Boiler tubes, superheater tubes, main steam pipe, reheat pipe, and feedwater pipe for fossil fuel, nuclear, and combined-cycle power plants. ASME/ASTM-certified carbon and alloy steel pipe from Sino East Steel.
Power generation is one of the most demanding applications for steel pipe — extreme temperatures, high pressures, cyclic operation, and the absolute requirement for reliability over decades of service. Sino East Steel supplies the complete range of carbon, alloy, and stainless steel pipe and tube required for every system within a modern power plant, all manufactured to ASME Boiler and Pressure Vessel Code standards.
The boiler is the heart of any thermal power plant. Waterwall tubes (ASTM A192) form the furnace enclosure, absorbing radiant heat while containing water/steam at high pressure. Economizer tubes recover waste heat from flue gas to preheat feedwater. Both applications demand seamless carbon steel tubes with uniform wall thickness, excellent surface quality, and proven pressure integrity.
Superheater and reheater tubes operate at the highest temperatures in the plant — up to 620°C in ultra-supercritical units. Alloy steel tubes (ASTM A213 T11, T22, T91) provide the necessary creep strength and oxidation resistance at these elevated temperatures. Tube bending, stringent ovality control, and 100% NDT are standard requirements.
Main steam and hot reheat pipes connect the boiler to the turbine, carrying steam at the highest pressure and temperature conditions in the plant. ASTM A335 P91 (9Cr-1Mo-V) is the standard material for modern supercritical and USC plants, offering superior creep strength that enables thinner walls and reduced thermal stresses compared to the older P22 grade.
Feedwater piping (ASTM A106 Gr B/C) delivers high-pressure water to the boiler. Condensate, cooling water, and auxiliary system piping use carbon steel and, where required for corrosion resistance, stainless steel pipe. All systems must comply with ASME B31.1 Power Piping Code requirements.
| Standard | Material | Application | Max Temp |
|---|---|---|---|
| ASTM A192 / ASME SA192 | Carbon Steel | Waterwall, economizer tubes | ~450°C |
| ASTM A210 / ASME SA210 | Carbon Steel (Gr A1, C) | Boiler & superheater tubes (medium temp) | ~480°C |
| ASTM A213 T11 / SA213 T11 | 1.25Cr-0.5Mo | Superheater, reheater tubes | ~550°C |
| ASTM A213 T22 / SA213 T22 | 2.25Cr-1Mo | Superheater, reheater tubes | ~580°C |
| ASTM A213 T91 / SA213 T91 | 9Cr-1Mo-V | High-temp superheater/reheater | ~620°C |
| ASTM A335 P11 | 1.25Cr-0.5Mo | Main steam pipe (subcritical) | ~550°C |
| ASTM A335 P22 | 2.25Cr-1Mo | Main steam pipe (sub/supercritical) | ~580°C |
| ASTM A335 P91 | 9Cr-1Mo-V | Main steam & hot reheat (SC/USC) | ~620°C |
| ASTM A106 Gr B/C | Carbon Steel | Feedwater, balance of plant | ~430°C |
Seamless carbon and alloy steel tubes for waterwall, superheater, reheater, and economizer. Full ASME certification.
ASTM A335 chrome-moly alloy pipe for main steam, hot reheat, and high-temperature headers. PMI verified.
ASTM A106 Gr B/C seamless pipe for feedwater, condensate, and balance-of-plant systems. ASME B31.1 compliant.
Seamless carbon steel pipe for high-temperature process piping and steam service. NACE MR0175 sour service option.
Alloy butt-weld fittings (A234 WP11/WP22/WP91) and flanges (A182 F11/F22/F91) for power piping connections.
Contact our power generation team for ASME-certified boiler tubes, alloy pipe, MTR documentation, and a competitive quotation.
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