Description

Boiler steel pipes are critical pressure-bearing components used in boilers and thermal equipment for conveying high-temperature, high-pressure media. Their materials must possess good high-temperature strength, oxidation resistance, and structural stability.

Boiler Steel Pipe Tube Standards and Materials:

1. Chinese Standards and Materials for Boiler Steel Pipe:

– GB/T 3087-2022 “Seamless Steel Tubes for Low and Medium Pressure Boilers”

– Applicable pressure ≤ 5.88 MPa, temperature ≤ 450℃

– Commonly used materials: 10, 20, 20G, 20MnG

– GB/T 5310-2023 “Seamless Steel Tubes for High Pressure Boilers” (Latest version, implemented April 1, 2024)

– Applicable pressure > 9.8 MPa, temperature 450℃～650℃

– Commonly used materials:

– Carbon steel: 20G, 20MnG, 25MnG

– Alloy steel: 15CrMoG, 12CrMoG, 12Cr2MoG, 12Cr1MoVG, 12Cr3MoVSiTiB

– Stainless and heat-resistant steel: 1Cr18Ni9, 1Cr18Ni11Nb

– GB/T 13296-2018 “Seamless Stainless Steel Tubes for Boilers and Heat Exchangers”

– For corrosive or high-temperature and high-pressure environments

– Commonly used materials: 0Cr18Ni9 (304), 0Cr18Ni12Mo2Ti (316Ti), 0Cr17Ni12Mo2 (316L)

2. Boiler Steel Pipe American Standards (ASTM/ASME) and Materials:

– ASTM A106 / ASME SA106 Seamless Steel Tube

– Suitable for high-temperature and high-pressure fluid transportation

– Commonly used grades: Gr.B (corresponding to 20G), carbon manganese steel, tensile strength ≥ 415 MPa, operating temperature ≤ 450℃

– ASTM A213 / ASME SA213 Boiler Steel Pipe Tube

– Seamless ferritic/austenitic alloy steel tubes for boilers, superheaters, and heat exchangers – Commonly Used Grades:

– T11, T22 (similar to 15CrMoG)

– T91, T92 (for ultra-supercritical boilers)

– TP304H, TP347H (austenitic stainless steel)

– ASTM A335 / ASME SA335

– Seamless Alloy Steel Pipes for High Temperature Use

– Commonly Used Grades: P11, P22, P91, P92

3. Boiler Steel Pipe European Standards (EN) and Materials:

– EN 10216-2:2014 Seamless steel tubes for pressure applications — Part 2: Non-alloy and alloy steel tubes specifying high-temperature properties

– Commonly Used Steel Grades:

– 16Mo3 (corresponding to 15MoG)

– 13CrMo4-4 (corresponding to 15CrMoG)

– 10CrMo9-10 (corresponding to 12CrMoVG)

– EN 10216-3 “Non-alloy steel pipes specifying low-temperature performance”

– Used in low-temperature superheaters or headers

4. Boiler Steel Pipe Japanese Standards (JIS) and Materials:

– JIS G3461 “Carbon steel tubes for boilers”

– Corresponds to STB42 (similar to 20G)

– JIS G3462 “Alloy steel tubes for boilers”

– Commonly used steel grades: STBA23, STBA24 (similar to 12Cr1MoVG)

– JIS G3463 “Austenitic stainless steel tubes for boilers and heat exchangers”

– Corresponds to SUS304H, SUS321H

5. Internationally Common and Special Alloys for Boiler Steel Pipes:

– Austenitic heat-resistant stainless steel (for ultra-supercritical units)

– S30432 (HR3C similar), 310S/H, 347H, operating temperatures up to 700℃

– Standards: GB/T 5310-2023, ASTM A213, ASME SA213

– New type of chromium-molybdenum-vanadium-tungsten-boron steel (e.g., 12Cr2MoWVTiB / G102)

– Operating temperature ≤620℃, domestically developed, as specified in GB/T 5310

Standards

Outer Diameter	6-2500mm (1/2-48),etc
Wall Thickness	1-150mm (SCH10-SCHXXS),etc
Length	1-12m, etc
The special sizes can be customized as per the client’s requirements.
Shape	rectangular,square,hexagonal,round,oval,etc
Surface Finish	black painted,PE painted,galvanized,color coated,anodized,anti-rust varnished,anti-rust oiled,etc
Material	GB 10, 20, 35, 45, Q295, Q345, 16MnDG, 10MnDG, 09DG, 09Mn2VDG, 06Ni3MoDG, 20G, 20MnG, 25MnG, 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, 12Cr2MoWVTiB, 12Cr3MoVSiTiB, 1Cr9Mo1VNb, 16Mn, 15MnV, 10MoWVNb, 40Mn2, 45Mn2, 27SiMn, 40MnB, 45MnB, 20Mn2B, 20Cr, 30Cr, 35Cr, 40Cr, 45Cr, 50Cr, 38CrSi, 12CrMo, 15CrMo, 20CrMo, 35CrMo, 42CrMo, 12CrMoV, 12Cr1MoV, 38CrMoAl, 50CrVA, 20CrMn, 20CrMnSi, 30CrMnSi, 20CrMnTi, 30CrMnTi, 12CrNi2, 12CrNi3, 12CrNi4, 40CrNiMoA, 45CrNiMoVA, 1Cr5Mo, 12Cr2Mo, etc
	DIN EN St37, St37-2, St37-3U, St37-3N., RSt-2, USt37-2, St35, St45, TTSt35N, TTSt35V, 26CrMo4, 11MnNi5-3, 13MnNi6-3, 10Ni14, 12Ni19, X8Ni9, St35.8, St45.8, 19Mn5, 17Mn4, 15Mo3, 13CrMo44, 10CrMo9-10, 14MoV63, X20CrMoV12, 25CrMo4, 13CrMo4-4, 10CrMo9-10, 12CrMo9-10, 12CrMo12-10, 12CrMo19-5, X12CrMo9-1, 20CrMoV13-5, X20CrMoV12-1, etc
	ASTM ASTM A209/A209M (T1,T1A,T1B), ASTM A213 (T2, T5, T5b, T5c, T9, T11, T12, T17, T21, T22, T91, T92,), ASTM A335/A335M (P1, P2, P5, P5b, P5c, P9, P11, P12, P15, P21, P22, P23, P91, P92, P122, P911), ASTM A199 T11, T22, T9, ASTM A200 T5, T9, T11, T22, ASTM A106 A/B/C, ASTM A500 A/B/C/D, ASTM A53 A/B, ASTM A179, ASTM A192, ASTM A178 C, ASTM A210 A1/C, etc
	JIS STBA12/13/20/22/23/24/25/26, STB340/410/510, STS370/410/480, STPG370/410, STBL380/450/690, STPT370/410/480, STPL380/450/690, etc.