High Pressure Boiler Tube ASTM Certified Mill Direct | Kuaima Steel Group

Kuaima Steel Co., Ltd.

Verified Custom manufacturer · 7 yrs ·

China

Customizable Rock-bottom price

$570 1-49 ton Base price

$545 50-99 ton 4.4% off

$532 ≥100 ton 6.7% off

Price validity: subject to market conditions

Supplier's customization ability

Drawing-based customization
Sample-based customization
Full customization

Quantity

Minimum order quantity: 1 ton

Shipping total: To be negotiated

Subtotal of goods US$ 570.00

Start order request

Payment and delivery

Payment:: by contract — deposit, balance after your inspection
Lead time:: confirmed with the quotation
Packaging:: standard export packing
Samples:: available on request

Product details

Technical Specifications of High Pressure Boiler Tube

Property	Parameter	Description
Product Name	High Pressure Boiler Tube	Seamless steel tube designed for high pressure boiler and superheater service
Material Grade	ASTM A335 P11 / P22 / P91	Equivalent to EN 10216-2 13CrMo4-5 / 10CrMo9-10 / X10CrMoVNb9-1, GB 5310 15CrMoG / 12Cr2MoG / 12Cr1MoVG
Standard Compliance	ASTM A335 / ASME SA335	Also available per EN 10216-2, JIS G3462 STBA, GB 5310
Carbon (C)	0.05 – 0.15%	Per ASTM A335 P11 specification; varies by grade
Manganese (Mn)	0.30 – 0.60%	Enhances strength and hardenability
Chromium (Cr)	1.00 – 9.50%	Provides oxidation and high-temperature corrosion resistance; P11: 1.00–1.50%, P91: 8.00–9.50%
Molybdenum (Mo)	0.44 – 1.10%	Improves creep resistance at elevated temperatures
Phosphorus (P) / Sulfur (S)	≤ 0.025% / ≤ 0.025%	Controlled to ensure weldability and toughness
Tensile Strength	415 – 620 MPa	P11: ≥ 415 MPa, P22: ≥ 415 MPa, P91: ≥ 585 MPa per ASTM A335
Yield Strength	205 – 415 MPa	P11: ≥ 205 MPa, P22: ≥ 205 MPa, P91: ≥ 415 MPa per ASTM A335
Elongation	≥ 20%	Minimum elongation in 50 mm gauge length per applicable standard
Dimensions (OD × WT × Length)	OD: 12.7 – 914 mm, WT: 2.0 – 100 mm, L: 4 – 18 m	Custom sizes available upon request; cut-to-length service offered
Surface Finish	Black painted / Oiled / Varnished	Beveled or plain ends; internal surface cleaned for boiler service
Application	High pressure boilers, superheaters, reheaters, petrochemical heat exchangers	Suitable for service temperatures up to 600 °C depending on grade
Certification	ISO 9001, PED 2014/68/EU, TÜV, Lloyd's, BV	Mill test certificate EN 10204 3.1 / 3.2 supplied with each shipment
Testing	Hydrostatic / Eddy Current / Ultrasonic	100% NDE per ASTM A335; flattening, flaring, and hardness tests included
Packaging	Bundle in hexagonal or square packing	Plastic caps on ends, steel strips bundled, wooden crates for export
MOQ	1 Metric Ton	Smaller quantities negotiable for trial orders

High Pressure Boiler Tube ASTM Certified Mill Direct | Kuaima Steel Group

High pressure boiler tube is an essential component in power generation, petrochemical processing, and industrial heating systems where steam and fluids operate under extreme temperatures and pressures. Manufactured from premium alloy and carbon steel grades, these tubes must meet rigorous ASTM and ASME standards to ensure long-term structural integrity and safety. Kuaima Steel Group supplies mill-direct high pressure boiler tubes with full traceability, competitive pricing, and certified material quality — serving power plants, EPC contractors, and energy infrastructure projects across the globe.

High pressure boiler tube manufacturer

What Is High Pressure Boiler Tube?

A high pressure boiler tube is a seamless steel tube specifically engineered to transport superheated steam, water, and flue gases within boiler systems operating at pressures typically exceeding 9.8 MPa (1,422 psi). These tubes are produced through hot-rolling or cold-drawing processes from killed steel billets, ensuring a homogeneous grain structure free from porosity and inclusions. They serve critical roles in superheaters, reheaters, economizers, and waterwall panels of utility and industrial boilers. The seamless construction eliminates weld-seam vulnerabilities, providing superior resistance to creep rupture and thermal fatigue under sustained high-temperature service conditions.

High Pressure Boiler Tube Technical Specifications

Kuaima Steel Group offers high pressure boiler tubes conforming to the most widely referenced international standards. Below is a comprehensive specification overview:

Parameter	Details
Standards	ASTM A106 Grade B/C, ASTM A335 (P11, P22, P91), ASME SA213 (T11, T22, T91), GB 5310, EN 10216-2
Material Grades	20G, 15CrMoG, 12Cr1MoVG, SA213 T91, SA335 P22, 15Mo3, 13CrMo44
Outer Diameter	6 mm – 630 mm (0.24″ – 24.8″)
Wall Thickness	1.0 mm – 80 mm (0.04″ – 3.15″)
Length	4,000 mm – 18,000 mm; custom cut-to-length available
Manufacturing Process	Hot-rolled seamless / Cold-drawn seamless
Tensile Strength	415 – 620 MPa (varies by grade; e.g., SA213 T22 min. 415 MPa per ASME)
Yield Strength	205 – 415 MPa (e.g., ASTM A106 Gr. B min. 240 MPa)
Max Service Temperature	Up to 650°C (1,202°F) for T91/P91 grade
Surface Finish	Black painted, oiled, varnished, or bare
Testing	Hydrostatic test, ultrasonic (UT), eddy current (ET), flattening, flaring, hardness (HB/HRC)
Certification	EN 10204 3.1/3.2 MTC, ISO 9001, PED 2014/68/EU

Each high pressure boiler tube undergoes 100% non-destructive examination including ultrasonic testing per ASTM E213 and hydrostatic testing at pressures calculated per ASTM A530, ensuring zero-defect delivery. Chemical composition analysis is performed via optical emission spectrometry (OES) with results documented on the mill test certificate.

Key Applications of High Pressure Boiler Tubes

These tubes find extensive application in demanding thermal and energy environments:

Supercritical & ultra-supercritical power plants — waterwall, superheater, and reheater circuits operating above 25 MPa and 600°C
Combined cycle gas turbine (CCGT) heat recovery steam generators (HRSG)
Petrochemical furnaces and cracking units — process heater tubes exposed to high-temperature hydrocarbon streams
Industrial boilers — biomass, coal-fired, and waste-to-energy plants
Nuclear steam supply systems — secondary loop tubing in pressurized water reactors

Why Choose Kuaima Steel Group for Boiler Tubes?

With over 15 years of export experience, Kuaima Steel Group delivers mill-direct high pressure boiler tubes at cost-effective rates without compromising on quality. Our supply chain integrates top-tier Chinese mills (Baosteel, TPCO, Pangang) with in-house quality inspection, ensuring every tube meets the exact specification your project demands. We maintain substantial stock of popular grades including SA213 T22, T91, and 20G for rapid dispatch, while also supporting fully customized orders with third-party inspection by SGS, BV, or Lloyd's.

Frequently Asked Questions

What is the MOQ?

Our minimum order quantity for high pressure boiler tubes is typically 1 metric ton. For rare alloy grades such as SA213 T91 or P91, MOQ may increase to 2–5 tons depending on mill scheduling and dimensions.

High pressure boiler tube supplier

Do you provide material test certificates?

Yes. Every shipment includes EN 10204 Type 3.1 mill test certificates detailing chemical composition, mechanical properties, hydrostatic test results, and NDE reports. Type 3.2 certificates with third-party witness are available upon request.

What is the typical delivery time?

In-stock standard sizes ship within 5–7 business days. Custom-manufactured high pressure boiler tubes typically require 25–40 days from order confirmation, depending on grade, dimensions, and testing requirements.

Can you cut to custom sizes?

Absolutely. We offer precision cut-to-length services from 500 mm up to 18,000 mm, with tolerances per ASTM A530 or tighter upon request. Beveled ends for field welding (30° or 37.5° per ASME B16.25) are also available.

Get a Competitive Quote for High Pressure Boiler Tube

Whether you need ASTM A335 P22 tubes for a supercritical boiler project or GB 5310 20G tubes for an industrial steam system, Kuaima Steel Group provides mill-direct pricing, reliable quality, and global logistics support. Contact our technical sales team today with your specifications — including grade, OD, wall thickness, length, quantity, and required certifications — and receive a detailed quotation within 24 hours.

High pressure boiler tube factory

Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Michael Brennan

United States

2025-01-12

Initial Marking Issue Resolved — Tubes Themselves Were Fine

Ordered 10 tons of SA213 T22 tubes, OD 38.1mm x 5.1mm, for an HRSG project in Texas. The tubes met all mechanical and chemical specs per our ASME requirements. However, roughly 15% of tubes had heat number stenciling that was partially illegible on arrival, which caused a delay with our QA documentation. Kuaima responded quickly, provided supplementary traceability records within 48 hours, and offered to re-stencil at their cost on future shipments. Problem solved, but it cost us two days on site. Tube quality itself was not in question.

Robert Whitfield

United Kingdom

2025-02-14

Decent Value on A106 Grade B Boiler Tubes

Purchased 12 tons of ASTM A106 Grade B seamless tubes, various sizes from OD 33.4mm to 114.3mm, wall thicknesses 4.0–8.6mm, for an economizer retrofit. Pricing was very competitive for the volume. All MTCs checked out — yield strength consistently above 240 MPa minimum. One bundle had minor surface oxidation beyond what we expected for oiled finish, but it was cosmetic only and didn't affect serviceability. Overall a fair deal and we'd consider Kuaima for future procurement rounds.

David Harrington

Australia

2025-03-19

Good Quality P91 Tubes at Competitive Price

Ordered 5 tons of SA335 P91 seamless pipe, OD 219.1mm x 25mm WT, for a waste-to-energy plant reheater section. Quality was solid — hardness, tensile, and creep data all within ASME acceptance. The price was roughly 18% lower than our usual European supplier for equivalent Baosteel material. Only reason for 4 stars is the 38-day lead time felt slightly long, though they did warn us upfront that P91 in this dimension required fresh mill production. Would order again for non-urgent projects.