |
| Elongation (in 2 inches or 50 mm, min.) |
35% |
| Hardness (max.) |
90 HRB (Rockwell B) |
Applications:
Heat Exchangers
Condensers
Reboilers
Feedwater Heaters
Moisture Separator Reheaters
The tubes are often fabricated into specific shapes:
U-Bent Tubes: As mentioned earlier, this is the most common form for large shell-and-tube heat exchangers to eliminate welds.
Long Length Coils: Used in tank heating/cooling or in air coolers.
Finned Tubes: For air-cooled heat exchangers (often with aluminum or steel fins attached to the stainless steel tube).
