Haihao Group has successfully completed a shipment of low-temperature carbon steel pipe fittings and seamless pipes for a valued customer in Russia, demonstrating our commitment to reliability, precision, and international project standards.
Low-Temperature Service Fittings for Extreme Conditions
The order includes a full range of ASTM A420 WPL6 butt-weld fittings and ASTM A333 Grade 6 seamless pipes, designed to perform in environments with temperatures as low as –52°C. Each fitting meets the requirements of ASME B16.9, while the pipes conform to ASME B36.10 standards.

ASTM A420 WPL6 butt weld fittings for low temperature service shipped to Russia
Main products delivered:
- Elbow 90° LR BW SMLS, 33.4×4.55 mm — ASTM A420 WPL6, ASME B16.9
- Equal Tee BW SMLS, 33.4×4.55 mm & 60.3×5.54 mm — ASTM A420 WPL6, ASME B16.9
- Reducing Tee BW SMLS, 60.3×5.54–33.4×4.55 mm — ASTM A420 WPL6, ASME B16.9
- Seamless Pipe, 33.4×4.55×3000 mm — ASTM A333 Gr.6, ASME B36.10
All materials underwent –52°C impact testing to ensure excellent toughness and performance under low-temperature operating conditions.

ASTM A333 Gr.6 seamless pipes ready for export by Haihao Group
Engineered for Oil, Gas, and Cryogenic Applications
ASTM A420 WPL6 and A333 Gr.6 materials are widely used in oil and gas pipelines, LNG terminals, and cryogenic process systems, where components must maintain structural integrity despite subzero temperatures. Haihao’s advanced manufacturing and quality control guarantee that each fitting and pipe meets mechanical, dimensional, and chemical property requirements.
The products were precisely machined and non-destructively tested before shipment, ensuring consistent wall thickness, smooth bevels, and accurate dimensions for seamless welding during installation.
Commitment to International Standards and Quality
Haihao Group adheres to a strict ISO 9001-certified quality management system, ensuring full traceability from raw material to finished product. Each component is supplied with EN 10204 Type 3.1 certification, verifying compliance with ASTM, ASME, and NACE MR0175 standards as required.
This shipment to Russia once again highlights Haihao Group’s capacity to supply low-temperature carbon steel fittings and pipes that meet the demanding needs of international energy projects.

