ASTM A333 Gr.6 Low Temperature Carbon Steel Seamless Pipe

ASTM A333 Grade 6 Low Temperature Seamless Carbon Steel Pipe

QY Pipe provides ASTM A333 Gr.6 seamless pipes specifically designed for low-temperature and cryogenic service, widely used in LNG, LPG, and cold-climate pipeline projects across the Middle East, Southeast Asia, and Africa.

Key Features

• Standard: ASTM A333 / ASME SA333 Grade 6
• Type: Seamless (hot-rolled or cold-drawn)
• Outer Diameter: 1/8" – 26" (DN6 – DN650)
• Wall Thickness: SCH 10 – SCH XXS
• Impact Test: Charpy V-notch tested at -45°C (-50°F)
• End Finish: Plain End (PE), Beveled End (BE)

Chemical Composition

• Carbon (C): ≤ 0.30%
• Manganese (Mn): 0.29–1.06%
• Phosphorus (P): ≤ 0.025%
• Sulfur (S): ≤ 0.025%
• Silicon (Si): ≥ 0.10%

Mechanical Properties

• Tensile Strength: ≥ 415 MPa (60,200 psi)
• Yield Strength: ≥ 240 MPa (34,800 psi)
• Elongation: ≥ 30%
• Impact Energy: ≥ 27J at -45°C

Typical Applications

• LNG / LPG storage and transport pipelines
• Cryogenic process piping
• Cold-climate oil & gas pipelines
• Refrigeration systems
• Offshore platforms in cold regions

Certifications & Inspection

EN 10204 3.1 Mill Test Report available. Third-party inspection (SGS, BV, Lloyd's) accepted.

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

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