| Product Name |
Carbon seamless steel pipe |
| Size |
ERW OD |
1/2 Inch -26 inch |
| SSAW OD |
219mm-2540mm |
| LSAW OD |
457.2mm-1422.2mm |
| Seamless OD |
21.3MM-710MM |
| ERW Thickness |
1mm-18mm |
| SSAW Thickness |
5.4mm-25.4mm |
| LSAW Thickness |
7.92mm-50.8mm |
| Seamless Thickness |
3-45mm |
| Lengths |
3-20M |
| Steel Material |
GR. B X42 X46 X52 X56 X60 X65 X70 X80, etc |
| Standard |
API 5L PLS 1 & PLS 2, A53,A106,A333,A671,A179,A192,A210,EN10217,EN10219,EN10224,JIS G3444 ETC |
| Usage |
Oil Pipe, Casing Tube, Line Pipe and Fluid (Water, Gas) Transmission, Boiler Pipe |
| Surface |
Bared Black Painting, Anti-Corrosion Coating,Galvanized etc |
| Proctor |
Plastic cap |
| Package |
Bundles, Bulk,sea worthy wooden case packing or pr your requirement |
| Inspection |
With Hydraulic Testing, Ultrasonic testing or X-ray Test |
| Certificate |
API and ISO9001; 2000 |
| Date of Delivery |
Less Than 15/20/25/30/40/50/60 Days According To The Quantity |
| Payment: |
L/C or T/T |
| Port of Shipment |
Tianjin, China |
Steel Grade: STKM 11A/12A/12B/13A/13B/13C/14A/14B/14C/15A/15C
Chemical Composition:
| Steel Grade |
C(%) |
Si(%) |
Mn(%) |
P(%) |
S(%) |
| STB 340 |
≤0.18 |
≤0.35 |
0.30~0.60 |
≤0.035 |
≤0.035 |
| STB 410 |
≤0.32 |
≤0.35 |
0.30~0.80 |
≤0.035 |
≤0.035 |
| STB 510 |
≤0.25 |
≤0.35 |
1.00~1.50 |
≤0.035 |
≤0.035 |
Mechanical Properties:
| Steel Grade |
Tensile Strength(N/mm²) |
Yield Strength(N/mm²) |
Elongation(%) |
| OD≥20mm |
OD<20~≥10mm |
OD<10mm |
| STB 340 |
≥340 |
≥175 |
≥35 |
≥30 |
≥27 |
| STB 410 |
≥410 |
≥255 |
≥25 |
≥20 |
≥17 |
| STB 510 |
≥510 |
≥295 |
≥25 |
≥20 |
≥17 |
| DESIGNATION |
SYMBOL |
DESCRIPTION |
| Cold drawn(rolled)-Hard |
+C/BK |
No heat treatment after the final colddrawing. |
| Cold drawn(rolled)-Soft |
+LC/BKW |
After the final heat treatment,there is a suitable drawing pass. |
| Stress relieved after cold draw(rolled) |
+SR/BKS |
After the final cold drawing,there is a stress relief heat treatment in a controlled atmosphere. |
| Annealed |
+A/GBK |
After the final cold drawing,the tubes are annealed in a controlled atmosphere. |
| Normalized |
+N/NBK |
After the final cold drawing,in a controlled atmosphere |
Product processing
Inspection Report
Product application
Packing and transportation
our company
Tianjin Jinxinbao Mental Surface Treatment Co.,LTD .We were founded in 2012, with the headquarters location at the largestwelded pipe production based in china-Yangjiayuan Town,Tianjin city,which is the most professional manufactuer of galvanizedsteel products in this area. There have total 6 galvanized production lines ,about 200 employees and annual productionmore than 200000 tons .
In the 2016, in order to meet client requirements, we built a after-processing factory, whose named is Tianjin Baojing NewEnergy Technology Co.,LTD , which produced all kinds of customized products and sucessful supplyfor many PV projects .
As the export's window, Tianjin Shengteng Internatinal Trading Co.,LTD , manily exporting the factory'sgalvanized steel products, especially galvanized steel pipe ,square and rectangular steel tube, seamless steel pipe,ERW steel pipe, galvanizedsteel 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.
FAQ
Q1:How about the quality?
A:Third party inspections are always welcomed. Like BV, SGS etc.
Q2: How long is the delivery time?
A: Generally about 5-10 days if the goods in stock. Or will be 15-20 days if the goods are not in stock.And also according to the quantity.
Q3:Do you provide samples ? Free or not?
A: Yes, we could offer the sample for free but do not pay the cost of freight.
Q4:May I customize the steel pipe?
A:Sure you can, we can produce according to your requirement, you can send the CAD or design drawing.
Q5:Any value-added Services?
A:Fottunately for you,we are very experience in this industry. We have equipped our warehouse with the necessities to perform in-housepainting,coating,pipe cutting, etc.
Audited Supplier 
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