ASTM A106 Seamless Carbon Steel Pipe Standard Specifications

ASTM A106 Seamless Carbon Steel Pipe Standard Specifications

ASTM A106 Standard Specification A106 Grade A · B · C

ASTM A106 is the standard specification for seamless carbon steel pipe for high-temperature service.
This page provides a technical overview of ASTM A106 pipes and offers a access to download ASTM A106 standard PDF specification for engineering, procurement, and EPC project use.

What is ASTM A106?

ASTM A106 covers seamless carbon steel pipes intended for high-temperature and pressure service, commonly used in:

  • Refineries

  • Power plants

  • Petrochemical facilities

  • Oil & gas pipelines

ASTM A106 Grades review

ASTM A106 includes three grades based on chemical composition and mechanical strength:

  • ASTM A106 Grade A

  • ASTM A106 Grade B (most widely used)

  • ASTM A106 Grade C (higher strength)

Chemical Composition of ASTM A106 (Typical, %)

Composition
%		 Carbon Manganese Phosphorus Sulfur Silicon Chromium Copper Molybdenum Nickel Vanadium
max — max max min max max max max max
Grade A 0.25 a 0.27-0.93 0.035 0.035 0.10 0.40 0.40 0.15 0.40 0.08
Grade B 0.30 b 0.29-1.06 0.035 0.035 0.10 0.40 0.40 0.15 0.40 0.08
Grade C 0.35 b 0.29-1.06 0.035 0.035 0.10 0.40 0.40 0.15 0.40 0.08

a For each reduction of 0.01 % below the specified carbon maximum, an increase of 0.06 % of manganese above the specified maximum will be

Tensile Requirements

The tensile test measures the yield strength, tensile strength, and elongation, three key mechanical properties of A106 steel pipe.

— Grade A Grade B Grade C
Tensile strength, min 48,000 psi [330 MPa] 60,000 psi [415 MPa] 70,000 psi [485 MPa]
Yield strength, min 30,000 psi [205 MPa] 35,000 psi [240 MPa] 40,000 psi [275 MPa]

Heat Treatment Requirements

ASTM A106 seamless pipes may be supplied in one of the following conditions:

  • Hot-finished

  • Cold-drawn

  • Normalized

  • Normalized & Tempered (when specified)

Heat treatment ensures uniform microstructure and mechanical performance for high-temperature service.

Hardness NACE MR0175 compliance

  • ASTM A106 pipes typically meet hardness requirements suitable for welding and forming.

  • Specific hardness limits can be provided upon request.

Testing & Inspection

ASTM A106 pipes are supplied with the following tests:

  • Chemical composition analysis

  • Tensile test

  • Flattening test

  • Bending test

  • Hydrostatic test or Non-destructive electric test

  • Dimensional inspection

All products are supplied with EN 10204 3.1 Mill Test Certificates./MTC 3.2 upon request

Size Range

  • Outside Diameter: 1/8″ – 24″

  • Wall Thickness: SCH 10 – SCH XXS

  • Length: Random, Double Random, or Cut-to-Length

Typical Applications

  • High-temperature pressure piping

  • Steam pipelines

  • Oil & gas transmission lines

  • Petrochemical process piping

  • Power plant systems

Download ASTM A106 Seamless Pipe Specification PDF

📄 ASTM A106 Seamless Carbon Steel Pipe – Technical PDF Datasheet

✔ Standard overview
✔ Chemical composition
✔ Mechanical properties
✔ Heat treatment
✔ Testing requirements
✔ Size range

👉 [Download ASTM A106 standard Specification PDF]

👉 [Download ASME SA106 standard Specification PDF]

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