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Superheater tubes and reheater tubes in a comprehensive range of stainless steels and nickel alloys covering outside diameters 12 to 260 mm (0.472 to 10.24 in.).
Sandvik superheater tube and reheater tube materials cover all types of fuel, such as coal, gas, oil, black liquor and biomass. The Sandvik program also includes composite tubes consisting of two different alloys fully bonded together.
Increased efficiency in coal-fired power boilers
Our new material Sanicro 25 is engineered for the next generation of coal-fired power boilers, contributing to significantly greater efficiency and sharply lower CO2 emissions. It is ideal for superheater and reheater tubes, allowing for material temperatures of up to 700ºC (1290ºF).
Below are the most typical applications for Sandvik superheater and reheater tubes.
| Sandvik grade | Typical applications |
|---|---|
| Sanicro 25 (UNS S31035) |
Superheater and reheater tubes in the next generation of coal-fired power boilers for material temperatures of up to 700ºC (1290ºF). |
| Sanicro 31HT (UNS N08811/N08810) |
Superheater and reheater tubes in boilers with corrosive conditions. |
| Sanicro 41 (UNS N08825) |
Superheater and reheater tubes in boilers with corrosive conditions. Sanicro 41 is generally more resistant to flue gases compared to Sanicro 31HT. |
| Sanicro 28 (UNS 08028, EN 1.4563) |
Radiant syngas coolers in IGCC gasification. Superheater tubes in boilers with corrosive conditions. The high chromium content of Sanicro 28 contributes to high gas corrosion resistance. |
| Sanicro 30 (UNS N08800) |
Radiant syngas coolers in IGCC gasification. |
| Esshete 1250 (EN 1.4982) |
Superheater and reheater tubes in sub-critical and supercritical coal-fired, biomass and other boilers. Sandvik Esshete 1250 has higher creep strength than most other alloys. |
| Sandvik 7RE10 (UNS S31008/S31009) |
Superheater tubes in boilers with corrosive conditions. |
| Sandvik 3R69 BT** (EN 1.4910) |
Superheater and reheater tubes in sub-critical and supercritical coal-fired boilers. |
| Sandvik 8R61 (EN 1.4918) |
Superheater and reheater tubes in sub-critical coal-fired boilers and other boilers. |
| Sandvik 6LR62 (UNS S31600/S31609) |
Superheater and reheater tubes in sub-critical coal-fired boilers and other boilers. |
| Sandvik 8R41 (EN 1.4961) |
Superheater and reheater tubes in sub-critical coal-fired boilers and other boilers. |
| Sandvik 8R40 (UNS S34709, ASTM 347H) |
Superheater and reheater tubes in sub-critical coal-fired, biomass and other boilers. Sandvik 8R40 can also be supplied in a fine-grain version. |
| Sandvik 6R44 (UNS S34709, ASTM 347H) |
Superheater and reheater tubes in sub-critical coal-fired, biomass and other boilers. |
| Sandvik 6R35 (UNS S32109, ASTM 321H) |
Superheater and reheater tubes in sub-critical coal-fired boilers and other boilers. |
| Sandvik 5R10 (UNS S30409, ASTM 304H) |
Superheater and reheater tubes in sub-critical coal-fired boilers and other boilers. |
*Esshete 1250 is a trademark owned by Corus
Beverage Industries 