Global Standards for Boiler Tubes Explained

Boiler tubes are mainly used to manufacture superheaters, reheaters, water walls, economizers, etc., for supercritical or ultra-supercritical boilers. The steel tubes are required to have high creep strength, high resistance to oxidation and corrosion, and good structural stability.
 

Main Grades or Steel Grades

EN10216-2: P195GH, P235GH, P265GH, 20MnNb6, 16Mo3, 8MoB5-4, 14MoV6-3, 10CrMo5-5, 13CrMo4-5, 10CrMo9-10, 11CrMo9-10, 25CrMo4, 20CrMoV13-5-5, X11CrMo5+1, X11CrMo5+NT1, X11CrMo5+NT2, X11CrMo9-1+1, X11CrMo9-1+NT, X10CrMoVNb9-1, X20CrNiV11-1
JIS G3454: STPG 370 (STPG 38), STPG 410 (STPG 42)
JIS G3461: STB 35, STB 42, STB 52
JIS G3462: STBA12, STBA13, STBA20, STBA22, STBA23, STBA24, STBA25, STBA26
 

Execution Standard

Standard: EN10216-2—Alloy and non-alloy steel tubes specifying high-temperature performance
JIS G3454: Carbon steel tubes for pressure piping
JIS G3461: Carbon steel tubes for boilers and heat exchangers
JIS G3462: Alloy steel tubes for boilers and heat exchangers
 

American Standards for Boiler Tubes

Standards Implemented:
SA-179/SA-179M Seamless cold-drawn low-carbon steel tubes for heat exchangers and condensers

SA-192/SA-192M Seamless carbon steel boiler tubes for high-pressure applications

SA-209/SA-209M Seamless carbon-molybdenum alloy steel tubes for boilers and superheaters

SA-210/SA-210M Seamless medium-carbon steel tubes for boilers and superheaters

SA-213/SA-213M Seamless ferritic and austenitic alloy steel tubes for boilers, superheaters and heat exchangers
 

Product Features

Boiler tubes are frequently subjected to high temperature and high pressure conditions. Under the influence of high-temperature flue gas and steam, the tubes will undergo oxidation and corrosion. Therefore, boiler steel tubes have high creep strength, high resistance to oxidation and corrosion, and good structural stability.

Specifications
Outer diameter Φ15.88~89mm, wall thickness 2.6~12.5mm

Main Grades or Steel Grades of American Standard High-Pressure Boiler Tubes

Commonly Used Grades: SA-179M, SA-192M, SA-209M T1a, SA-210M Gr.C, SA-210M Gr.A1, SA-213M T11, SA-213M T12, SA-213M T22, SA-213M T23, SA-213M T91