Large diameter Spiral Welded Steel Line Pipes for fluidsTransportation

Large diameter Spiral Welded Steel Line Pipes for fluidsTransportation

The SSAW steel pipe is a spiral pipe made from high-grade steel: Q235AB, X42, or L290. During the roll forming process, we keep the rolls askew in an adjustable angle from parallel with billet center line while at the same time, welding the seam continuously. The resulting pipe is available in large internal diameters. Prior to welding, the wire electrode and flux will be closely checked for any defects. Before roll forming, the steel sheet or strip has to go through flattening, trimming, and surface cleaning. After welding, the weld seam will receive ultrasonic testing and X-ray inspection.

SSAW steel pipe is one of our core products. It is widely used to transfer oil or gas in the underground pipeline. Upon request, we can apply FBE coating or 3LPE coating to the pipe surface to protect the pipe against corrosion.

General Process Flow
Uncoiling - Straightening - Coil Joiner - Straightening - Edge Milling - Delivery - Pre-bending - Spiral Forming - Tack Welding - Plasma Cutting - Tab Welding - Internal & External Submerged Arc Welding - Tab Removal - Weld Grinding - Automatic Ultrasonic Testing - X-Ray Testing - Pipe End Expansion - Hydrostatic Testing - End Facing/Beveling - Ultrasonic Testing - X-Ray & Film Examination - Final Inspection - Weighing & Measuring - Coating - Marking

External Coating

Internal Coating
Single-Layer FBE Coating

Standard: API RP 5L2-2002, DEP 31.40.30.35-Gen-2005

1 Outside Diameter: 219.1 mm - 2540mm (8"-100")
2 Wall Thickness: 6mm - 25.4mm Length:6 - 22 m
3 Standard: API 5L, API 5CT, GB/T9711.1, SY5037-2000
4 Steel Material: Q235A, Q235B, Q345, ASTM A53/106, API 5L GR.A/B, L245 L290 X42 X46 X70 X80, S355, S275 etc.
5 Process: Spiral Submerged- Arc Welding
6 Surface Treatment: Fusion bond Epoxy coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil coating or as per customer's requirement
7 Usage: Used for low pressure fluid delivery, such as water, gas, and oil; construction and piling, chemical industry, power plant, offshore platform etc.
8 Test: Chemical Component Analysis, Mechanical Properties (ultimate tensile strength, yield strength, percentage elongation), Technical Properties (flattening test, bending test, blow test, impact test, exterior size inspection, hydrostatic test, X-ray test)

Who We Are 

Cangzhou High Booming Pipe Equipment Co.Ltd is a leading manufacturer & exporter of steel pipe & pipe fittings in China. Located in Cangzhou, a well-known “steel city” and near to Tianjin, we can make the delivery and container loading much faster and more convenient

High Booming has started its business from OCTG pipes, seamless pipes and expanded to ERW pipes, SSAW pipes, hollow sections and pipe fittings in order to provide one-stop resources integrating services for the clients and help them finish the projects effectively. Our production base is centered in Hebei and Tianjin. And all the factories are API/ISO/CE/FPC certified with highly equipped production lines and sophisticated technical engineers. Meanwhile, given the friendly& trustworthy relationship, we can also suppy the first-hand resources from the large famous mills like TPCO, Baotou Group, Bao Steel, Anhui Tianda, Linzhou Fengbao etc.

Our main product specification:

1. OCTG PIPE: Casing, Tubing, Coupling, Pup Joint, OD 60.3-508mm

2. SMLS PIPE: OD 21.3-914mm

3. ERW steel pipe, LSAW pile pipe, Spiral steel pipe

4. HOLLOW SECTION: OD: 20*20-600*600mm

The steel pipe and fittings are manufactured according to international standards such as GB, ASTM, API, DIN, JIS, EN etc. Custom-made steel product is also acceptable as per customer’s requirements. Engaged in steel industry for 15+ years, High Booming has successfully supported in many kinds of projects, such as oil & gas, well drilling, pipeline transmission, machinery, construction, marine & offshore etc. And our steel products have enjoyed a very good reputation in many countries and regions.

Welcome to visit us !

We look forward to establishing a long-term cooperative relationship with you!