ASTM A213 T9 Tubes Manufacturer & Supplier

Q: What’s the chemical composition of T9 tubes?

T9 tubes contain 8.00–10.00% Chromium, 0.90–1.10% Molybdenum, ≤0.15% Carbon, 0.30–0.60% Manganese, and traces of Phosphorus and Sulfur.

Q: What are the mechanical properties of ASTM A213 T9?

T9 tubes have ≥415 MPa tensile strength, ≥205 MPa yield strength, ≥30% elongation, and ≤85 HRB hardness, suitable for high-temp, high-pressure use.

Q: What’s the difference between ASTM A213 T9 and ASTM A312 P9?

A213 T9 covers seamless tubes for boilers and exchangers, while A312 P9 includes welded/seamless pipes for general high-temp service.

Q: What sizes and finishes are available for T9 tubes?

Available sizes range from 6 mm to 101.6 mm OD with 1 mm to 12 mm wall thickness. Finishes: hot-finished, cold-drawn, annealed, oiled, or pickled.

As a trusted manufacturer and global supplier of ASTM A213 T9 Tubes, we provide precision-engineered seamless alloy steel tubing designed to perform under high-temperature and high-pressure conditions. Produced in full compliance with ASTM A213 standards, our T9 tubes ensure superior corrosion resistance, tight dimensional control, and long-lasting durability for mission-critical industrial systems.

Leveraging decades of metallurgical expertise, we deliver ASTM A213 T9 alloy steel seamless tubes to diverse industries, including power generation, oil & gas, petrochemicals, and heat exchanger manufacturing. Our comprehensive inventory also includes grades like ASTM A213 T91 Tubes, ASTM A213 T1 Tubes, ASTM A213 T11 Tubes, ASTM A213 T22 Tubes, ASTM A213 T5 Tubes, ASTM A213 T2 Tubes, and ASTM A213 T23 Tubes, making us a one-stop solution for all your ASTM A213 tubing requirements.

Every T9 tube undergoes stringent testing procedures, including hydrostatic testing, Positive Material Identification (PMI), ultrasonic inspection, and hardness evaluation to ensure compliance with international quality standards. Whether you require tubing for superheaters, boilers, or thermal transfer systems, we offer a complete range of outer diameters, wall thicknesses, and customized lengths. With global logistics support, prompt delivery, and competitive pricing, USA Pipings stands as your reliable source for ASME SA 213 T9 and other high-performance alloy tubing solutions.

ASTM A213 T9 Tubes

ASTM A213 gr t9 seamless tubes are a213 t9 ferritic alloy steel seamless tubes engineered for use in high-temperature and high-pressure applications such as boilers, heat exchangers, and superheaters. Belonging to the chrome moly T9 tube family, these tubes are alloyed with chromium and molybdenum—elements that significantly enhance mechanical strength, oxidation resistance, and thermal stability.

Known for their superior creep resistance, excellent weldability, and extended operational lifespan, T9 tubes are a top choice in the power generation, oil & gas, and petrochemical industries. Produced as per ASTM A213 standards, each tube undergoes cold drawing or hot finishing to achieve consistent wall thickness, smooth internal surfaces, and precise dimensional control.

Whether required for high-efficiency heat transfer equipment or critical process piping, ASTM A213 T9 alloy steel seamless tubes offer a dependable solution. Available in various sizes and custom-cut lengths, they are built to deliver reliable performance even in the most extreme service environments.

ASTM A213 T9 Tubes Specifications

Our ASTM A213 T9 Tubes are manufactured to meet stringent international standards for high-temperature service in pressure equipment. Below are the detailed product specifications:

Specification	Details
Standard	ASTM A213
Grade	T9 (uns k90941) – Chrome Moly Alloy Steel
Manufacturing Process	Seamless, Cold Drawn / Hot Finished
Outer Diameter	6 mm to 101.6 mm
Wall Thickness	1 mm to 12 mm (customizable)
Length	Up to 12 meters (or as per client request)
Surface Finish	Annealed, Pickled, Polished, or Oiled
End Finishing	Plain End, Beveled End, Threaded (on request)
Form	Round Tubes
Heat Treatment	Normalized, Tempered, Annealed
Testing	Hydrostatic Test, Non-Destructive Testing (NDT), Hardness Test, PMI, Ultrasonic Testing

These specifications ensure that the T9 tubes meet both mechanical integrity and dimensional precision for demanding industrial applications. Custom sizes and third-party inspection services are available upon request.

Mechanical Properties of ASTM A213 T9

ASTM A213 T9 tubes exhibit excellent mechanical strength, thermal resistance, and stability under high-pressure conditions, making them ideal for critical applications in boilers, superheaters, and heat exchangers. The mechanical properties of T9 alloy steel ensure durability and performance even at elevated temperatures.

Property	Value
Tensile Strength	≥ 415 MPa (60,200 psi)
Yield Strength	≥ 205 MPa (29,700 psi)
Elongation	≥ 30% (in 50 mm gauge length)
Hardness	≤ 85 HRB (Rockwell Hardness, B scale)

These properties allow T9 tubes to withstand thermal expansion, mechanical stress, and pressure fluctuations over prolonged operational cycles. Proper heat treatment during manufacturing enhances their creep resistance and metallurgical stability, making them a reliable choice for high-temperature environments.

Chemical Composition – ASTM A213 T9 Tubes

TASTM A213 T9 tubes are composed of a carefully balanced alloy of chromium and molybdenum, which provides excellent strength, heat resistance, and oxidation protection. The chemical composition of T9 alloy steel is engineered to withstand prolonged exposure to high temperatures and pressures, making it suitable for use in boilers, heat exchangers, and superheaters.

Element	Composition (%)
Carbon (C)	≤ 0.15
Manganese (Mn)	0.30 – 0.60
Phosphorus (P)	≤ 0.025
Sulfur (S)	≤ 0.025
Chromium (Cr)	8.00 – 10.00
Molybdenum (Mo)	0.90 – 1.10

This precise chemical balance enhances the structural integrity of the T9 tubes, ensuring corrosion resistance, superior hardness, and long-term reliability in harsh operating conditions.

Industrial Applications of T9 Tubes

ASTM A213 T9 tubes are widely used across industries that demand high-performance materials capable of withstanding elevated temperatures, pressure, and corrosive environments. Their excellent mechanical strength, thermal stability, and oxidation resistance make them an ideal choice for critical heat-transfer systems.

Common Industrial Applications Include:

Power Generation Plants : Used extensively in boilers, superheaters, and reheaters due to their ability to perform under thermal stress and high-pressure steam environments.
Petrochemical & Refining Industries : Ideal for heat exchangers and furnace components handling corrosive media and elevated process temperatures.
Oil & Gas Processing : Suitable for equipment exposed to fluctuating pressures and aggressive chemical compounds in upstream and downstream operations.
Chemical & Fertilizer Plants : Used in reactors and piping systems that require materials with high creep resistance and long service life.
Industrial Boilers & Heat Recovery Systems : T9 tubes are critical in heat recovery steam generators (HRSG) and industrial boiler tubes due to their thermal fatigue resistance.

Whether for new installations or replacement in existing systems, T9 tubes ensure safe, efficient, and uninterrupted operation in the most demanding industrial settings.

Types and Forms of ASTM A213 T9 Tubes

Building complex industrial equipment often requires tubes in specific configurations. -USA Piping Solutions provides ASTM A213 T9 Tubes tailored to common fabrication needs:

Straight Lengths: The most standard delivery form, available in various lengths. These are the fundamental building blocks for furnace coils, straight runs in heat exchangers, boiler banks, and connecting lines.
U-Bends: Many heat exchangers use tubes bent into a U-shape. We supply these precisely bent to your required radius, often with options for stress-relieving the bent portion to maximize service life, especially in cyclic conditions.
Conditioned for Service: Tubes are generally supplied in the appropriate heat-treated state (fully annealed or normalized and tempered) as specified by the standard or your order. This ensures they arrive with the optimal microstructure for high-temperature performance.

Our goal is to deliver T9 tubes ready for efficient integration into your manufacturing workflow.

Applications and Industries Served

Where do engineers typically specify ASTM A213 Gr T9 tubes? You'll find them reliably performing in several key industrial arenas:

Oil Refining & Petrochemicals: These tubes are frequently used inside refinery furnaces, process heaters, and various heat exchangers handling hot process streams. T9 offers good resistance to the temperatures and common corrosive elements like sulfur compounds encountered in these environments.
Power Generation: While higher alloys take on the most extreme heat, T9 often serves well in boiler tubing sections, economizers, and parts of superheaters or reheaters operating at intermediate steam temperatures.
Chemical Processing: T9 is utilized in heat transfer equipment across various chemical production facilities where materials need dependable performance at moderate high temperatures.
Gas Processing: Similar to refining, T9 tubes find use in heaters and heat exchangers within plants that process natural gas.

Grade T9 frequently provides a well-balanced solution – offering a clear step up in heat resistance from carbon steel, making it suitable for many challenging tasks, without the higher cost associated with alloys designed for even more extreme temperatures.

ASTM A213 T9 Size Chart

-USA Piping Solutions aims to keep a comprehensive range of ASTM A213 T9 Tube sizes accessible. Our typical inventory covers:

Outer Diameters (OD): Encompassing sizes commonly specified for heat transfer applications, usually from 1/2 inch up through 5 inches, with the ability to source other dimensions as needed.
Wall Thicknesses (WT): Available in line with standard pipe schedules (SCH 40, SCH 80, etc.) or produced to meet specific minimum wall thickness requirements essential for safe pressure handling based on design codes.

Inventory changes constantly. For the absolute latest details on which specific sizes, walls, and lengths are currently available from stock, the best approach is to connect directly with our sales team. They can provide real-time information and discuss lead times for non-stock items.

Certifications and Compliance

Documented proof of quality is essential for these critical components. -USA Piping Solutions ensures all ASTM A213 T9 Tubes are delivered with thorough certification:

Meeting the Standards: Full certification to ASTM A213 and/or ASME SA213 requirements is provided as standard. We can often meet equivalent international standards like EN 10216-2 upon specific request.
Detailed Mill Test Certificates (MTC): Comprehensive EN 10204 Type 3.1 MTCs accompany every shipment. These provide complete traceability, detailing the exact chemical analysis, reporting the results of all required mechanical tests, and confirming the specific heat treatment applied.
European Pressure Rules (PED): We supply materials compliant with the Pressure Equipment Directive for projects within the EU.
Indian Boiler Regulations (IBR): Where necessary for boiler components destined for India, we provide IBR-certified tubes.
NACE Considerations: While heat resistance is T9's main strength, if your process environment has specific sour service (H2S) concerns, we can discuss material performance in context with NACE standards, though it's not its primary intended use.
Independent Verification Welcome (TPI): We fully support and facilitate inspections by third-party agencies (like Lloyd's, DNV, TUV, ABS, SGS) chosen by our clients, offering an additional layer of quality confidence.

Our quality management system is designed to provide complete assurance that the materials meet all necessary specifications.

Why Choose USA Pipings For ASTM A213 T9 Tubes?

At USA Pipings, we are committed to being a trusted ASTM A213 T9 Tubes supplier, delivering high-quality solutions for high-temperature and high-pressure industrial applications. Each ASTM A213 T9 alloy steel seamless tube we manufacture is subjected to stringent quality checks—including PMI analysis, hydrostatic testing, and ultrasonic inspection—to ensure full compliance with international standards and client specifications. All products are delivered with Mill Test Certificates and full material traceability for maximum quality assurance.

We stock a comprehensive range of sizes, finishes, and custom dimensions to meet both standard and urgent project needs. Backed by robust global logistics, technical expertise, and export-ready documentation, we serve clients across power generation, petrochemical, refinery, and oil & gas sectors throughout the USA, Europe, the Middle East, and Asia.

When you choose USA Pipings, you’re choosing proven durability, dependable delivery, and a partner that understands the operational demands of critical infrastructure.

FAQs About ASTM A213 T9 Tubes

What is ASTM A213 T9 used for?

ASTM A213 T9 tubes are used in boilers, superheaters, and heat exchangers in high-temperature and high-pressure environments such as power plants, refineries, and petrochemical facilities due to their excellent thermal and mechanical strength.

What’s the chemical composition of T9 tubes?

T9 tubes are composed of chromium (8.00–10.00%), molybdenum (0.90–1.10%), carbon (max 0.15%), manganese (0.30–0.60%), and small amounts of phosphorus and sulfur, giving them superior heat resistance and structural integrity.

What are the mechanical properties of ASTM A213 T9?

ASTM A213 T9 tubes offer a minimum tensile strength of 415 MPa, yield strength of 205 MPa, elongation of at least 30%, and a maximum hardness of 85 HRB, making them suitable for high-pressure, high-heat applications.

What’s the difference between ASTM A213 T9 and ASTM A312 P9?

While both grades have similar chemical and mechanical properties, ASTM A213 T9 covers seamless tubes for boilers and heat exchangers, whereas ASTM A312 P9 specifies welded or seamless pipes for general high-temperature service.

What sizes and finishes are available for T9 tubes?

T9 tubes are available in outer diameters from 6 mm to 101.6 mm and wall thicknesses from 1 mm to 12 mm. Finishes include hot-finished, cold-drawn, annealed, pickled, or oiled, with plain, beveled, or threaded ends on request.

Final Call to Action

Are you looking for a dependable source for high-quality ASTM A213 T9 Tubes? Engage with USA Piping Solutions. We are dedicated to supplying premium Alloy Steel Seamless Pipes & Tubes that consistently meet demanding international standards. Leverage our ready stock, technical insight, and strong commitment to customer support. Reach out to our experienced team today for a prompt quotation, to discuss your specific Grade T9 needs, or to explore how we can reliably supply your critical heat transfer component requirements.

Request Your ASTM A213 T9 Tubes Quote Today!