Yuan Steel Pipe is a leading supplier of ASTM A106 seamless carbon steel pipe, designed for high-temperature and high-pressure applications. Our ASTM A106 Grade B and Grade C seamless pipes are manufactured to the strictest standards, ensuring reliable performance in refineries, power plants, and industrial facilities worldwide.
Unlike welded pipe, seamless carbon steel pipe has no longitudinal weld seam, providing uniform microstructure and superior strength under extreme conditions. ASTM A106 seamless pipe is the preferred choice for bending, flanging, and similar forming operations, with excellent weldability when required.
Standard: ASTM A106 | Grades: Grade B, Grade C | Service: High-temperature up to 425°C
| Specifications | |
| Standard | ASTM A106 / ASME SA106 |
| Grades | Grade B, Grade C |
| Manufacturing Process | Hot-finished or cold-drawn seamless |
| Size Range (Hot-rolled) | OD 10mm – 1220mm (½" – 48") | WT 1mm – 160mm |
| Size Range (Cold-drawn) | OD 6mm – 140mm | WT 0.5mm – 20mm |
| Length | 3m – 12m random, fixed, or double random |
| Wall Thickness Schedule | SCH 10, SCH 40, SCH 80, SCH 160, SCH XXS |
| End Finish | Plain ends, beveled ends (30° for welding) |
| Testing | Hydrostatic, NDT, tensile, flattening, bend |
| Chemical Composition (% max, unless noted) | |||||
| Grade | C | Si (Min) | Mn | P | S |
| Grade B | 0.30% | 0.10% | 0.29-1.06% | 0.035% | 0.035% |
| Grade C | 0.35% | 0.10% | 0.29-1.06% | 0.035% | 0.035% |
| Mechanical Properties | |||
| Grade | Tensile Strength (Min) | Yield Strength (Min) | Elongation (Min) |
| Grade B | 60,000 psi / 415 MPa | 35,000 psi / 240 MPa | 30% (2" gauge) |
| Grade C | 70,000 psi / 485 MPa | 40,000 psi / 275 MPa | 30% (2" gauge) |
| Heat Treatment Requirements | |
| • ASTM A106 Grade B seamless pipe is normally supplied in the as-rolled condition without heat treatment. | |
| • If heat treated, it may be normalized or normalized and tempered. | |
| • For cold-drawn pipe, stress relief or normalizing may be required depending on grade and size. |
Manufacturing routes
a) Hot-rolled (pilger or continuous mill) – 90 % of tonnage; suitable for heavy wall, ≥ 73 mm OD.
b) Cold-drawn – good surface (Ra ≤ 4 µm), ±0.05 mm OD tolerance, ideal for honed cylinders, bearing races.
c) Hot-extruded – niche, allows thick-wall stainless or alloy; less common for plain carbon.
Advantages of ASTM A106 Seamless Carbon Steel Pipe
Yuan Steel's a106b seamless pipe is engineered for high-temperature and high-pressure applications, offering exceptional performance where reliability matters most. Our a106 carbon steel pipe is manufactured to strict ASTM standards, ensuring consistent quality across every shipment.
Superior High-Temperature Performance
astm a106 seamless pipe is specifically designed for service up to 425°C (800°F), making it the preferred choice for boilers, superheaters, and refinery process lines. Unlike welded alternatives, carbon steel pipe astm a106 maintains its mechanical integrity under thermal cycling and elevated temperatures, reducing the risk of failure in critical systems.
Seamless Construction for Maximum Reliability
As a true astm a106 seamless pipe supplier, our product has no longitudinal weld seam—the weakest point in welded pipe. This seamless construction provides uniform wall thickness and consistent strength throughout, making astm 106 gr. b ideal for bending, flanging, and similar forming operations without compromising structural integrity.
1. Customized Technical Solutions
We offer comprehensive customization including OD, WT, and length adjustments, supplemented with specialized end finishing and anti-corrosion coatings. This technical flexibility makes our ASTM A106 seamless carbon steel pipe ideal for various project specifications.
2. Rigorous Quality Assurance
Implementing strict quality control from material selection to final inspection, each Industrial Seamless Carbon Steel Pipe undergoes multiple NDT tests and required testing, guaranteeing consistent compliance with industry standards and project requirements.
3. Professional Technical Support
Our engineering team provides end-to-end technical services, from product selection to installation guidance, ensuring optimal performance of every astm a106 seamless pipe in your operations.
4. Proven Product Excellence
Our astm a106 seamless pipe strictly complies with standards, delivering superior strength and pressure capacity while maintaining excellent toughness in low-temperature environments. The enhanced corrosion resistance ensures reliable performance even in demanding service conditions.
5. Optimized Cost Efficiency
Through vertical integration and streamlined supply chain management, we maintain competitive pricing while ensuring product quality, providing clients with superior value line pipe solutions.
Our astm a106 seamless steel pipe and a106 seamless steel pipes serve critical roles across multiple industries:
| Industry Applications | |
| Oil & Gas | Our astm a106 seamless pipe is widely used for casing, tubing, gathering lines, and subsea jumpers, where reliability under high pressure is essential. As a trusted astm a106 seamless pipe supplier, we ensure consistent quality for all carbon steel a106 products. |
| Power Generation | A106 seamless steel pipes are specified for boiler water walls, superheater coils, and steam headers, withstanding temperatures up to 425°C. Our astm a106 seamless steel pipe delivers the high-temperature performance required for critical power plant operations. |
| Refining & Chemical | Refineries rely on carbon steel a106 for hydro-cracker units, HF alkylation, and high-pressure hydrogen lines (XS/XXS schedules). As a leading astm a106 seamless pipe suppliers, we provide a106 seamless steel pipes that meet the demanding requirements of petrochemical processing. |
| Mechanical Engineering | ASTM A106 seamless steel pipe is ideal for hydraulic cylinders, drill rods, auto drive-shafts, and crane jibs, offering superior strength and uniform microstructure. Our a106 seamless steel pipes ensure consistent performance in precision mechanical applications. |
| Construction & Structural | From arch bridge chords to roller coasters and jack-up leg chords, astm a106 seamless pipe provides the structural integrity and durability required for demanding construction projects. Choose carbon steel a106 for applications where strength and reliability are paramount. |
Hainan Yuan Steel Pipe Supply Chain Co.,Ltd is one of the leading astm a106 seamless pipe suppliers.
If you want to buy or import best high-quality Industrial ASTM A106 seamless pipe , please kindly feel free to contact us.
