Description
ASTM A106 Seamless Carbon Steel Pipe OD 10-609mm WT 1.65-59.54mm Factory
Factory-Direct Mill Supply — ASTM A106 Grade B seamless pipes produced in-house from billet to finished pipe, with 2,800+ specifications in stock covering OD 10–609 mm and wall thickness up to 59.54 mm.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | ASTM A106 Seamless Carbon Steel Pipe |
| Product Type | Seamless Steel Pipe |
| Steel Grade | ASTM A106 Grade A, ASTM A106 Grade B, 20#, 45# |
| Standard | ASTM A106, API 5CT, API 5L, JIS, BS, DIN |
| Section Shape | Round |
| Outer Diameter | 10–609 mm |
| Wall Thickness | 1.65–59.54 mm |
| Technique | Hot Rolled / Cold Rolled |
| Surface Treatment | Oiled / Non-oiled |
| Tolerance | ±5% (±1% available) |
| Ends | Plain / Beveled |
| Application | Fluid transportation, Oil pipe, Boiler pipe, Gas pipe, Hydraulic pipe, Chemical fertilizer pipe, Structure pipe, Machinery parts |
| Delivery Time | 8–14 days |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Oil & Gas | Downhole tubing, flow lines, gathering pipelines, refinery process piping |
| Power & Energy | High-temperature boiler tubes, superheater elements, steam lines |
| Chemical Processing | Reactor feed lines, heat exchanger tubes, acid transfer piping |
| Industrial Construction | Hydraulic cylinder barrels, machinery shafts, structural columns |
| Infrastructure | Water transmission mains, fire protection risers, compressed air lines |
What Wall-Thickness Tolerance Costs on a Seamless Pipe Order
Tight tolerance control separates project-grade ASTM A106 seamless carbon steel pipe from commodity stock.
I once watched a 20-foot container of API 5L seamless pipe get held at Jebel Ali because the buyer’s SGS inspection found wall thickness negative deviation exceeded 12%. The theoretical weight was nearly two tons lighter than declared. The end user rejected the entire lot. That kind of failure doesn’t happen because of bad intent — it happens when the fabricator sources from a trader who sources from a mill they’ve never visited. When you buy ASTM A106 seamless carbon steel pipe from a vertically integrated producer, the same quality system that rolls the billet inspects the finished pipe. Every heat number traces back to the ladle analysis. [NEED_CITE: ASTM A106 dimensional tolerance requirements per ASME B36.10M]
Matching ASTM A106 to High-Temperature and Pressure Service
ASTM A106 Grade B is the default specification for high-temperature service across refineries, power plants, and industrial boiler systems. The seamless manufacturing process eliminates the weld seam vulnerability that ERW pipes carry under cyclic pressure loading. For projects requiring API 5L compliance alongside ASTM A106, our dual-certified stock satisfies both specifications from a single purchase order. The ASTM A106 seamless carbon steel pipe in OD 10–609 mm covers everything from instrument lines to large-bore process headers.
Engineering Compliance and Certification Requirements
Pressure-containing piping systems demand documentation that satisfies both the design code and the inspecting authority. ASTM A106 pipes supplied under EN 10204 3.1 certification include chemical composition, tensile properties, and hydrostatic test results tied to each heat number. For Middle East and Southeast Asian EPC projects, third-party inspection by SGS or BV is routine — we coordinate witness points at the mill before shipment. [NEED_CITE: ASTM A106 vs API 5L material equivalence for dual-certified pipe]
Steel Grade Selection and Manufacturing Process
ASTM A106 covers three grades — Grade A, Grade B, and Grade C — with increasing carbon and manganese content driving higher tensile and yield strength. Grade B dominates oil field and boiler applications because it balances weldability with strength at elevated temperatures. Hot-rolled ASTM A106 seamless carbon steel pipe suits thick-wall applications above 10 mm, while cold-drawn finishes deliver tighter dimensional tolerance for precision machining. The ±1% tolerance option matters when pipes must fit into pre-fabricated skids with machined grooves or threaded connections. Surface treatment — oiled for transit protection or non-oiled for immediate welding — is specified per purchase order.
Hidden Costs of Sourcing Without Mill Traceability
Buying ASTM A106 seamless carbon steel pipe through trading intermediaries introduces material identity risk. Without direct mill access, buyers cannot verify whether the pipe received proper normalizing heat treatment — a requirement for Grade B in thick-wall sections. Missing or forged MTCs surface during customs inspection or client audit, triggering project delays and re-procurement costs that dwarf the original price difference. [NEED_CITE: consequences of non-conforming pipe in ASME B31.3 process piping systems]
Why Source ASTM A106 Pipe from an Integrated Producer
Our steel mill produces the raw billets; our pipe rolling line finishes them into ASTM A106 seamless carbon steel pipe. This vertical integration means one quality system governs the entire chain — from ladle analysis to final dimensional inspection. We hold 2,800+ specifications in stock, so standard sizes ship within typical production lead times rather than waiting for a third-party mill’s campaign schedule. Our in-house CNC cutting, beveling, and threading services eliminate the need for secondary processing at your yard. Every order ships with a complete documentation package — MTC, WPS, PQR, and dimensional reports — prepared by the same team that manufactured the pipe.
Documentation & Compliance
- Mill Test Certificate per EN 10204 3.1 documenting ASTM A106 Grade B chemical composition, yield strength, tensile strength, and elongation per heat number
- API 5L / API 5CT compliance certificates for dual-grade orders requiring petroleum industry specification conformance
- Third-party inspection reports from SGS, BV, or TÜV covering dimensional verification, visual examination, and NDT witness points
- Material traceability documentation linking each pipe to its original heat number, ladle analysis, and rolling schedule
- Export customs documentation including packing list, bill of lading, and certificate of origin formatted for destination port requirements
Packaging, Loading & Delivery
- ASTM A106 Grade B pipes bundled with steel strips and edge protectors, oiled surface preserved by waterproof wrapping for ocean transit
- OD 10–168 mm pipes loaded in containers with nested stacking optimization; OD 219–609 mm thick-wall pipes shipped in breakbulk or flat rack for oversized cargo
- Beveled-end pipes fitted with plastic caps to protect groove geometry during handling and transport
- Heat number and steel grade stenciled on each pipe end for site identification and MTC cross-referencing
- Custom cut-to-length services available — pipes cut to project-specified lengths with tolerance per ASTM A106 requirements
- FOB, CIF, and DDP terms available with professional loading plans for container and bulk vessel shipments
Start Your ASTM A106 Pipe Inquiry
Submit your project drawings, pipe specifications, steel grade requirements, and destination port to receive a detailed quotation including material cost, fabrication services, coating options, and shipping terms. Our engineering team reviews shop drawings and confirms tolerance requirements before production begins.
Get Your ASTM A106 Quote with Full Mill Documentation
Send your specifications to receive pricing, lead time confirmation, and sample MTC within 24 hours.
Company: Shandong Xin Jiyuan Special Steel Tube Co., Ltd
Tel: +86 531 8573 6315
Mobile/WhatsApp/WeChat: +86 188 5315 7756
Email: admin@xjystructure.com









