Spirally焊接钢管

Specifications:SSAW (Spiral Submerged-arc Welded) ♦ Quality standard: • API 5L Gas and petroleum pipelines •GB/T9711 Petroleum and natural gas industries--Steel pipe for pipelines •SY/T5037 Spiral submerged arc-welded steel pipe for pipelines for low pressure field fluid service •SY/T 5040 Spiral submerged arc-welded steel pipe piles •CJ/T 3022 Spiral submerged-arc welded steel pipe for municipal heat supply •IS : 1978 Steel tubes for use in transportation of oil; gas & Petroleum products •ASTM A252 WELDEDAND SEAMLESS STEEL PIPE PILES •BS534, BS 3601 DIN 1626, DIN 2460,TS1997, UNI 6363, AWWA C-200 ♦ Steel Grade: •Q195, Q215, Q235, Q275, Q295, Q345, 08F, 08, 08AL, 08F, 10F, 10, HG5, DF08 SPHC, M8 •S185, S235, S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33,St37, St44, ST52 •ASTM A 53: Gr. A, Gr B, Gr C, Gr.D •API 5L: A, B, X42, X46, X52, X56, X60, X65 X70 •GB/T9711: L175, L210, L245, L290, L320, L360, L290, L320, L360, L390, L415, L450, L485, L555 •ASTM A252: Gr.1 Gr.2 Gr.3 ♦ Size range: •Outer Diamter: 219.1mm - 4064mm (8" - 160") •Wall Thickness: 3.2 mm - 25.4mm •Length: 6mtr-18mtr ♦ Outside coating: •Anti-rust oil, black painting. •Epoxy Coating according to AWWA C-210 •Bitumen Coating according to DIN30672, BS534 •Coal- Tar Enamel Coating according to AWWA C-203 •3 Layer polyethylene Coating according to DIN30670 •3 Layer Polypropylene Coating according to DIN30678 •Inside lining: •Epoxy lining according to AWWA C-210 •Bitumen Lining according to DIN30673, BS534 •Coal-Tar Enamel Lining according to AWWA C-203 •Cement Mortar Lining according to AWWA C-205, BS534 ♦ Joint details: •Welded joint: The most widely used type for the joining of steel pipes. Steel pipe is relieved with bevelled ends which are made with special equipment in compliance with the relevant stanards. •Spherical socket joint: provides the possibility of a rotation 10 degrees at the pipeline without the utilization of any special fittings. Steel pipes are welded from outside after proper erectioning according to required angle. •Spigot and socket joint: Wspecially used for the steel pipes inside coated with cement mortar. Steel pipes are welded from outside after erectioning. •Flanged joint: The special manufactured flanged are welded to the ends of the pipe and then jointed with bolts.