aSTM A214


ASTM A214 Steel Pipe

At the forefront of ASTM A214 steel tubes is their unique design that combines functionality and durability. These tubes, primarily known for their electric-resistance-welded, carbon steel composition, are pivotal for heat exchangers, condensers, and various other heat-transfer applications. The sturdy material and precise manufacturing process ensure that they provide a seamless experience, literally and figuratively, for all heat transfer needs.

ASTM A214 Specification

At UNIACERO, our A214 tubes stand as a testament to precision and durability. They range up to 3 in. [76.2 mm] in outside diameter. However, should you have unique needs, we’re adept at crafting tubes of different dimensions while still adhering to the robust standards of this specification. As you specify the desired outside diameter and minimum wall thickness, rest assured that the inside diameter remains optimal. Both inch-pound and SI units are employed, offering you flexibility and adherence to specific requirements.

Production StandardASTM A214
Manufacturing ProcessesERW
Outside Diameter3.2mm -76.2mm (1/8″ – 3″)
Wall Thickness1.65-7mm
Pipe Length3000 mm – 25000 mm
Steel GradeSA214
Corrosion PreventionLacquer, Varnish, Oiling, Galvanizing
End ProcessesSquare Cut, Bevelling, Threading, Socket
Further ProcessingWelding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

ASTM A214 Dimension Table


Every ASTM A214 tube from UNIACERO is a result of meticulous engineering. Ranging in size up to 3 in. [76.2 mm] in outside diameter, our tubes come with detailed dimensions tailored for specific applications. Whether you require variations in wall thickness or unique internal dimensions, we’ve got it cataloged and ready for your perusal, ensuring you can pick the perfect fit for your heat exchange apparatus.

Chemical Requirements of ASTM A214

Our tubes aren’t just physically resilient; they’re chemically robust too. UNIACERO ensures that every A214 tube is formulated using the right blend of elements, guaranteeing resistance to wear, corrosion, and high temperatures. When you choose our tubes, you’re investing in a product that has been scientifically calibrated for optimal performance, ensuring longevity and operational efficiency for your projects.

Chemical Composition
Carbon, max %0.18
Manganese, %0.27 to 0.63
Phosphorus, max, %0.035
Sulfur, max,%0.035

Mechanical Requirements of ASTM A214

Mechanical integrity is paramount when it comes to heat-transfer apparatus. Our ASTM A214 tubes undergo rigorous mechanical tests, from flattening to flange tests, ensuring they can withstand the rigors of their intended applications. By choosing UNIACERO, you’re ensuring a product designed to resist deformities, ensuring safety and operational integrity for your ventures.

Mechanical Properties
Tensile Strength min ksi (MPa)Yield Strength min ksi (MPa)Elongation min.%Hardness
47[325]26[180]≥35%≤72 HRB

Steel Grades in ASTM A214

Selecting the right grade of steel is crucial for the performance and longevity of your heat-transfer devices. At UNIACERO, we offer a range of steel grades suitable for various applications and environments. These grades not only conform to A214 standards but are also chosen based on their resistance to high pressures and temperatures. With our expertise, you’re assured of a product that fits perfectly with your needs, ensuring durability and efficiency.

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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