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ASTM A106/A106M covers seamless carbon steel pipe for high-temperature service. A quotation should be based on the ordered grade, dimensions, end preparation, testing and documentation rather than the material name alone.
ASTM A106 seamless pipe is commonly specified for refinery, power, oil, gas and process piping where the project documents require this material standard. Final material selection and design conditions remain subject to the applicable piping code and project engineering.
| Material | ASTM A106/A106M edition and Grade A, Grade B or Grade C |
| Dimensions | NPS or OD, ordered wall/schedule, length and tolerances |
| Ends | Plain, beveled or threaded; end protection if required |
| Inspection | Hydrostatic or permitted NDE, supplementary tests and third-party scope |
| Documents | MTC, inspection records, marking, quantity, destination and delivery requirement |
Availability is confirmed against the complete RFQ. Design pressure and temperature, corrosion allowance, welding procedure and code compliance remain the responsibility of the purchaser or project engineer.
The following items define the quotation basis for ASTM A106 seamless carbon steel pipe.
| Product form | Seamless carbon steel pipe |
| Standard | ASTM A106/A106M, edition stated by purchaser |
| Grades | Grade A, Grade B or Grade C as ordered |
| Size range | NPS 1/8–48 standard scope; actual availability confirmed at quotation |
| Dimensions | NPS or OD plus ordered wall thickness or schedule |
| Length | Random, fixed or cut length as agreed |
| Ends | Plain, beveled, threaded or project-specific preparation |
| Surface | Bare, varnished or project-specified protection |
| Testing | Hydrostatic or permitted NDE and supplementary tests as ordered |
| Documents | MTC, inspection reports and third-party release as agreed in the RFQ/PO |
Schedule alone does not define every purchasing condition. The order should also confirm the dimensional standard, outside diameter, required wall thickness, tolerances, test route and document package.
ASTM A106/A106M specifies seamless carbon steel pipe in Grade A, Grade B and Grade C. The purchase order should identify the required grade and applicable edition.
The material standard does not replace the need to identify the dimensional reference, piping code, project specification, supplementary requirements, inspection scope and document requirements.
ASTM A106, ASTM A53 and API 5L have different scopes and requirements. They should not be treated as interchangeable merely because nominal dimensions overlap. Any substitution requires written purchaser approval.
State the standard edition, grade, size, wall or schedule, length, ends, heat-treatment or supplementary requirements, testing, marking, packing and certificates in the RFQ or PO.
The production route is selected according to the ordered size, grade, wall thickness, delivery condition and applicable specification.
Billet inspection → heating → piercing → mandrel rolling → sizing or reducing → heat treatment as ordered → straightening → dimensional inspection → hydrostatic or permitted NDE testing → end finishing → traceability marking → final inspection and packing.
The actual manufacturing and acceptance route follows ASTM A106/A106M, the ordered grade and the agreed inspection plan.
ASTM A106 is specified as seamless carbon steel pipe. If a project permits welded pipe, the alternative material standard should be identified separately.
Provide the standard edition, grade, NPS or OD, wall or schedule, length, ends, quantity, testing, documentation, destination and delivery requirement.
Schedule is commonly used, but the quotation and order should still confirm the dimensional standard, outside diameter and required wall thickness.
State the required certificate type, inspection scope and third-party agency in the RFQ. Witness points and document format are confirmed before order acceptance.
Use the material standard required by the design and project documents. ASTM A106 is a seamless high-temperature-service material specification; ASTM A53 covers specified pipe types and finishes. They are not automatic equivalents.
The following items define the quotation basis for ASTM A106 seamless carbon steel pipe.
| Product form | Seamless carbon steel pipe |
| Standard | ASTM A106/A106M, edition stated by purchaser |
| Grades | Grade A, Grade B or Grade C as ordered |
| Size range | NPS 1/8–48 standard scope; actual availability confirmed at quotation |
| Dimensions | NPS or OD plus ordered wall thickness or schedule |
| Length | Random, fixed or cut length as agreed |
| Ends | Plain, beveled, threaded or project-specific preparation |
| Surface | Bare, varnished or project-specified protection |
| Testing | Hydrostatic or permitted NDE and supplementary tests as ordered |
| Documents | MTC, inspection reports and third-party release as agreed in the RFQ/PO |
Schedule alone does not define every purchasing condition. The order should also confirm the dimensional standard, outside diameter, required wall thickness, tolerances, test route and document package.
ASTM A106/A106M specifies seamless carbon steel pipe in Grade A, Grade B and Grade C. The purchase order should identify the required grade and applicable edition.
The material standard does not replace the need to identify the dimensional reference, piping code, project specification, supplementary requirements, inspection scope and document requirements.
ASTM A106, ASTM A53 and API 5L have different scopes and requirements. They should not be treated as interchangeable merely because nominal dimensions overlap. Any substitution requires written purchaser approval.
State the standard edition, grade, size, wall or schedule, length, ends, heat-treatment or supplementary requirements, testing, marking, packing and certificates in the RFQ or PO.
The production route is selected according to the ordered size, grade, wall thickness, delivery condition and applicable specification.
Billet inspection → heating → piercing → mandrel rolling → sizing or reducing → heat treatment as ordered → straightening → dimensional inspection → hydrostatic or permitted NDE testing → end finishing → traceability marking → final inspection and packing.
The actual manufacturing and acceptance route follows ASTM A106/A106M, the ordered grade and the agreed inspection plan.
ASTM A106 is specified as seamless carbon steel pipe. If a project permits welded pipe, the alternative material standard should be identified separately.
Provide the standard edition, grade, NPS or OD, wall or schedule, length, ends, quantity, testing, documentation, destination and delivery requirement.
Schedule is commonly used, but the quotation and order should still confirm the dimensional standard, outside diameter and required wall thickness.
State the required certificate type, inspection scope and third-party agency in the RFQ. Witness points and document format are confirmed before order acceptance.
Use the material standard required by the design and project documents. ASTM A106 is a seamless high-temperature-service material specification; ASTM A53 covers specified pipe types and finishes. They are not automatic equivalents.
