Global standards for boiler tubes

Boiler tubes are essential components used in the manufacture of superheaters, reheaters, water walls, and economizers for supercritical and ultra-supercritical boilers. These tubes are required to operate under high temperature and high pressure for extended periods, demanding exceptional creep strength, oxidation resistance, corrosion resistance, and structural stability to ensure long-term reliability in power generation and industrial processes.

Main Grades of Boiler Tubes

1. EN10216-2 Standard (Alloy and Non-Alloy Steel Tubes for High-Temperature Service)

Common grades include:
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

2. JIS Standards (Japanese Industrial Standards)

JIS G3454: STPG 370 (STPG 38), STPG 410 (STPG 42) — Carbon steel tubes for pressure piping

JIS G3461: STB 35, STB 42, STB 52 — Carbon steel tubes for boilers and heat exchangers

JIS G3462: STBA12, STBA13, STBA20, STBA22, STBA23, STBA24, STBA25, STBA26 — Alloy steel tubes for boilers and heat exchangers

Execution Standards

American Standards for Boiler Tubes

The following ASME/ASTM standards define the requirements for boiler tubes used in power and pressure systems:

Product Features

Boiler tubes are frequently subjected to high-temperature flue gas and steam, which can lead to oxidation, corrosion, and creep deformation. To ensure safe and efficient operation under such conditions, boiler tubes are designed to provide:

High creep strength for long-term operation under stress

Excellent resistance to oxidation and corrosion at elevated temperatures

Good structural stability to maintain mechanical integrity over extended service life

Specifications

Outer Diameter: Φ15.88 mm – 89 mm

Wall Thickness: 2.6 mm – 12.5 mm

These dimensions are customizable according to design requirements and application needs.

Common Grades of American Standard High-Pressure Boiler Tubes

The most widely used grades under American standards include:
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.

These materials are chosen based on their thermal stability, pressure resistance, and corrosion protection, ensuring dependable performance in supercritical and ultra-supercritical boilers.

Summary

Boiler tubes play a vital role in modern power plants and industrial systems, where efficiency, strength, and durability are essential. Whether produced to EN10216-2, JIS, or ASME/ASTM standards, these tubes provide reliable solutions for high-temperature and high-pressure environments, ensuring long service life and consistent performance in superheaters, reheaters, economizers, and water wall systems.