Quick Answer
ASTM A106/A106M covers seamless carbon steel pipe for high-temperature service. The three grades are A, B and C. Buyers should specify the grade, size and schedule, standard edition, end finish, test requirements and required documentation. ASTM A106 is not a stainless-steel specification, and Chinese grades should not be treated as automatic equivalents without an engineering review.
ASTM A106/A106M covers seamless carbon steel pipe for high-temperature service. The three grades are A, B and C. Buyers should specify the grade, size and schedule, standard edition, end finish, test requirements and required documentation. ASTM A106 is not a stainless-steel specification, and Chinese grades should not be treated as automatic equivalents without an engineering review.
ASTM A106 pipe is commonly considered for refinery, power-generation, chemical-processing and other pressure-piping systems where seamless carbon steel pipe is required. Suitability still depends on the design code, temperature, pressure, corrosion allowance and project specification.
What ASTM A106 Covers
- Manufacturing route: seamless carbon steel pipe.
- Service: intended for high-temperature service, subject to the applicable piping design rules.
- Grades: A, B and C, with different chemistry and mechanical-property requirements.
- Dimensions: normally ordered by NPS and schedule or specified wall thickness.
Important: ASTM A106 grade designations are not direct substitutes for 20#, Q235 or Q345. Any cross-standard comparison must check chemistry, mechanical properties, heat treatment, dimensions, testing and the governing design code.
Grade and Specification Checks
| Check | Why It Matters |
|---|---|
| Grade A, B or C | Controls the applicable chemistry and tensile requirements. |
| Standard edition | Requirements can change; quote the edition required by the project. |
| NPS, schedule and length | Defines the ordered geometry and affects pressure design. |
| Testing and documents | State hydrostatic/NDE requirements, MTC type and traceability needs. |
RFQ Checklist
- ASTM A106/A106M edition and grade.
- NPS, schedule or wall thickness, and length.
- Plain, beveled or threaded ends.
- Quantity and dimensional tolerance requirements.
- Testing, marking, coating and documentation requirements.
Need a quotation? Send the complete specification and service conditions through our contact page so the requested pipe can be reviewed against the correct standard.
Post time: Mar-12-2018