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Black Steel pipes carbon steel pipe ERW welded manufacturer
black welded steel pipe is our main product, which is produced by electric resistance welding, and the raw material is carbon steel soil or strips.
The main application of erw steel pipe include construction, fluid transport, oil&gas transport, furniture,machinery manufacturing,etc.
Please see below the detailed information of q195 q235 q345 ERW types of mild steel pipe.
Details of carbon steel pipe
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1)O.D.: 20-400mm
2)W.T: 0.5-22mm
3)Length: 0.5-12m
4)Material: Q195, Q215, Q235,Q345
5)Standard: DIN 2440, GB/T3091, ASTM A53, BS1387, enterprise standard
6)Surface: Galvanized/Oiled/Painted
7)Application of erw pipe : used for casing, line pipe for petroleum and natural gas, structural pipe, transferring water, pulp or other fluid and also in chemical industry, building and power engineering
| Classification | Main Products | Executive Standards |
| Steel pipe for fluid service | Welded steel pipe for mine fluid service | GB/T 14291 |
| Welded steel pipe for low pressure fluid service | GB/T 3091 | |
| Spirally submerged arc welded steel pipe for pipelines for low pressure fluid service | SY/T 5037 | |
| Black and hot-dipped galvanized welded and seamless steel pipes | ASTM A53 | |
| Welded steel tubes for pressure purposes-delivery technical conditions-Part 2: Electric welded non-alloy steel tubes with specified elevated temperature properties | BS EN10217-2 | |
| Welded steel tubes for pressure purposes-delivery technical conditions-Part 5: Submerged arc welded non-alloy and alloy steel tubes with specified elevated temperature properties | BS EN10217-5 | |
| Steel Pipe for ordinary structure | Longitudinally electric resistance welded steel pipe | GB/T 13793 |
| Spirally submerged arc welded steel pipe piles | SY/T 5040 | |
| Welded and seamless steel pipe piles | ASTM A252 | |
| Cold formed welded structural hollow sections of non-alloy and fine grain steels-Part1: Technical delivery conditions | BS EN10219-1 | |
| Cold formed welded structural hollow sections of non-alloy and fine grain steels-Part2: Tolerances dimensions and sectional properties | BS EN10219-2 | |
| Line pipe | Steel pipe for pipeline transportation System of Petroleum and natural gas industries (Class A steel pipe) | GB/T 9711.1 |
| Steel pipe for pipeline transportation System of Petroleum and natural gas industries (Class B steel pipe) | GB/T 9711.2 | |
| Line pipe | API Spec 5LPSL1, PSL2 | |
| Casing | Steel pipe for use as casing or tubing for wells of Petroleum and natural gas industries | API 5CT/ISO11960 PSL1 |
Bundles will be the basic packing of welded round steel pipes, but for large diameter, we usually load them by bulk.
Water proof tarpaulin will be use due to the customer's requirments .
TIANJIN HENGFENG UNION STEEL PIPE CO.,LTD IS A GROUP COMPANY LOCATED IN TIANJIN, CHINA.
THE MAIN PRODUCTS ARE ERW PIPE ,STEEL PIPES, GALVANIZED STEEL PIPES, HOLLOW SECTIONS AND STEEL
RELATED PRODUCTS.
THE MAIN MARKET IS ALL OVER THE WORLD, INCLUDING SOUTH&NORTH AMERICA, AFRICA,EAST EUROPE,
ASIA,MID EAST AND AUSTRALIA.
Q:What's the usage of welded round steel pipes?
A:welded round steel pipes is usually used in fluid, oil and gas transportation, construction, structure, furniture, mechinery manufacturing.
Q:Is free sample of erw pipe available?
A: Yes. We can offer free sample, but the transport fee need to be collect.
Q:What is your MOQ?
A:Any quantity is acceptable, and when the quantity is less than 5 tons per size, we'll supply from our stock.
Q:Is 3rd inspection on erw pipe acceptable?
A:Yes. BV,SGS are all acceptable.
Q:Do you attend any exhibition?
A: Yes. We attend exhibition in south america, afrcia, and southeast asia every year.
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