ASTM A213 Steel Pipe


ASTM A213 Steel Pipe

At UNIACERO, we specialize in the export of ASTM A213 steel tubes. These tubes are known for their seamless ferritic and austenitic alloy-steel properties, perfectly suited for boilers, superheaters, and heat exchangers. The uniqueness of our product lies in its ability to cater to those specifications that require an added ‘H’ for higher creep-rupture strength.
Our steel tubes adhere to the ASTM A213 standard, and we are an authorized licensee for the manufacturing and export of these tubes. UNIACERO, as an authorized supplier, ensures compliance with the stringent requirements of ASTM A213, providing seamless tubes that meet the highest industry standards.


ASTM A213 Specification

The specification encompasses various aspects, including tubing sizes, dimensions, mechanical properties, and testing procedures. Our ASTM A213 tubes come in an expansive range of dimensions, from an inside diameter of 1/8 inch to a 5-inch outside diameter. They’re available in wall thicknesses from 0.015 to 0.500 inches. Produced through either the seamless hot or cold finishing process, each tube guarantees superior strength and corrosion resistance. We provide an array of steel grades, ensuring the ideal solution for every application. Our tubes also come in different end types and joint methods, with optional surface coatings and customizable machining services to match your project’s specifications. UNIACERO’s commitment to quality and compliance with the ASTM A213 standard guarantees that you receive tubes with precise dimensions, superior mechanical properties, and corrosion resistance.

StandardASTM  A213/ A213M
Manufacturing ProcessesSMLS
Outside Diameter3.2mm – 127mm (1/8″ – 5″)
Wall Thickness0.4mm – 12.7mm
Pipe Length3 – 18 mtrs meters
Steel GradeT2T11T23T112TP304LTP316H
Corrosion PreventionLacquer, Varnish, Oiling, Galvanizing
End ProcessesSquare Cut, Bevelling, Threading, Grooving , Shouldering
Further ProcessingWelding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

ASTM A213 Dimension Table


To ensure you get the perfect fit for your projects, our ASTM A213 tubes are available in a wide range of dimensions, that cater to seamless and efficient welding processes. For seamless construction, dimensions range from 6 MM OD to 114.3 MM OD. Meanwhile, our ERW variants range from 10 MM to 114.3 MM OD. With this extensive dimension table, UNIACERO promises a tailored fit, ensuring efficient installation and optimal performance.

Outside Diameter:1⁄8 to 5 in. [3.2 to 127 mm]
Wall Thickness:0.015 to 0.500 in. [0.4 to 12.7 mm]
Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.

Chemical Requirements of ASTM A213 Steel Pipe

The chemical composition, including the balance of alloy and ferritic stainless steels, is crucial for achieving the desired mechanical properties and resistance to environmental factors. As per the ASTM A213 specification, every ASTM A213 tube we produce adheres strictly to the chemical compositions set by international standards, including seamless ferritic and austenitic alloy-steel properties. These precise compositions ensure the tubes’ durability and resistance to various environmental conditions. When you choose UNIACERO, you’re investing in products that not only meet but often exceed global chemical standards, promising longevity and robust performance.

Chemical Composition Limits,%, for Low Alloy Steel
GradeUNS DesignationComposition,%
CarbonManganesePhosphorusSulfurSiliconNickelChromiumMolybdenumVanadiumBoronNiobiumNitrogenAluminumTungstenOther Elements
T5cK412450.120.30-0.600.0250.0250.504.00-6.000.45-0.65Ti 4xC-0.70
T24K307360.05-0.100.30-0.700.0200.0100.15-0.452.20-2.600.90-1.100.20-0.300.0015-0.0070.0120.02Ti 0.06-0.10
T36K210010.10-0.170.80-1.200.0300.0250.25-0.501.00-1.300.300.25-0.500.020.015-0.0450.020.05Cu 0.50-0.80
T91K909010.07-0.140.30-0.600.0200.0100.20-0.500.408.0-9.50.85-1.050.18-0.250.06-0.10.030-0.0700.02Ti 0.01 Zr 0.01
T92K924600.07-0.130.30-0.600.0200.0100.500.408.5-9.50.30-0.600.15-0.250.001-0.0060.04-0.090.030-0.0700.021.5-2.00Ti 0.01 Zr 0.01
T122K912710.07-0.140.700.0200.0100.500.5010.0-11.50.25-0.600.15-0.300.0005-0.0050.04-0.100.040-0.1000.021.5-2.5Cu 0.30-1.70 Ti 0.01 Zr 0.01
T911K910610.09-0.130.30-0.600.0200.0100.10-0.500.408.5-9.50.90-1.100.18-0.250.0003-0.0060.06-0.100.040-0.0900.020.9-1.1Ti 0.01 Zr 0.01

Mechanical Requirements of ASTM A213 Steel Pipe

UNIACERO understands the importance of mechanical properties in industrial applications. Each ASTM A213 tube meets stringent requirements for tensile strength, yield strength, elongation, and hardness. Our meticulous testing processes guarantee that every tube you receive from us will withstand the stresses of its intended application, ensuring safety and durability. Choose UNIACERO for ASTM A213 tubes that undergo meticulous testing, ensuring they meet or exceed mechanical requirements for safety and durability in your industrial applications.

Tensile Requirements-Low Alloy Steels
GradeUNS DesignationTensile Strength min, ksi [MPa]Yield Strength min. ksi [MPa]Elongation in 2 in. or 50 mm, min, %AB
T36 Class 1K2100190[620]64[440]15
T36 Class 2K2100195.5[660]66.5[460]15
All other low alloy grades60[415]30[205]30

Steel Grades in ASTM A213

Our ASTM A213 tubes are available in a plethora of steel grades, including TP304, TP304H, TP304L, TP310S, TP310HCbN, TP316, TP316H, TP316L, and more. Each grade has unique qualities suited for specific applications. Whether you require higher creep-rupture strength or enhanced corrosion resistance, UNIACERO ensures a grade perfectly tailored to your needs.

Production Tolerance of ASTM A213 Steel Pipe

ASTM A213 specifies Minimum wall thickness, namely, there is no mill under tolerance, only over tolerance, unless specified as average wall thickness is required, permissible variations from the specified average wall thickness shall be +/-10 % of the specified average wall thickness for cold-formed tubes.

Seamless tubing furnished to this specification shall conform to the requirements of specification ASTM A1016/A1016M, including any supplementary requirements.

Our Advantages

  1. Over 25 years of experience in pipeline production and installation.
  2. Comprehensive inspection equipment.
  3. Independent product serial numbers for traceability.
  4. Advanced production equipment – Seamer high-frequency welding machine from the United States.
  5. Complete qualifications – API 5L/API 5CT/FM/UL fire pipe certification, etc.
  6. Wide range of products – independently developed solar torque tubes, highly favored in the European market.
  7. Customers spread across the globe.
  8. Excellent after-sales service and sense of responsibility.

Application Scenarios

Our steel pipes are engineered to withstand high temperatures, corrosive environments, and varying pressures, ensuring reliability and safety in the complex petrochemical processes. 

Whether it’s transferring crude oil, natural gas, or chemical intermediates, the robustness and versatility of steel pipes make them indispensable components of the plant’s infrastructure, contributing to efficient production and maintenance of stringent safety standards.

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