Manufacturer preferential supply 12 inch carbon seamless steel pipe st37 st52 for api 5l

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Quick Details
API 5L, ASTM A53-2007, ASTM A53M-2007, BS 1387, BS 1139, BS EN 39, GB/T3901, JIS G3452-2004, JIS G3444-2006
Grade Group:
A53-A369, Q195-Q345, ST35-ST52
A106(B,C), Q235, Q345, Q195, Q215, St37, ST35
2.5 - 15 mm
Section Shape:
Outer Diameter(Round):
21.3 - 406 mm
Place of Origin:
Tianjin, China
Fluid Pipe
Surface Treatment:
Black Pipe / Primer painted / 3LPE / Galvanized / As requirement
Special Pipe:
Thick Wall Pipe
Alloy Or Not:
Secondary Or Not:
Brand Name:
Black Galvanized Coated
Sea-worthy Package
Payment terms:
Warranty period:
within 90 days after receiving the cargo
Supply Ability
Supply Ability:
50000 Ton/Tons per Month
Packaging & Delivery
Packaging Details
1.steel strips in bundle
2. plastic wrapped clothes

1. 100% after-sales quality assurance.

2. Outside Diameter: 1/2 inch to 24 inches.

3. Standard: API 5L / ASTM A53 / ASTM A106 , 20#

4. Wall Thickness: SCH 20, SCH 40, STD, SCH 80 to SCH 160 (3mm to 46mm).

5. Length: General 5.8m , 6m, 11.8m , 12m for exporting length. Other length can be specified by customers

6. Surface finished: Black primer painted, red color primer painted, red primer painted, epoxy coated inner, hot-dipped galvanized, anti-rust oiled, 3PE ects.

7. Free sample.All other specifications of seamless steel pipes are available according to your requirement (ODM/OEM) ! Factory price you will get from YouFa Group.

Product Description
Manufacturer preferential supply 12 inch carbon seamless steel pipe st37 st52 for api 5l

Products NameSeamless Pipe/Seamless Tube/SMLS Pipe/MS seamless pipe
Surface Treatmentblack varnished, oiled finish,red color
InspectionWith Hydraulic Test, Eddy Current , Infrared Test
CertificationCE,ISO 9001:2008 certification 
payment termsLC OR TT
Packaging detailsas required package
Technic methodHot-rolled, cold rolled, hot expand
Standard and Steel GradeASTM A106 Grade B , ASTM A 53 Grade A, Grade B , API 5L Grade B , GB/T 8162 GB/T 8163 Grade 20#  

Main Application:

1. Construction, building materials, steel post, Liquid/middle or low pressure gas delivering, water transfer/pump;

2. Fire Hydrant System according to standard, Machinery parts according to structural standard;


 Pipe ends treatment:   


1) beveled ends with PVC caps

2) threaded ends with coupling and one end is with PVC caps

3) plain ends with PVC caps

4)  scoked, swaged ends

5) extended ends

6) perforated holes

7) welded steel ring outside pipe ends

8) weld steel plates


Why Choose Us?

 Why choose us ?                                                          


Hot sale
Contact us


Certification & Test



Company Information

 Company & Three major producing areas                                                   

        TianJin YouFa Steel Pipe Group Company was founded on july 1st , 2000, with the headquarters located at the largest steel pipe production base in China-Daqiuzhuang Village, Tianjin City, and it is the largest steel pipe manufacturing enterprise producing many kinds of steel pipes in the world. 20 years focused on quality which is the life of the enterprise.

        YouFa brand steel pipes have been successfully applied to Three George Project, Pudong International Airport, Capital International Airport, Beijing Olympic Stadium, Shanghai World Expo Exhibition Hall,Jiaozhou Bay Cross-sea Bridge, the tallest building in China-117 Building in Tianjin, Tian'anmen Parade Reviewing Stand, Shanghai Disneyland Park and other national priority projects.YouFa has been recognized as No.1 brand in the industry.



Customer & Exhibition cooperation:

 Favorable Comment

        Best steel pipe for liquid or oil or gas transfer/construction fastener Plastic plugs in both ends.Two tags on each bundle/Wrapped in waterproof paper/PVC sleeve according to customer ' s requirement.


Packaging & Shipping

Q: Are you trading company or manufacturer?

A: Factory!we are Youfa Group with 3 production area (Tianjin, Tangshang, Handan) in China.

Q: Can I have a trial order only for several tons?

A: Of course! We can ship the cargo for you with LCL service(Less container load).

Q: How long is your delivery time?

A: Generally it is 3-5 days if goods are in stock. Or it is 30 days if the goods are not in stock, it is according to your quantity.

Q: Do you provide samples? Is it free or extra?

A: Yes, We could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment?

A: OR, TT, L/C(For big order,30-90 days can be acceptable).

Q: Are you gold supplier and do trade assurance?

A: Definitely!

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