Gi Pipe Welding for Low Pressure Fluids Transmission Service

• Customization: Available
• Type: Welded
• Technique: ERW
• Model NO.: gi pipe welding
• Material: Carbon Steel
• Surface Treatment: Galvanized
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Items: Galvanized Steel Pipes
• Standard: API 5L, ASTM A53, ASTM A106
• Diameter: 1/2"-24"
• Wall Thickness: 1.5mm-20mm
• Finish: Hot Dipped Galvanized
• Ends: Bevelled Ends, Plain Ends, Grooved Ends, Socketed
• Pipe Marking: API 5L / ASTM A53 Size*Length
• Business Type: Manufacturer & Exporter
• Production Type: ERW Welded, Seamless, Spiral
• Certificates: API, UL, FM, Cns
• Transport Package: by Bundle, Water Proof Wrapped
• Specification: OD 1/2 INCH ~ OD 24 INCH
• Trademark: YOUFA
• Origin: Tianjin, China
• HS Code: 7306309000
• Production Capacity: 100, 000 Tons/Month

Product Description

gi pipe welding For Low Pressure Fluids Transmission Service

Product name: Galvanized Steel Pipes
Out diameter: 21.3mm-610mm, 1/2"-24"
Wall Thickness: 1.8mm-20mm, SCH 5S, SCH 10S, SCH10, SCH20, SCH30, SCH40S, STD, SCH40, SCH60, SCH80S, XS, SCH80 etc. 
Length: 1m-24m

Standard: API 5L, API 5CT, ASTM A53, ASTM A252, ASTM A500, ASTM A795, BS1387, BS1139, EN10255, EN10219, EN10217, EN39, DIN2440/2444, ISO3183, ISO11960, JISG3444, JISG3454 etc. 
Quality grade: First class, prime, newly produced, secondary, stock etc. 

Material/steel grade: 
A, B, X42, X46, X52, X56, X60, X65, X70, L175, L175P, L210, L245, L290, L320, L360, L390, L415, L450, L485, BR, X42R, BN, X42N, X46N, X52N, X56N, X60N, BM, X42M, X46M, X52M, X56M, X60M, X65M, X70M, X80M, X90M, X100M, L245N, L290N, L320N, L360N, L390N, L415N, L245M, L290M, L320M, L360M, L390M, L415M, L450M, L485M, L555M, L625M, L690M, H40, J55, K55, M65, L80, C95, N80, Q125, S235GT, S195T, Grade 1, Grade 2, Grade 3, ST33-2, St33, St37, St42, St34-2, St37-2, St42-2, St52-3, P195, P235, P265, S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355K2H, S275NH, S275NLH, S355NH, S355NLH, S460NH, S460NLH, S275MH, S275MLH, S355MH, S355MLH, S420MH, S420MLH, S460MH, S460MLH, STK290, STK400, STK490, STK500, STK540, STPG370, STPG410 etc. 

End: Plain end, beveled, cut square, grooved, threaded and coupling, etc. 
Finish: Bare, varnished, black lacquer, Bitumen Coating, zinc coating, anti-corrosion coating, 3PE, FBE, Epoxy, Cement Mortar, as per customer's requirement

Packing: Small sizes packed by steel strips into bundles, big sizes in loose pieces; Can be packed as customers' special requirements

Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test. 
Mill Test CertificateEN 10204/3.1B

Application-: Line pipe for use in pipeline transportation systems in the petroleum and natural gas industries
- for use as casing and tubing for wells, screwed and socketed steel tubes and tubulars and for plain end steel tubes
- suitable for welding or for screwing to BS21 pipe threads, loose steel tubes, scaffolds
- used for the conveyance of fluids as well as for other applications, applies to pipe piles in which the steel cylinder acts as a permanent load-carrying member, or as a shell to form cast-in-place concrete piles
- for welded, riveted, or bolted construction of bridges and buildings, and for general structural purposes
- suitable for nominal pressure 25 for liquids and nominal pressure 10 for air and non-hazardous gases
- pressure purposes
- applies to structural hollow sections
- general structure purpose and pressure service etc.  


 

DN	Diameter	SCH40 (6m/5.8m)		SCH80(6m/5.8m)		SCH160(6m/5.8m)
INCH	(mm)	Wall Thickness (mm)	Unit Weight (kg/piece)	Wall Thickness (mm)	Unit Weight (kg/piece)	Wall Thickness (mm)	Unit Weight (kg/piece)
1/4"	13.7	2.24	3.79	3.02	4.80
3/8"	17.1	2.31	5.04	3.20	6.60
1/2"	21.3	2.77	7.62	3.73	9.72	4.78	11.7
3/4"	26.7	2.87	10.14	3.91	13.2	5.56	17.4
1"	33.4	3.38	15.00	4.55	19.44	6.35	25.44
1-1/4"	42.2	3.56	20.34	4.85	26.82	6.35	33.66
1-1/2"	48.3	3.68	24.30	5.08	32.46	7.14	43.5
2"	60.3	3.91	32.64	5.54	44.88	8.74	66.66
2-1/2"	73.0	5.16	51.78	7.01	68.46	9.53	89.52
3"	88.9	5.49	67.74	7.62	91.62	11.13	128.1
3-1/2"	101.6	5.74	81.42	8.08	111.78
4"	114.3	6.02	96.42	8.56	133.92	13.49	201.24
5"	141.3	6.55	130.62	9.53	185.82	15.88	294.66
6"	168.3	7.11	169.56	10.97	255.36	18.26	405.36
8"	219.1	8.18	255.3	12.70	387.84	23.01	667.62
10"	273.0	9.27	361.86	15.09	576.06	28.58	1033.98
12"	323.8	10.31	478.38	17.48	792.48	33.32	1432.56

API 5L Wall Thickness Tolerance
 

Wall thickness (mm)	Tolerance (mm) (a)
Seamless pipe (b)
WT ≤4.0	+0.6mm -0.5mm
4.0<WT<25mm	+0.150*WT -0.125*WT
WT≥25.0	+3.7mm -3.0mm
welded pipe (c .d )
WT≤5.0mm	±0.5mm
5.0<WT<15mm	±0.5mm*WT
≥15mm	±1.5mm

Galvanized pipe ends could be threaded, screwed and sockeded. it was used for water pipe:




The pipe ends could also be grooved, it was used for fire fighting pipes:




Customized Process type for API ERW / Seamless pipe:

1. Marking : API 5L / ASTM A53 Size * Length

2. Plain ends  / 2" above Bevelled ends /  plastic cap protection 

3. Grooved ends

4. Water proof wrapped /  In break bulk vessel 

Packing & Loading:





Production range details:
 

Main Products	Size	Wall Thickness	Production Lines	Producing Capacity
ERW steel pipe	1/2" -- 8"	1.5mm--10.0mm	13	1,000,000 tons per year
Hot-dipped galvanized  steel pipe	1/2"-8"	1.5mm--10.0mm	18	1,500,000 tons per year
Oil casing pipe,  SSAW steel pipe	219mm-2020mm	5.0mm--28mm	5	150,000 tons per year
Square/rectangular  steel pipe	20x20--400x400mm, 20x40--400x600mm	1.3mm--20mm	10	800,000 tons per year
Hot-dip galvanized  square/rectangular steel pipe	20x20--200x200mm, 20x40--250x150mm	1.5mm--7.5mm	3	250,000 tons per year
Steel-plastic complex  steel pipe	1/2"--12"	1.5mm--10.0mm	9	100,000 tons per year

 

Company's information: 

 

Tianjin Youfa Steel Pipe Group Co. was founded on July 1st,2000,with the headquarters located at the largest steel pipe
production base in China-Daqiuzhuang Village,Tianjin City;

• produced over 15million tons of various steel pipes in 2017;

• The largest welded steel pipe manufacturer in the world, Production and Sales No.1 for 13 consecutive years in China.
• Products exported to over 86 countries and regions,the Top 500 Enterprises in China;

• has formed four production bases in Tianjin City, Tangshan City, Handan City and Shanxi Province;

• Tianjin Youfa International Trade Co., is a subsidiary of YOUFA Steel Pipe Group,located in Tianjin City.Company
• has 55 professional talents. In order to provide personalized service for foreign businessmen, we have opened
• a processing factory of 10,000 square meters;

• Products cover ERW Steel Pipe, Hot Dipped Galvanized Steel Pipe, Square and Rectangular Steel Pipe,Steel Pipe
• of Lining Plastic,Plastic-coated Steel Pipe, Spiral Steel Pipe, Highway Materials.

TOP 500 ENTERPRISES IN CHINA


Certificates: 

Tianjin Youfa Steel Pipe Group Co., have acquired certificates of API 5L/5CT, ISO9001, ISO14001, ISO18001,
EN10219, FPC and UL / FM quality system.





 I take part the exhibition in all over the world:


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TIANJIN YOUFA STEEL PIPE GROUP
TIANJIN YOUFA INTERNATIONAL TRADE CO.,LTD
Address: Daqiuzhang Town,Jinghai Distr.,Tianjin City, China 300120