OEM China Seamless Steel Pipe – Erw Welded Pipe

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1. Materails: 20#, Q345B, GR.B, X42, X56, P11, P22, ST37, ST45.8, ST52, S235JR, S355JR, STP430 2. Standard: GB/T8162, GB/T8163, API 5L, A106, A53, A335, A333, DIN1629, DIN2448, NF A49, GOST8731, JIS, G3454 3. Specification Outer diameter:1/4”-32” (13.7mm-762mm) Wall thickness:1.5mm-80mm Length:2m- 12m 4. End:Plain end, beveled end, thread, coupling, plastic cap in the both end, pipe clamp. 5. Surface:Oiled, black painted or varnish, galvanized, 3PE, FBE, or other epoxy coating. 6. Pr...


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OEM China Seamless Steel Pipe – Erw Welded Pipe Detail:

1. Materails: 20#, Q345B, GR.B, X42, X56, P11, P22, ST37, ST45.8, ST52, S235JR, S355JR, STP430
2. Standard: GB/T8162, GB/T8163, API 5L, A106, A53, A335, A333, DIN1629, DIN2448, NF A49, GOST8731, JIS, G3454
3. Specification
Outer diameter:1/4”-32” (13.7mm-762mm)
Wall thickness:1.5mm-80mm
Length:2m- 12m
4. End:Plain end, beveled end, thread, coupling, plastic cap in the both end, pipe clamp.
5. Surface:Oiled, black painted or varnish, galvanized, 3PE, FBE, or other epoxy coating.
6. Process:Hot-rolled, cold drawn, thermal expansion

 

7. Inspection:Hydrostatic testing, ultrasonic testing, eddy current testing, magnetic particle testing, impact testing, hardness testing, etc.
8. Application:Petroleum, chemical, electric power, water, construction, pipelines, etc

9. Normal seamless pipe

Materials Specification Applications
A106 OD:113.7 mm – 762 mm
W.T.:1.5 mm – 80 mm
Petroleum, chemical, boilers, power stations, ships, machinery manufacturing, automotive, aviation, aerospace, energy, geology, construction and military
A53 OD:113.7 mm – 762 mm
W.T.:1.5 mm – 80 mm
For transmission water, oil, gas and other high temperature fluid.
A333 OD:113.7 mm – 762 mm
W.T.:1.5 mm – 80 mm
Suitable for -45℃~-195℃ level low temperature pressure vessel pipe and low temperature heater exchanger pipe

10. 2PE/ 3PE anti-corrosion and single-layer PE anticorrosive

1).3PE anticorrosive:
Three-layer structure of PE pipe corrosion: the first layer of powder epoxy (FBE> 100um),the second layer of adhesive ( AD) 170~250um, a third layer of polyethylene (PE) 2.5~3.7mm. Three materials integration, and with the steel firm to form an excellent coating.
Diameter range of Φ60~Φ1420

2).2PE anti-corrosion steel pipe:
PE pipe corrosive story structure, the first layer of adhesive (AD), a second layer of polyethylene (PE), the same as the standard blend of two materials, the thickness of layers with three PE: SY/ T0413-2002 buried steel pipeline polyethylene coating technology standards GB/ T23257-2009 buried steel pipeline polyethylene coating technology standards

3). Single PE anti-corrosion steel:
single layer PE is the use of anti-corrosion steel curtain coating process ( also known as curtain method), the steel pipe after rotation frequency heating, steel top is fitted with a polyethylene powder container by pouring dusted steel tube surface polyethylene coating.

4). 3PE anticorrosive and external single PE anticorrosive performance comparison

performance comparison Outer 3PE FBE epoxy pipe Outer single polyethylene pipe
Sintered outer coating process Wrapped three-layer structure Curtain method, curtain coating, single
Anti-corrosion structure The middle layer is adhesive, outer-storey-density polyethylene Single layer polyethylene, low density polyethylene
Coating thickness 2.5-4mm 1-1.5mm
Adhesion Strong Generally, intolerance boiled
Performance Corrosion resistance, wear resistance Impact general, intolerance scratches
Defect No Easy to pinholes, leveling uneven apperance

11. Coal tar epoxy

1). Composition:
The product is formulated with an epoxy resin, coal tar pitch, anti-rust pigments, additives, modified amine from. Products with rapid drying, good adhesion, flexibility, and easy two-component packaging and construction. With acid, alkali, salt, water, oil etc.

2).Characteristics and Uses:

①The paint combination of high mechanical strength epoxy resin adhesive force, erosion and chemical resistance characteristics of asphalt water-resistant, anti-microbial, anti-plant roots, is a high performance anti-corrosion insulation coating, the products are Good chemical resistance, water resistance.

②suitable for oil, gas and water pipelines, water, gas, pipelines, refineries, chemical plants, sewage treatment plants and pipeline corrosion of equipment, may be used as antiseptic and mining offshore oil rigs and underwater portion of the ship , corrosion downhole equipment.

3). Coat corrosion
 High-density polyethylene jacket anticorrosive structure: the outer surface of the pipe wrapped high density polyethylene material with high mechanical strength and excellent corrosion resistance, can protect the pipe to avoid the transportation, installation and use of the process due to external factors damage caused. Manufacturing outer casing should be added antioxidants, UV stabilizers, and carbon black. Polyethylene outer tube easy to aging, such as open storage and other objects appropriate to tarp covered dumps should be kept away from heat and ignition sources, made after anti-corrosion steel, prohibit exposure, quenched, or polyethylene outer tube easy to crack, the impact of product performance and service life.

4). The process has been the duty epoxy powder coating using electrostatic spraying. Since epoxy powder Jin Su troubled by adhesion, epoxy powder dip has not been able to promote. Current come with three coconut epoxy powder dip developed special phosphate solution, for the first time to overcome the adherence problem epoxy powder dip process, began to dip epoxy powder of this emerging technology.

5). corrosion standards

FBE epoxy powder preservative execution SY / T0315-2005 《steel pipeline single FBE topcoat technical specifications》

 2PE / 3PE preservative execution GB / T23257-2009 《buried steel pipeline polyethylene outer coating technology standards》
 Anticorrosive surface rust criteria: the outer surface of steel pipe sand-blasting by GB / T8923-2008 requirements of Sa2 1/2 grade steel anchor profile of the surface of 40-100μm.


6). Applications
Anti-corrosion steel base material including spiral, straight seam pipe, seamless pipe, etc., are widely used in our long-distance water, petroleum, chemical, natural gas, heating, sewage treatment, water, bridges, steel, marine water piling pipeline engineering.
7). Advantages
①improve the life of the steel pipe;
②combination of mechanical strength and plastic pipe corrosion resistance in one;
③outer coating of 2.5mm or more, scratch resistance, bump;
④inner wall of the friction coefficient is small, 0.0081-0.091, reduce energy consumption;
⑤the inner walls meet the national health standards;
⑥smooth wall is not easy scaling, self-cleaning function。

Product detail pictures:

OEM China
 Seamless Steel Pipe – Erw Welded Pipe detail pictures

OEM China
 Seamless Steel Pipe – Erw Welded Pipe detail pictures

OEM China
 Seamless Steel Pipe – Erw Welded Pipe detail pictures

OEM China
 Seamless Steel Pipe – Erw Welded Pipe detail pictures

OEM China
 Seamless Steel Pipe – Erw Welded Pipe detail pictures

OEM China
 Seamless Steel Pipe – Erw Welded Pipe detail pictures


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Our firm since its inception, normally regards item top quality as company life, constantly make improvements to generation technology, improve product excellent and repeatedly strengthen organization total good quality management, in strict accordance with the national standard ISO 9001:2000 for OEM China Seamless Steel Pipe – Erw Welded Pipe, The product will supply to all over the world, such as: Borussia Dortmund , European , Colombia , Our staffs are rich in experience and trained strictly, with qualified knowledge, with energy and always respect their customers as the No. 1, and promise to do their best to deliver the effective and individual service for customers. The Company pays attention to maintaining and developing the long-term cooperation relationship with the customers. We promise, as your ideal partner, we'll develop a bright future and enjoy the satisfying fruit together with you, with persisting zeal, endless energy and forward spirit.
  • The customer service staff's attitude is very sincere and the reply is timely and very detailed, this is very helpful for our deal,thank you.
    5 Stars By Penelope from Kyrgyzstan - 2015.04.25 16:46
    Factory equipment is advanced in the industry and the product is fine workmanship, moreover the price is very cheap, value for money!
    5 Stars By Olive from Liverpool - 2016.05.02 18:28

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