Global Steel Supply & Processing
ASTM A106/A106M-26 | SEAMLESS | HIGH-TEMPERATURE SERVICE
SEAMLESS PIPE FOR INDUSTRIAL PROJECTS
Source ASTM A106 Grade B seamless carbon steel pipe for process piping, power equipment and engineered industrial systems. Send your NPS, schedule, length, inspection requirements and total tonnage for a tailored offer.
Review technical specifications ↓Select the standard, dimensional requirements and finishing details that fit your piping bill of materials.
| Parameter | Procurement specification |
|---|---|
| Product designation | ASTM A106 Grade B Seamless Steel Pipe |
| Primary material standard | ASTM A106/A106M-26; specify the contractual edition |
| General requirements | ASTM A530/A530M where invoked by product standard / order |
| Dimensional reference | ASME B36.10-2022, welded and seamless wrought steel pipe |
| Manufacturing route | Seamless; hot-finished or cold-drawn where applicable |
| Nominal size / outside diameter | State NPS or actual OD in millimetres; confirm size and availability |
| Wall thickness | Specified wall (mm) or Schedule 40, Schedule 80, XS, XXS and other agreed schedules |
| Lengths | Random, fixed or cut-to-length options to be confirmed with purchase order |
| Pipe ends | Plain ends, bevel preparation or other agreed end requirements |
| Surface / protection | Black / mill finish; optional agreed protective treatments and end caps |
| Documentation | Heat traceability, mill test certificate, inspection and test reports as specified |
| Supply conditions | Quote by OD, WT, grade, length, number of pieces / tonnage and destination |
Standard and mill capability determine available combinations. Confirm the edition, tolerance class, order quantity and inspection scope before purchase.
Grade B mechanical minima are standardized. Finished pipe chemistry and test results are verified against the applicable purchase specification.
| Property | Grade B reference |
|---|---|
| Tensile strength, minimum | 415 MPa (60 ksi) |
| Yield strength, minimum | 240 MPa (35 ksi) |
| Elongation | Applicable minimum depends on specimen / test procedure and standard edition |
| Service reference | Seamless carbon steel pipe specified for high-temperature service |
| Forming / welding | Use qualified procedures appropriate to pipe size, grade and design requirements |
Grade B is normally specified by its minimum yield and tensile strength; design allowables are established separately by the applicable piping code.
| Element | Typical specification limit |
|---|---|
| Carbon (C) | ≤ 0.30% |
| Manganese (Mn) | 0.29–1.06%* |
| Phosphorus (P) | ≤ 0.035% |
| Sulfur (S) | ≤ 0.035% |
| Silicon (Si) | ≥ 0.10% |
| Chromium (Cr) | ≤ 0.40% |
| Copper (Cu) | ≤ 0.40% |
| Nickel (Ni) | ≤ 0.40% |
| Molybdenum (Mo) | ≤ 0.15% |
| Vanadium (V) | ≤ 0.08% |
* ASTM A106 includes a qualified carbon / manganese adjustment provision, and a combined limit for selected residual alloying elements. Apply the precise requirements of the contractual edition to the actual heat analysis.
A nominal size is a designation. Use actual outside diameter and wall thickness for weight, cutting and engineering calculations.
Illustrative common schedule dimensions to ASME B36.10. Dimensions below are nominal millimetres, not a live inventory list.
| Nominal pipe size | Outside diameter (mm) | SCH 40 WT (mm) | SCH 80 WT (mm) |
|---|---|---|---|
| NPS 1/2 | 21.3 | 2.77 | 3.73 |
| NPS 1 | 33.4 | 3.38 | 4.55 |
| NPS 2 | 60.3 | 3.91 | 5.54 |
| NPS 4 | 114.3 | 6.02 | 8.56 |
| NPS 6 | 168.3 | 7.11 | 10.97 |
| NPS 8 | 219.1 | 8.18 | 12.70 |
Other schedules and custom dimensions are subject to standard applicability and production availability. For design, verify current dimensional tables and the finished-pipe tolerance requirements.
Provide drawing, required nominal and minimum wall, ends and acceptance conditions.
End preparation and surface protection affect field fit-up, handling and delivery. Include them in the request rather than treating them as fixed features.
Request a mill-finished surface or agreed cleaning and protection. Indicate any limits on scale, rust, contamination and handling marks.
Specify plain ends or bevel angle / root face according to the approved joint detail, pipe dimensions and subsequent welding procedure.
Protect bore cleanliness and pipe ends when required. Confirm caps, bundling, lifting points, identification and coating before dispatch.
ASTM A106 Grade B is frequently specified for seamless pressure piping and high-temperature duty. Suitability is a design decision based on actual service conditions and piping codes.
The A106 material designation addresses seamless pipe product requirements. The engineering specification determines pressure class, metal temperature, wall corrosion allowance, welding qualifications, joint details, inspection levels and operating environment.
A106 Grade B and ASME SA-106 Grade B may appear in project schedules, but code and edition compatibility must be checked rather than assumed.
Upload a genuine project or application photo with appropriate publication rights.
Industrial purchasers value traceable composition, predictable pipe dimensions and compliance with the applicable engineering specification.
For engineered process lines where seamless construction and Grade B requirements match project specifications.
Industrial steam and auxiliary piping when pressure design, temperature and material selection permit.
Equipment interconnects and transfer lines designed for the relevant process media and corrosion conditions.
Cut-to-length pipe sections for shop prefabrication, welding and equipment integration.
Piping associated with industrial heating equipment subject to the governing code and approved materials list.
Project-grade sourcing with agreed schedule, piece tracking, MTC and packing documentation.
Select a common NPS / Schedule combination or enter your actual outside diameter and nominal wall thickness to plan the shipment.
The calculation uses 7.85 g/cm³ steel density and nominal OD / WT. It estimates bare, plain-end pipe mass; it excludes coating, end preparation, fittings, pallets and actual tolerances.
Production route, heat number control and finishing details must align with the contracted ASTM edition and the pipe mill’s capabilities.
Establish the required Grade B chemistry and traceable starting material.
Produce a hollow pipe by the selected seamless manufacturing route.
Control dimensions, surface finish and required processing for the applicable size / production method.
Complete applicable mechanical, dimensional and pressure / NDE checks and maintain pipe identification.
Manufacturing photographs must match the actual production operation and usage rights; finished-pipe process details are confirmed for each quote.
A consistent purchasing workflow for specification review, supplier coordination, documentation and export delivery.
Company-wide production and inventory infrastructure supports a broad industrial steel procurement portfolio.
Confirm Grade B, dimensions, inspection plan, heat number identification and required certificate scope.
Match your pipe item list, piece count, fabrication needs and shipment schedule to a documented offer.
Coordinate practical packing, shipping documentation and destination requirements for your project.
Define the acceptance criteria and documentation before the pipe order is produced or allocated.
If your installation requires prepared ends or measured pipe lengths, include the fabrication details and tolerance requirements with your RFQ.
Pipe stocks and production windows vary by dimension, schedule, source mill and inspection plan. Request the exact combination for an actionable lead time.
A documented pipe quotation should reflect actual material identification, source capability and shipment conditions.
Plan export handling around the pipe length, outer diameter, lifting method, destination and project receiving procedure.
Typical arrangements may include pipe bundles, size-appropriate supports, end protection and accessible identification. The final packing method is selected to suit the products and the shipping route.
Each specification has its own scope, manufacturing rules, material conditions and documentation. Select the grade according to the engineering design.
| Specification | Scope and purchasing distinction | Common sourcing focus |
|---|---|---|
| ASTM A106 Grade B | Seamless carbon steel pipe for high-temperature service. | This page |
| ASTM A53 Grade B | General steel pipe products, including types permitted by A53. | General pipe applications |
| ASTM A333 Grade 6 | Seamless and welded steel pipe materials for low-temperature service. | Low-temperature engineering |
| API 5L Grade B / X52–X70 | Line pipe grades specified for pipeline transport systems; PSL and manufacturing route must be stated. | Line-pipe procurement |
| ASTM A252 Grade 3 | Steel pipe piles for civil and foundation work. | Foundation projects |
The listed materials are separate contractual specifications. Similar strength levels or diameters alone do not establish material equivalence or code acceptance.
Compare intended service, test requirements and pipeline grades before choosing the right pipe for your order.
Some grade-specific pages may currently be WordPress drafts. Activate their links only after those pages are published and their slugs verified.
Answers to the technical and commercial questions buyers raise when preparing a seamless pipe RFQ.
It is a seamless carbon steel pipe material commonly specified in high-temperature pressure piping projects. The final application must be approved by the applicable design code and engineering specification.
They are distinct ASTM product specifications with different scope and manufacturing provisions. Any substitution requires review of the governing project documents.
Yes. ASTM A106 is a seamless carbon steel pipe product specification. ERW and other welded-pipe manufacturing routes are outside its seamless construction scope.
The commonly specified Grade B minimum tensile strength is 415 MPa (60 ksi), with minimum yield strength of 240 MPa (35 ksi). Check the contractual ASTM edition and certified results.
NPS is a nominal designation. Each NPS has a defined outside diameter in the dimensional standard. Schedule then specifies nominal wall thickness.
Specify NPS and schedule, or provide actual outside diameter and nominal wall thickness. We will confirm available combinations and lead time with the material source.
Plain ends and prepared/beveled ends may be quoted subject to pipe dimensions and cutting capabilities. Provide your end preparation drawing when a weld bevel is required.
Specify a material test certificate, heat identification, applicable chemistry/mechanical testing, required hydrostatic or nondestructive test evidence and any third-party witness or supplementary testing.
The pipe specification does not set a universal safe operating temperature for every assembly. Piping code, design pressure, allowable stresses, service fluid and corrosion conditions determine suitability.
ASME SA-106 is the related ASME material specification used in code applications. Confirm edition and approval against the governing ASME code, rather than assuming automatic interchangeability.
Enter OD, nominal wall, length and quantity in the calculator above. It uses a 7.85 g/cm³ steel density reference and excludes end treatments, coating and packing.
Send Grade B, ASTM edition, NPS/OD, schedule or wall thickness, end finish, pipe length, quantity, inspection documents, delivery destination and required shipment date.
Send your pipe schedule, OD / wall, piece lengths, quantities, testing requirements, delivery destination and required date. Our team will review the specifications and confirm quotation terms.
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Send your required grade, dimensions, quantity and destination. Our team will review the inquiry.
