ASTM A312 TP321H Titanium Stabilized Stainless Steel Seamless Pipe SCH80 High Temperature Creep Resistant
ASTM A312 TP321H is the high carbon titanium stabilized grade, with a carbon range of 0.04% to 0.10%. The higher carbon and controlled titanium content deliver superior creep and rupture strength for long term elevated temperature service.
TP321H pipe is solution annealed with a coarse grain structure to maximize high temperature performance, and is widely used for superheater and reheater tubing in power and process plants.
| Element | ASTM A312 TP321H (%) |
|---|---|
| Carbon (C) | 0.04 - 0.10 |
| Silicon (Si) | 0.75 max |
| Manganese (Mn) | 2.00 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
| Chromium (Cr) | 17.0 - 19.0 |
| Nickel (Ni) | 9.0 - 12.0 |
| Titanium (Ti) | 4 x C min |
| Nitrogen (N) | 0.10 max |
| Property | Unit | Value |
|---|---|---|
| Tensile Strength, min. | MPa (ksi) | 515 (75) |
| Yield Strength (0.2% offset), min. | MPa (ksi) | 205 (30) |
| Elongation in 2 in. or 50 mm, min. | % | 35 |
| Hardness, max. | HRB | 90 |
- Superheater and reheater tubing in power plants
- High temperature steam piping and headers
- Refinery and petrochemical elevated temperature service
- Industrial furnace and radiant tube systems
- Heat exchangers in chemical and power plants
- High temperature gas turbine and exhaust ducting
For ASTM A312 TP321H stainless steel pipe, please send us your required size (OD x WT), schedule, surface finish and quantity. Our team replies within 24 hours with a competitive quotation and full mill test certificates.
Email: zhongcheng@metalsstainlesssteel.com
Standard: ASTM A312 / ASME SA312
Type: Seamless & Welded
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