aSTM A672


ASTM A672 Steel Pipe

At UNIACERO, we pride ourselves on providing ASTM A672 Electric-Fusion-Welded Steel Pipe, an impeccable product ideal for high-pressure service at moderate temperatures. Renowned worldwide for its unparalleled quality, this steel pipe serves as the backbone of numerous construction and infrastructure projects. Designed to meet rigorous international standards, ASTM A672 doesn’t merely meet expectations; it surpasses them. Starting from the raw material selection to the final product, our expertise ensures that every inch of the steel pipe stands testimony to quality and reliability. When you choose our ASTM A672, you’re investing in decades of research, unparalleled expertise, and unwavering commitment to quality.

ASTM A672 Specification

For those who demand nothing but the best, our ASTM A672 steel pipe boasts specifications designed to cater to diverse project requirements. Crafted with precision, the pipe offers sizes 16 in. [400 mm] in outside diameter or larger, with wall thicknesses reaching up to 3 in. [75 mm]. Whether it’s the meticulous production procedures, diverse steel grades, specialized surface coatings, or the various end types and joint methods; every aspect of this pipe has been tailored to perfection. To further enhance its usability, we also offer comprehensive machining services, ensuring it’s not just a product but a complete solution for our clients.

Production StandardASTM A672
Manufacturing ProcessesEFW(Electric-Fusion-Welded)
Outside Diameter≥400mm (≥16″)
Wall Thickness≤75mm
Pipe Length6 meters(20feet)
Steel GradeASTM A672 A 45ASTM A672 B 70ASTM A672 D70ASTM A672 J90ASTM A672 L70
ASTM A672 A 50ASTM A672 C 55ASTM A672 D80ASTM A672 J100ASTM A672 L75
ASTM A672 A 55ASTM A672 C 60ASTM A672 H75ASTM A672 K75ASTM A672 N75
ASTM A672 B 60ASTM A672 C 65ASTM A672 H80ASTM A672 K85
ASTM A672 B 65ASTM A672 C 70ASTM A672 J80ASTM A672 L65
Corrosion PreventionLacquer, Varnish, Oiling, Galvanizing
End ProcessesSquare Cut, Bevelling, Threading, Grooving
Further ProcessingWelding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

ASTM A672 Dimension Table


Every project is unique, and to ensure that we cater to each one’s specific needs, we provide a thorough dimension table for the ASTM A672 steel pipes. From its outside diameter, reaching up to 16 inches, to its inclusive wall thickness extending up to 3 inches, every measurement is meticulously detailed. Our comprehensive table ensures that you have all the information you need at your fingertips, ensuring seamless integration of our product into your project, thus ensuring timely and efficient results.

Outside Diameter:16 in. [400mm] or larger
Wall Thickness:up to 3 in. [75 mm]
Pipe having other dimensions may be furnished provided it complies with all other requirements of this specification.

Steel Grades in ASTM A672

UNIACERO’s ASTM A672 steel pipes are available in a variety of grades, each designating the type of plate used. The diverse range ensures that you always find a grade best suited to your specific project needs. With each grade tailored for different applications and stress levels, our pipes not only offer versatility but also the assurance that you’re using the best grade for optimal performance and longevity.

Product Tolerance of ASTM A672

Accuracy and precision are paramount in our production process. For the ASTM A672 steel pipes, the variations in wall thickness and weight strictly adhere to the plate’s specification. For the outside diameter, we maintain a tight tolerance based on a circumferential measurement, ensuring a +/-0.5% of the specified outside diameter. This precision in production means that when you integrate our pipes into your projects, they fit seamlessly, ensuring efficiency and top-tier performance.

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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