API 5L SSAW Steel Pipe is for oil and gas industries pipelines, developed for different working environments. The steel line pipe material generally in carbon steel and comply to API SPEC 5L specifications.
Applied for petroleum and natural gas industries, oil industries requirements for transportation and are expected working in extreme situations, low and high temperatures, corrosion resistance for corrosive environments, and for sour services in H2S conditions.
SSAW pipe manufacturing process
SSAW pipe applied for diameters up to 60 in (1524 mm)
SSAW Steel Pipe Manufacturing Flow Chart:
Uncoiling – Flattening – Shearing and Butt Welding – Edge Milling – Preliminary Rolling – Forming – Inside and Outside Welding – Cutting Off – Ultrasonic Testing – X Ray Test – Weld Grinding for Pipe Ends – Expanding at Pipe Ends – Hydrostatic Test – Ultrasonic Inspection – Pipe Ends Beveling – X Test – Production Inspection – Marking – Warehousing
Size:
Outer Diameter: 1/8"-36"(10.3mm-914.4mm)
Wall Thickness: 1.0mm-20mm
Length: Random Length,SRL,DRL(4-14M)
Steel Grade:
A53 Gr. A, Gr B, A106 GR.A GR.B A333 GR1 GR3 GR6
End:pland ends beveled ends
Surface: Bare, Black,Lightly oiled, Hot dip galvanized,, Varnish coating/Anti rust oil, Protective Coatings, 3PE
Packing:Nude, Plastic/steel plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips, Plastic caps.
Common Class: API 5L Gr.B PSL1, PSL2, Sour Service pipe
Medium: X42, X46
Medium: X52
Medium and high: X56
High level: API 5L X60 PSL1, PSL2 LSAW line pipe
High: API 5L X65 PSL1, PSL2 LSAW/SSAW line pipe
Premium high: API 5L X70
Premium high: API 5L X80
PSL2 pipe comes with suffix letter of N, Q, M, eg API 5L X52N, API 5L X60Q/M.
Sour service pipe with suffix letter NS, QS, MS, eg API 5L X65QS.
| ASTM A53 /A106 Chemical Components and Machanical Property | |||||||||||||
| Standard | Steel Grade | Chemical Components | Machanical Property | ||||||||||
| C | Mn | P | S | Cu | Ni | Cr | Mo | V | Tensile Strength (Mpa) | Yield Strength(Mpa) | Elongation (Mpa) | ||
| ASTM A53 | A | ≤0.25 | ≤0.95 | ≤0.05 | ≤0.045 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | ≥330 | ≥205 | ≥29.5 |
| B | ≤0.30 | ≤1.20 | ≤0.05 | ≤0.045 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | ≥415 | ≥240 | ≥29.5 | |
| Standard | Steel Grade | Chemical Components | Machanical Property | ||||||||||
| C | Si | Mn | P | S | Cu ,Ni | Cr | Mo | V | Tensile Strength (Mpa) | Yield Strength(Mpa) | Elongation (Mpa) | ||
| ASTM A106 | B | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | ≥415 | ≥240 | ≥30 |
| C | ≤0.35 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 | ≥485 | ≥275 | ≥30 | |
Welded Pipe manufacturing types
There are 3 welding types: ERW (Electric Resistance Welding), LSAW (Longitudinally Submerged Arc Welding), and SSAW (Spirally Submerged Arc Welding) welding types.
ERW pipe is a type of Resistance pipe stands apart from welded pipe and DC welded pipe in two different manners as listed below. Based on the welding frequency, the IF welding for low frequency and the ultra-IF welding for high frequency. In case of thin-walled pipe, there is a high frequency weld used typically in case of contact welding and induction welding. When the usage is for a small-diameter pipe, they make use of DC welding. There is a high frequency welding process used to manufacture pipes that are comprehensive and is of ERW type. For oil and gas storage, the best recommended type is ERW longitudinal, owing to its quality, ease of transport and cost.
Both LSAW pipe and SSAW pipe are SAW pipe (Submerged Arc Welding Steel Pipe), is manufactured by making use of a submerged arc soldering process for preparing the steel and it results in high density pipe. Owing to the flux layer, there is no instant heat loss and it gets concentrated near the weld. It results in high quality, highly efficient arc and smoke, which finds intensive usage in pressure vessels, pipe manufacturing, beams, fluids, steel works etc. SAW pipe find its main usage in LSAW pipe, which is Longitudinally Submerged Arc Welding pipe.
ERW welded pipe manufacturing process
ERW process normally applied to the pipe below 24 in, 609 mm.
ERW/HFW Longitudinally Welding Steel Line Pipe (Electric Resistance Welding ) Manufacturing Flow Chart
Uncoiling – Flattening – Shearing and Butt Welding – Loop Storing – Plate UT – Trimming – Forming – High Frequency Welding – Removal of Inside and Outside Blurs – Ultrasonic Testing – Annealed by Medium Frequency – Air Cooling – Water Cooling – Sizing – Straightness – Cutting Off – Dimension and Initial Surface Inspection – Pipe Ends Beveling – Hydrostatic Test – Ultrasonic Testing of Entire Tube – Off Line Ultrasonic Testing – Ultrasonic Testing for Pipe Ends – Dimension and Final Surface Inspection – Corrosion Resistant Coating – Marking – Pipe Ends Protection – Inspection and Warehousing
LSAW Pipe (JCOE Pipe)manufacturing process
LSAW pipe applied to diameters from 20 in (508 mm) to 40 in (1016 mm), LSAW pipe also named as JCOE pipe by manufacturing procedures, forms in J Shape – C Shape – O Shape and E Cold Expansion.
Company introduction
Established in 1989, Hebei Shengtian Pipe-Fitting Group Co., Ltd. located in Mengcun County Hebei Province China, covering a land area of 100,000 square meters, with a workshop of 25,000 square meters and registered capital of 110 million RMB. Our company has a strong staff team. There are over 360 employees, including over 30 professionals and technicians.
We are capable of manufacturing various pipe fittings. Our main products scope: steel elbow, tees, bends, reducers, caps, forged flanges and sockets. We have been in this line for over 20 years. Our products are exported to many countries and regions, such as Southeast Asia, the Middle East, Europe and America etc. Our pipes and pipe fittings enjoy a good reputation in domestic and foreign markets. Every year, hundreds of foreign visitors and innumerable domestic visitors come to our company for business cooperation.
We have first-class inspection devices, perfect detecting means and well-trained specialists. And we stick to ISO9000:2000 quality system and efficiently control procedure in production. We have confidence that we can supply the best quality products. We would like to take responsibility for any quality uncertainty. Even so, our price is competitive. Besides, we can provide the best service to you.
Applications of the API 5L SSAW Steel Pipe For Petroleum and natural gas industries, steel pipe for pipeline transportation systems.Hebei shengtian pipe-fitting group Co., ltd.supplied the pipe complied to the international standard API 5L, which specified requirements for the manufacture of two product specifications levels (PSL1 and PSL2) of welded line pipe for use in pipeline transportation systems in the oil and gas industries.
