OCTG

Tubería de acero de la carcasa de aceite Tubería de tubería de aceite Varilla de bombeo Acoplamiento de tubería y revestimiento Pup Joint Tubo de perforación Collares de perforación Screen Pipe

Tubería de acero sin costura

Tubería de acero sin costura Tubería de acero para calderas Tubo de línea sin costura Honed Tubo Tubo de cilindro hidráulico U Tubo Tubo intercambiador de calor Tubo de baja temperatura Tubos de precisión sin soldadura Tubo mecánico sin soldadura de carbono

Accesorios de tuberia

Reducer Bend Tee Cap Elbow flange

Tubo de sección hueca de acero

Tubo de sección hueca inoxidable Tubo de sección hueca de carbono

Placa de acero

Placa de acero de Aluminio Placa de acero al carbono Plato de acero inoxidable

Tubo de línea sin costura

Producto: Tubería de conducción, Tubería de conducción API, Tubería de conducción sin soldadura, Tubería de conducción de acero al carbono

Especificación:

Outer Diameter(OD): 73-630mm

Wall Thickness(WT): 6-35mm

LENGTH: 5.8/6/11.8/12m

Estándar &Grado: API 5L:Gr.A,Gr.B, X42,X46,X52,X56,X60,X65 PSL1 and PSL2 L210,L245,L290,L320,L360,L390,L415,L450,L485

End: Square Ends/Plain Ends (straight cut, saw cut, torch cut),Beveled/Threaded Ends

Superficie: pintura negra/pintura al óleo/aceite antioxidante/revestimiento anticorrosivo

Embalaje: incluido, tapas de plástico tapadas, papel impermeable/envuelto en bolsa

Aplicación: Para transporte en industrias de petróleo y gas natural.

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Introduction

Product:Line Pipe, API Line Pipe, Seamless Line Pipe, Carbon Steel Line Pipe

Specification:

Outer Diameter(OD): 73-630mm

Wall Thickness(WT): 6-35mm

LENGTH: 5.8/6/11.8/12m

Pipe Standard:
API 5L PSL1/PSL2 Gr.A,Gr.B,X42,X46,X52,X56,X60,X65,X70
API 5L PSL1/PSL2 L210,L245,L290,L320,L360,L390,L415,L450,L485

End: Square Ends/Plain Ends (straight cut, saw cut, torch cut),Beveled/Threaded Ends

Surface:Black Painting/Oil Painting/Anti-Rust oil/Anti-Corrosive Coating

Packing: Bundled,Plastic Caps Plugged,Waterproof Paper/Bag Wrapped

Application:For Transportation in petroleum and natural gas industries

Line pipe is a tube made of high strength carbon steel. It is typically manufactured according to the API 5L metallurgical specification developed by the American Petroleum Institute (API). The raw material can be either seamless or welded carbon steel or stainless steel piping. This product can be used to build pipelines that transport a variety of resources including natural gas, oil, petroleum, and water. API 5L line pipe is available in various diameters ranging from two inches to 48 inches. Its size and diameter required for a pipeline vary according to the amount of gas or liquid that it intended to carry and the pressures it must withstand.

Seamless Line Pipe

Steel Grade: B, X42, X52, X60, X65, X70

Dimension: 1"/2" - 24"

Process:hot rolling, hot expanding

Welding Line Pipe

Steel Grade: B, X42, X52, X60, X65, X70, X80

Dimension: 2" - 30"

Process: ERW, SSAW, LSAW, HFW, JCOE.

Standard: API 5L / ISO 3183 Hot Rolled

Type: Seamless / ERW / Welded / Fabricated / CDW

Outer Diameter Size: 3/8" NB To 30" NB (Nominal Bore Size)

Wall Thickness: Schedule 20 To Schedule XXS (Heavier On Request) Up to 250 mm Thickness

Length: 5 To 7 Meters, 09 To 13 Meters, Single Random Length, Double Random Length And Customize Size.

Pipe Ends: Plain Ends / Beveled Ends / Coupling

Surface Coating: Epoxy Coating / Colour Paint Coating / 3LPE Coating.

Grades: API 5l Grade B X42, API 5l Grade B X46, API 5l Grade B X52, API 5l Grade B X56, API 5l Grade B X60, API 5l Grade B X65, API 5l Grade B X70

Line pipes can be categorized in different types. The following pipelines are classified according to the type of fluids and items transported.

- Water and Drain Line Pipe

This kind of Line pipes are typically utilized to carry water from treatment plants to buildings or houses. They form a network of underground pipes under cities and streets. Water pipes are normally buried numerous feet (one meter or more) underground. When metal pipes are used to carry drinking water, they are normally lined with plastic or cement inside to prevent rust. The exterior of the steel pipelines is also coated with asphalt products and wrapped with special tape to minimize corrosion due to exposure to particular soils.

- Oil Line Pipe

There are two types of oil pipeline: petroleum pipeline and product pipeline. While the former brings petroleum to refineries, the latter transports fine-tuned items such as gas, kerosene, jet fuel, and heating oil from refineries to the marketplace. Different grades of crude oil or various refined products are generally carried through the exact same pipeline in different batches. Blending in between batches is small and can be managed.

- Gas Line Pipe

Essentially all overland gas is transported by pipeline. The majority of other nations worldwide likewise use gas and have gas pipelines.

- Line Pipe for Carrying Other Fluids

Pipelines have been built to bring lots of other liquids. Liquid fertilizers, for example, are typically carried cross countries by pipeline. Liquefied natural gas (LNG) transported by ships (tankers) also needs short pipelines to connect ships to onshore tank. On a smaller sized scale, many chemicals, food, and pharmaceutical plants utilize pipes to carry numerous liquids and gases within the plant.

Specification

DIMENSIONS AND SIZES OF LINE PIPE

NPS		O. D.	Nominal Wall Thickness
DN	Inch	mm	SCH 5S	SCH 10S	SCH 10	SCH 20	SCH 30	SCH 40	SCH 60	SCH 80	SCH 100	SCH 120	SCH 140	SCH 160	STD	XS	XXS
50	2″	60.3	1.65	2.77	–	–	–	3.91	–	5.54	–	–	–	8.74	3.91	5.54	11.07
65	2-1/2″	73	2.11	3.05	–	–	–	5.16	–	7.01	–	–	–	9.53	5.16	7.01	14.02
80	3″	88.9	2.11	3.05	–	–	–	5.49	–	7.62	–	–	–	11.13	5.49	7.52	15.24
90	3-1/2″	101.6	2.11	3.05	–	–	–	5.74	–	8.08	–	–	–	–	5.74	8.08	–
100	4″	114.3	2.11	3.05	–	–	–	6.02	–	8.58	–	11.13	–	13.49	6.02	8.56	17.12
125	5″	141.3	2.77	3.4	–	–	–	6.55	–	9.53	–	12.7	–	15.88	6.55	9.53	18.05
150	6″	168.3	2.77	3.4	–	–	–	7.11	–	10.97	–	14.27	–	18.26	7.11	10.97	21.95
200	8″	219.1	2.77	3.76	–	6.35	7.04	8.18	10.31	12.7	15.09	18.26	20.62	23.01	8.18	12.7	22.23
250	10″	273.1	3.4	4.19	–	6.35	7.8	9.27	12.7	15.09	18.26	21.44	25.4	28.58	9.27	12.7	25.4
300	12″	323.9	3.96	4.57	–	6.35	8.38	10.31	14.27	17.48	21.44	25.4	28.58	33.32	9.53	12.7	25.4
350	14″	355.5	3.96	4.78	6.35	7.92	9.53	11.13	15.09	19.05	23.83	27.79	31.75	35.71	9.53	12.7	–
400	16″	406.4	4.19	4.78	6.35	7.92	9.53	12.7	16.66	21.44	26.19	30.96	36.53	40.49	9.53	12.7	–
450	18″	457.2	4.19	4.78	6.35	7.92	11.13	14.27	19.05	23.83	39.36	34.93	39.67	45.24	–	–	–
500	20″	508	4.78	5.54	6.35	9.53	12.7	15.09	20.62	26.19	32.54	38.1	44.45	50.01	–	–	–
550	22″	558.8	4.78	5.54	6.35	9.53	12.7	–	22.23	28.58	34.93	41.28	47.63	53.98	–	–	–
600	24″	609.6	5.54	6.35	6.35	9.53	14.27	17.48	24.61	30.96	38.89	46.02	52.37	59.54	–	–	–

If the sizes you are looking for are not in the chart above, please feel free to let us know. We will make efforts to meet your needs.

CHEMICAL COMPOSITION OF LINE PIPE

API 5L PSL-1 Chemical Component

Steel Grade	Mass fraction, based on melting and product analysis %
	C	Mn	P		S	V	Nb	Ti
	max.	max.	min.	max.	max.	max.	max.	max.
L175 or A25	0.21	0.60	–	0.030	0.030	–	–	–
L175P or A25P	0.21	0.60	0.045	0.080	0.030	–	–	–
L210 or GR. A	0.22	0.90	–	0.030	0.030	–	–	–
L245 or GR. B	0.26	1.20	–	0.030	0.030	–	–	–
L290 or X42	0.26	1.30	–	0.030	0.030	–	–	–
L320 or X46	0.26	1.40	–	0.030	0.030	–	–	–
L360 or X52	0.26	1.40	–	0.030	0.030	–	–	–
L390 or X56	0.26	1.40	–	0.030	0.030	–	–	–
L415 or X60	0.26	1.40	–	0.030	0.030	–	–	–
L450 or X65	0.26	1.45	–	0.030	0.030	–	–	–
L485 or X70	0.26	1.65	–	0.030	0.030	–	–	–

- API 5L PSL-2 Chemical Component

Steel Grade	Mass fraction, based on melting and product analysis %									CEC(%) max
Steel Grade	C	Si	Mn	P	S	V	Nb	Ti	Other	CEIIW	CEPcm
L245M or BM	0.22	0.45	1.20	0.025	0.015	0.05	0.05	0.04	–	0.43	0.25
L290M or X42M	0.22	0.45	1.30	0.025	0.015	0.05	0.05	0.04	–	0.43	0.25
L320M or X46M	0.22	0.45	1.30	0.025	0.015	0.05	0.05	0.04	–	0.43	0.25
L360M or X52M	0.22	0.45	1.40	0.025	0.015	–	–	–	–	0.43	0.25
L390M or X56M	0.22	0.45	1.40	0.025	0.015	–	–	–	–	0.43	0.25
L415M or X60M	0.12	0.45	1.60	0.025	0.015	–	–	–	–	0.43	0.25
L450M or X65M	0.12	0.45	1.60	0.025	0.015	–	–	–	–	0.43	0.25
L485M or X70M	0.12	0.45	1.70	0.025	0.015	–	–	–	–	0.43	0.25
L555M or X80M	0.12	0.45	1.85	0.025	0.015	–	–	–	–	0.43	0.25
L625M or X90M	0.10	0.55	2.10	0.020	0.010	–	–	–	–	–	0.25
L690M or X100M	0.10	0.55	2.10	0.020	0.010	–	–	–	–	–	0.25
L830M or X120M	0.10	0.55	2.10	0.020	0.010	–	–	–	–	–	0.25

LINE PIPE COATINGS

- Fusion Bonded Epoxy (FBE) Coating

FBE has excellent adhesion to the pipeline surface, good corrosion resistance to chemical media, good temperature resistance, excellent corrosion resistance, cathodic peel resistance, aging resistance, and resistance to soil stress, among other properties. It operates over a wide temperature range (standard FBE operates between -30°C and 100°C), making it suitable for most soil environments and directional drilling through clay soils.

- Three Layers Polyethylene (3PE) Coating

Three-layer polyethylene (3PE) anticorrosive coating combines the advantages of epoxy powder FBE and two-layer PE coating to overcome the disadvantages of each anticorrosive process. The primary anticorrosive agent is FBE. PE is primarily used to protect FBE from mechanical damage and has a high resistance to water penetration. The three-layer polyethylene coating system provides superior mechanical properties that match the coating material’s properties, and the coating can withstand temperatures of up to 50°C (low density and medium density polyethylene) or 70°C (high density polyethylene).

- Three Layers Polypropylene (3PP) Coating

The three-layer polypropylene anticorrosive coating (3PP) consists of a base layer of epoxy powder, an intermediate layer of binder, and an outer layer of polypropylene (PP) jacket. The 3PP incorporates all the advantages of 3PE and significantly improves its operating temperature performance. 3PP coating is primarily used as an anticorrosive pipeline layer for conveying medium with a high temperature and as a pipeline anticorrosive layer in desert areas with a high surface temperature and a prolonged period of sunshine.

- Epoxy Coal Pitch Anticorrosion Coating

Epoxy Coal Pitch Anticorrosion Coating made of epoxy resin, coal tar asphalt, and filler is reinforced with glass cloth on the surface of the pipeline pipe to form an anti-corrosion layer, which is frequently used to protect the exterior wall of the pipes from corrosion.

- Silicone Anticorrosion Coating

Silicone anticorrosion layer, hard silicon calcium tile insulation layer, galvanized iron wire reinforcement layer, aluminum silicate fiber cloth waterproof layer, steel sleeve, and titanium aluminum alloy and silicone coating surfaces. Silicone resin, ceramic powder, talcum powder, mica powder, aluminum oxide powder, and titanate coating curing are used to create the silicone anticorrosion layer. With anti-corrosion, heat preservation, waterproofing, and external protection capabilities, its silicone anticorrosion layer can withstand temperatures up to 600°C, making it suitable for transporting 550°C high temperature medium insulation pipeline.

- Internal Coating

It is primarily classified into two types according to the transmission medium: one is used to reduce friction between the pipeline transmission medium and the pipeline pipe’s inner wall, referred to as “internal resistance reduction coating.” The drag-reducing inner coating can increase the fluidity of the conveying medium, allowing for the elimination of pressure stations and a decrease in pipeline investment. The other is to prevent the conveying medium from corroding the inner wall of the steel pipe, which requires a layer of anti-corrosion coating referred to as “internal anti-corrosion coating.” Inner coatings that are resistant to corrosion can increase pipeline safety and extend the life of the pipeline. Inner coatings with varying properties are available for use in water delivery and other chemical environments.

FEATURES OF LINE PIPE COATING

Thickness Requirements for Pipeline Anti-corrosion Coating

Nominal Diameter	Epoxy Coating/μm	Adhesive Coating/μm	Min. Thickness of PE Coating
Nominal Diameter	Epoxy Coating/μm	Adhesive Coating/μm	Common (mm)	Enhanced (mm)
DN≤100	≥120	≥170	1.8	2.5
100＜DN≤250			2.0	2.7
250＜DN≤500			2.2	2.9
500＜DN≤850			2.5	3.2
DN≥800			3.0	3.7

- Performance Index of Fused Epoxy Coating

No.	Item	Performance Indicators
1	Adhesion, Classification	≤2
2	Cathode Racking (65℃，48h)/mm	Racking Distance ≤8
3	Cathode Racking (65℃，30d)/mm	Racking Distance ≤15
4	Anti-bending (-20℃，2.5°）	No Crack

- Performance Index of Two-Layer Structure Adhesive

No.	Item	Performance Indicators
1	Density (g/cm²）	0.920 – 0.950
2	Melt Flow Rate (190℃，2.16kg)(g/10min)	≥0.7
3	Vicat Softening (℃）	≥90
4	Brittle Temperature (℃）	≤-50
5	Oxidation Induction Time (200℃）	≥10
6	Moisture Content %	≤0.1
7	Tensile Strength Mpa	≥17
8	Elongation after Fracture %	≥600

- Performance Index of Two-Layer Structure Adhesive

No.	Item		Performance Indicators
1	Tensile Strength	Axial Direction, Mpa	≥20
		Circumferential Direction, Mpa	≥20
		Deviation, %	≤15
2	Elongation after Fracture, %		≥600
3	Indentation Hardness (mm)	23℃	≤0.2
		50℃ or 70℃	≤0.3
4	Endurably Environmental Stress Cracking (F50),h		≥1000