Tianjin, China
Business Range:
Construction & Decoration, Metallurgy, Mineral & Energy
Registered Capital:
20000000 RMB
Main Markets:
South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia
Terms of Payment:
International Commercial Terms(Incoterms):
OEM/ODM Service
Sample Available

Seamless Pipe, Galvanized Seamless Steel Pipe, Carbon Seamless Steel Pipe manufacturer / supplier in China, offering API 5L Gr. B Carbon Steel Round Shape Seamless, Shengteng Brand Carbon Steel Pipe, Shengteng Brand Scaffolding Poles Suspended Offshore Oil Gas Rigging Galvanized Steel Pipe and so on.

Diamond Member Since 2018
Audited Supplier

API 5L Gr. B Carbon Steel Round Shape Seamless

Get Latest Price
Min. Order / Reference FOB Price
1 Ton US $600-800/ Ton
Port: Tianjin, China
Production Capacity: 10000t/Months
Payment Terms: L/C, T/T
Type: Seamless
Technique: Hot Rolled
Material: Carbon Steel
Surface Treatment: Black
Usage: Pipeline Transport, Boiler Pipe, Construction & Decoration
Section Shape: Round

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Basic Info

Factory Standard
Transport Package
PVC Packing
Thickness: 1.2-12mm Outer Diameter: 1/4in-12in

Product description

1. Grade: Carbon steel and alloy steel
2. Size: 10*1-810*25

3. Standard: DIN, BS,EN,ASTM,JIS, GB

4. Certification: ISO9001, SGS, API 5L, API 5CT,TS16949,

Product Name
Seamless steel pipe
Carbon steel and alloy steel
A213,ASTM A335,ASTM A519,ASTM A556, DIN2391-2, DIN1629,DIN2448,
DIN17175,DIN17176, BS3059,BS6323,BS3602-2, DIN2445-2,EN10305-1,
Carbon steel grades like A53 Gr.B, A106 Gr.A,B,C, A210 Gr.A1,Gr.C, SAE1010,SAe1020,SAE1026,SAE1045,SAE1518,SAE1541,ST35,ST45
ST35.8,ST45.8,P195GH,P235GH, API 5L Gr.B,X42,X52,X56,etc, and
alloy steel grades like T5,T9,T11,T12,T22,T23,T91, P1,P2,P5,P9,P11,P12, P22,P91,P92, 25CrMo4,34CrMo4,42CrMo4SAE4130,SAE4140,SAE4145,SAE4340,etc
Size range
OD:1/4in-12in  Thickness:sch40-80
Manufacture method
Cold drawn, cold rolled, hydraulic cold drawn, Hot rolled, hot expanded
,Depp hole drilling
Delivery condition
As rolled,Stress relieved,Annealed,Normalized,Quenched+Tempered
End finish
Plain ends with suqare cuts, bevelled ends, threaded ends
Pressure vessels,Fluid conveyance,Structural use,Machinery,Oil&gas transportation,Exploration&Drilling,etc.
Typies of tube
Boiler tube,precision tube,mechanical tubing,cylinder tube,line pipes,etc.

Chemical composition of Materials
Steel GradeCSiMnP≤S≤Cu≤Ni≤Cr≤Mo≤V≤
ASTM A106 B≤0.3/≤


Our company is the joint of trade and industry, providing high quality products with rational prices.
API 5L Gr. B Carbon Steel Round Shape Seamless

 Inspection Equiement

Competent testing instruments and quality check equipment offer reliable technical support and 
guarantee for the quality of its products
API 5L Gr. B Carbon Steel Round Shape Seamless


Packaging & Shipping

ASTM A333 Factory Supply 34mm seamless steel pipe tube Large Diameter astm a335 p11 seamless steel pipe

1.  Material  ASTM A333 GR1, GR3, GR4, GR6, GR7, GR8. GR9, GR10, GR11, Hot Rolled Seamless steel pipes

2.  OD: 6MM-400MM

3.  WT: 0.5MM-60MM     

4. Length: 5 meters- 12000 meters        

5. Heat treatment:  Quenched and tempered ; Double Normalized and Tempered; Normalized

6. Cut to order and cut to size, any size is available 

our company
Tianjin Jinxinbao Mental Surface Treatment Co.,LTD .We were founded in 2012, with the headquarters
location at the
largest welded pipe production based in china-Yangjiayuan Town,Tianjin city,which is the most
professional manufactuer
of galvanized steel products in this area. There have total 6 galvanized production lines ,about 200
employees and annual
production more than 200000 tons .
In the 2016, in order to meet client requirements, we built a after-processing factory, whose named
is Tianjin Baojing
New Energy Technology Co.,LTD , which produced all kinds of customized products and sucessful
supply for many PV
projects .
As the export's window, Tianjin Shengteng Internatinal Trading Co.,LTD , manily exporting the
factory's galvanized steel
products, especially galvanized steel pipe ,square and rectangular steel tube, seamless steel pipe ,
ERW steel pipe, galvanized
steel coil/sheets ,scaffolding steel props, PV mounting system .
In the past ,we get good feedback from old clients, and we will more fouce on the quality and improve
the service to
thankful each client in the future.

API 5L Gr. B Carbon Steel Round Shape Seamless

1. Q: I haven't done business with you guys before,how can I trust your company?
A: Our company has been in Alibaba.com for 11 years, which is longer than most  of our fellow
suppliers, we've been
golden suppliers foryears. What's more, we've got quite a lot authority certificates, for example,
BV, ISO9001, API, Alibaba onsite check
certificate. I  hopethose above will be persuasive enough.

2. Q: What is the minimum order?
A: Yes, our company mainly deals with wholesale deals, but if you insist buying one piece, or you
just need one piece,
we would be very
likely to make the MOQ as 1 piece for you though.

3. Q: How can I get a sample to check your quality? How long can I get the sample?
A: After price confirmed, FREE SAMPLE could be provided for your evaluation. After you confirm
the sample details,
the samples will be
ready for delivery in 3-7days,  and will be sent to you via express and arrive in 3-5days.

4. Q: What payment methods your company accept?
A: We accept T/T, L/C, Western Union.

5. Q: What's the shipment terms and delivery time of your company?
A: 20-30 days for bulk, 5-10 working days for inventory

6. Q: Do you give any discount ?

A: We'll surely try our best to help you get those by the best price and good service at the same time.

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