ASTM A106 Gr.B Carbon Steel Seamless Pipe

ASTM A106 Grade B Seamless Carbon Steel Pipe

QY Pipe supplies high-quality ASTM A106 Gr.B seamless carbon steel pipes, the industry standard for high-temperature and high-pressure service in boilers, refineries, and steam systems worldwide.

Key Features

• Standard: ASTM A106 / ASME SA106 Grade B
• Type: Hot-rolled or cold-drawn seamless
• Outer Diameter: 1/8" – 26" (DN6 – DN650)
• Wall Thickness: SCH 10 – SCH XXS (per ASME B36.10M)
• Length: Random (R1/R2) or fixed length per order
• End Finish: Plain End (PE), Beveled End (BE), Threaded End (TE)

Chemical Composition

• Carbon (C): ≤ 0.30%
• Manganese (Mn): 0.29–1.06%
• Phosphorus (P): ≤ 0.035%
• Sulfur (S): ≤ 0.035%
• Silicon (Si): ≥ 0.10%

Mechanical Properties

• Tensile Strength: ≥ 415 MPa (60,200 psi)
• Yield Strength: ≥ 240 MPa (34,800 psi)
• Elongation: ≥ 30%

Typical Applications

• Boiler and superheater tubes
• High-temperature steam pipelines
• Oil refinery process piping
• Power generation plants
• Petrochemical plants

Available Mill Test Certificates

EN 10204 3.1 / 3.2 Mill Test Report available. Third-party inspection (SGS, BV, TÜV) accepted.

MOQ: 1 Ton | Lead Time: 15–30 days | Origin: China

📧 Contact us for custom sizes, bulk pricing, and FOB/CIF quotations.