Coated 3PE Steel Tube

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

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Packaging & Delivery

Packaging Detail:	Plastic plugs in both ends Hexagonal bundles of max. 2000kg with several steel strips Two tags on each bundle Wrapped in waterproof paper PVC sleeve and sackcloth with several steel strips Plastic caps
Delivery Detail:	within 45 days after confirmation

Specifications

API 5L PSL1/PSL2 Gr.B/X42/X52/X56/X60/X65/X70/X80 3PE/FBE Coated Line Pipe
OD: 2"-30",
WT:0.250"-4"
L:random,fixed,SRL,DRL

Application

Used for construction of long distance pipelines for combustible liquids and gases, nuclear station pipelines, heating system pipelines, general-purpose pipelines, vessels manufacturing, mechanical engineering and instrumental engineering.

DISTINCTIVES FEATURES

A) The External surface is shot-blasted (Sa 2 1/2) by removing millscale and rust, obtaining metal surface to facilities the adhesion.
B) The pipe is heated in a electric or gas oven at a controlled temperature.
C) The adhesive is then applied by hot meit or copolymer. It binds the polythylene to the steel.
D) Immediately afterwards, the extruded polyethylene/polyprophylene is coated on the pipe.
E) After application of the polyethylene/polyprophylene, the pipe is coated by spraying water.

Process

SEAMLESS

HOT ROLLED

COLD DRAWN

WELDED

ERW (Electric Resistance Welded)

HFI (High Frequency Induction)

EFW(ELECTRIC FUSION WELDED TUBE)

LSAW (Longitudinal Submerge-arc Welded) UO(UOE),RB(RBE),JCO(JCOE)

DSAW (Double Submerged arc welded)

SAW (Spiral Welded)

SSAW (Spiral Submerged-arc Welded)

Quality Standard

SEAMLESS PROCESS

GB/T 8163 Seamless steel tubes for liquid service

ASTM A106 Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service

DIN 1629 SEAMLESS CIRCULAR TUBES OF NON ALLOY STEELS WITH SPECIAL QUALITY REQUIREMENTS

API 5L Line Pipe

WELDED PROCESS

ERW HFI , EFW, LSAW, DSAW

GB/T3091 Welded steel pipe for low pressure liquid delivery

GB/T9711 Petroleum and natural gas industries--Steel pipe for pipelines

EN10217 Welded steel tubes for pressure purposes.

IS 3589 Steel tubes for water and sewage

IS 1978-1982 Steel tubes for use in transportation of oil; gas & Petroleum products

BS 1387 Steel Tubes for use for Water, Gas, Air and Steam

ASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

DIN 2458 WELDED STEEL PIPES AND TUBES

API 5L Line Pipe

SAW SSAW

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

API 5L Line Pipe

Coating Standard

ANSI/AWWA C104/A21.4 American National Standard for Cement-Mortar Lining for Ductile-Iron Pipe and Fittings for Water

ISO 21809 Petroleum and natural gas industries -- External coatings for buried or submerged pipelines used in pipeline transportation systems

DIN 30670 Polyethylen coatings of steel pipes and fittings

Steel Grade

SEAMLESS PROCESS

GB/T 8163 10# 20# 35# 45# 16MN(Q345B)

GB 3087 10# 20# 35# 45# 16MN(Q345B)

GB 5310 20G 12Cr1MoV 12Cr1MoVG 12CrMoG

ASTM A106 Gr A Gr B Gr C

DIN 1629 St 37.0 St 44.0 St 52.0

API 5L A B X42X46 X52 X60 X65 X70 X80

WELDED PROCESS

GB/T3091 SY/T5037 SY/T 5040CJ/T 3022

Q195 Q215 Q235 Q275 Q295 Q345 08F 08 08AL 08F 10F 10 HG5 DF08 SPHC M8

BS 1387 EN10217 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

Size

SEAMLESS PROCESS

Outer Diameter Hot finish 2" - 30" Cold drawn 0.875" - 18"

Wall Thickness Hot finish 0.250" - 4.00" Cold drawn 0.035" - 0.875"

Length Random Length Fixed Length SRL DRL

WELDED PROCESS

ERW HFI EFW

Outer Diameter 6mm-610mm (1/16"-24")

Wall Thickness 0.3mm-22mm

Length 0.5mtr-20mtr

LSAW DSAW

Outer Diameter 219mm-1820mm

Wall Thickness 5.0mm-50mm

Length 6mtr-18mtr

SAW SSAW

Outer Diamter 219.1mm - 4064mm (8" - 160")

Wall Thickness 3.2 mm - 40mm

Length 6mtr-18mtr

End

square ends (straight cut saw cut and torch cut);

beveled for welding (All line piping is square cut to the tolerance specified and bevelled to ANSI B16.25. An angle of 30º (-0º +5º) and a landing of 16 mm ±08 mm is applied. Schedule 160 material is supplied without bevelling.)

Surface Lightly oiled Hot dip galvanized Electro galvanized Black Bare Varnish coating/Anti rust oil Protective Coatings (Coal Tar Epoxy Fusion Bond Epoxy 3-layers PE)

Test Chemical Component Analysis Mechanical Properties (Ultimate tensile strength Yield

strength Elongation) Technical Properties (Flattening Test Bending Test Hardness Test Blow Test Impact Test etc.) Exterior Size Inspection Hydrostatic Test(The standard pressure is limited to 207 MPa (3000 psi)) X-ray Test.

Mill Test Certificate EN 10204/3.1B

Third party inspection SGS BV Lloyds etc.

①How is the quality of your products?
Our products are manufactured strictly according to national and internaional standard, and we take a test
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

②How about price?
Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.

③Why should you chose us?
Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

Q:Seamless steel tube 89X4 meters, how heavy?: The theoretical weight calculation formula of plain carbon steel and alloy steel seamless pipe:W=0.02466 (D-S) S, the density of steel fand 7.85kg/dmNote: weight per meter kg/m= (outer diameter wall thickness) * wall thickness *0.02466 units, mm: mmFor example, the seamless steel pipe with a diameter of 89*4 weight per meter:(89-4) *4*0.02466=8.384 kg / M.

Q:How do you calculate the pipe flow rate coefficient for steel pipes?: To calculate the pipe flow rate coefficient for steel pipes, you can use the Darcy-Weisbach equation, which takes into account the pipe diameter, length, roughness factor, and the fluid properties such as viscosity and density. By rearranging the equation and solving for the flow rate coefficient, you can determine the value using empirical correlations or by conducting experimental tests under controlled conditions.

Q:How do you protect steel pipes from fire?: There are several measures available to protect steel pipes from fire. One commonly used approach involves applying fire-resistant coatings or paints to the surface of the pipes. These coatings or paints are specifically designed to endure high temperatures and create a barrier that prevents heat from reaching the steel. Another effective method is to wrap the steel pipes with fire-resistant insulation materials. These materials serve as a buffer, reducing heat transfer and slowing down the spread of fire. Mineral wool or ceramic fiber blankets are commonly utilized for this purpose. It is also crucial to ensure proper installation and support for the steel pipes. This includes maintaining adequate clearance from other flammable substances and avoiding overcrowding or obstructions that could hinder the flow of air around the pipes. Sufficient spacing between pipes is also essential to prevent heat transfer between them. Moreover, incorporating firestop systems is recommended when steel pipes pass through fire-rated walls or floors. These systems consist of fire-resistant materials and seals that prevent the spread of fire and smoke through openings or penetrations in fire-rated barriers. Regular maintenance and inspections are essential to uphold the ongoing effectiveness of the fire protection measures. Any damage or deterioration of the coatings, insulation, or firestop systems should be promptly addressed to maintain the fire resistance of the steel pipes. In conclusion, a combination of fire-resistant coatings, insulation, proper installation, and maintenance practices is imperative for safeguarding steel pipes against fire hazards. These measures play a crucial role in minimizing the risk of fire-related damage and ensuring the safety of both the pipes and the surrounding environment.

Q:Can steel pipes be used for geothermal applications?: Yes, steel pipes can be used for geothermal applications.

Q:Are steel pipes suitable for use in pharmaceutical industries?: Yes, steel pipes are suitable for use in pharmaceutical industries. Steel pipes are known for their durability, strength, and resistance to corrosion. These qualities make them ideal for transporting chemicals, gases, and liquids safely and efficiently within pharmaceutical facilities. Additionally, steel pipes can be easily cleaned and sanitized, ensuring the maintenance of high hygienic standards required in the pharmaceutical industry.

Q:Can steel pipes withstand high temperatures?: Yes, steel pipes can withstand high temperatures as they have a high melting point and excellent heat resistance properties, making them suitable for various industrial applications involving high temperature environments.

Q:How much is 4 inches steel tube MM?: The standard wall thickness is 4mm, so the outer diameter is 114mm.

Q:What are the common materials used for pipe fittings in steel pipes?: Pipe fittings in steel pipes can be made from various materials, including carbon steel, stainless steel, and alloy steel. Carbon steel fittings are popular due to their affordability, strength, and durability, making them suitable for applications in oil and gas, petrochemical, and water distribution systems. On the other hand, stainless steel fittings are highly resistant to corrosion and are commonly used in industries that prioritize hygiene, such as the food and beverage and pharmaceutical sectors. Alloy steel fittings, which consist of elements like chromium, nickel, and molybdenum, are designed to enhance strength and corrosion resistance, making them ideal for high-pressure and high-temperature environments like power plants and chemical facilities. Ultimately, the selection of pipe fitting material in steel pipes depends on the specific requirements of the application and the surrounding conditions.

Q:What is the single length of galvanized steel pipe?: The single length of galvanized pipe is 6 meters. The length of galvanized seamless steel tube is uncertain, depending on the length of seamless steel tube.

Q:What is the thermal expansion coefficient of steel pipes?: The thermal expansion coefficient of steel pipes is typically around 0.000011 to 0.000012 per degree Celsius, which means that for every degree Celsius increase in temperature, the length of the steel pipe will expand by approximately 0.0011% to 0.0012%.

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