Welded steel pipe classified according to use
Welded steel pipe Classification by use
Welded steel pipe
Welded steel pipe refers to the steel pipe with steel strip or steel plate bending deformation into a circular square shape after welding the surface of the steel pipe with seam welding steel pipe using steel plate or strip steel.
Classification according to application: general welded steel pipe, galvanized welded steel pipe, oxygen blowing welded pipe, wire casing, metric welded steel pipe, roller pipe, deep well pump pipe, automotive pipe, transformer tube, welded thin-walled pipe, welded abnormal pipe and spiral welded pipe
General welded pipe
general Welded steel pipe is used to transport low pressure fluid. It is made of q195a, q215a, Q235A steel. It can also be made with other soft steel which is easily welded. The steel pipe should carry out the test of water pressure, bending, flattening and so on. It has a certain requirement on the surface quality, usually the delivery length is 4-10m. The nominal diameter of millimeter or inch is different from that of the actual. According to the specified wall thickness, the welded pipe has two kinds of ordinary steel pipe and thick steel pipe, and the pipe is divided into two kinds of thread and no thread according
Galvanized steel pipe In order to improve the corrosion resistance of steel pipe, galvanized steel pipe is used. Galvanized steel pipe is divided into hot galvanizing and galvanizing. The galvanizing layer is thick and the cost of zinc plating is low.
Roller tube For belt conveyor roller welding steel pipe, generally made of Q215OQ235AZB and 20 steel, diameter 63.5-219.0mm. For tube bending, the end face should be perpendicular to the center line, and the ellipticity is required. Water pressure and flattening tests are generally carried out.、
Welded thin-Welded steel pipe Mainly used to make furniture, toys, lamps, etc. The current stainless steel strip made of thin-walled tubes are widely used, high-grade furniture, decoration, fence and so on.
Spiral Welded steel pipe The steel strip of low carbon structure or low alloy structure steel is rolled into tube blank at a certain spiral angle (called forming angle), and then welded together. It can be used to produce large diameter steel pipe with narrow strip steel. Spiral welded pipe is mainly used for oil and natural gas pipeline, its specification is expressed by external diameter * wall thickness. The spiral welded pipe has one side welding and two side welding, the welded pipe should ensure the water pressure test, and the tensile strength and cold bending property of the weld should conform to the regulations.
* ERW steel line pipe for oil and gas, coal and mine slurry transmission as per API 5L
*Steel grade:Q195-Q345B, S235JRH,S355JOH
*Size: 1/2” - 24” (21-610)
*Length: as per customer’s requirement
*Ends: beveled/straight cut; plastic or metal ends protectors
*Coating: black painting/ vanish/ 1PE/ 3PE/ FBE
*Packing: bundles or loose
*Shipping:15days for stock and 30-60days for new products
*Main Market: South America/ North America/ Europe/Middle East/ East-south Asia
- Standard: BS, JIS, GB, DIN, ASTM, API, BS 1387, BS EN 10297, BS 4568, BS EN10217, JIS G3454-2007, JIS G3456-2004, JIS G3441, GB/T 3087, DIN EN 10216-1-2004, DIN EN 10217-1-2005, DIN 17175, ASTM A106-2006, ASTM A210-1996, ASTM A199, API 5DP
- Grade: 10#-45#, Cr-Mo alloy, 16Mn, A53-A369, API J55-API P110, ST35-ST52, STB35-STB42, Q195-Q345, 10#, 20#, 45#, 34CrMo4, 16Mn, A53(A,B), API J55, API K55, API N80, API P110, St37, STB42, Q235, Q195, Q215
- Thickness: 1.0 - 14 mm
- Section Shape: Round
- Outer Diameter: 21 - 610 mm
- Place of Origin: Hebei, China (Mainland)
- Secondary Or Not: Non-secondary
- Application: Structure Pipe
- Technique: ERW
- Certification: API
- Surface Treatment: PAINTING
- Special Pipe: API Pipe
- Alloy Or Not: Non-alloy
ATTENTION ATTENTION ATTENTION ATTENTION ATTENTION
1. Low MOQ: We will do our best to make you satisfied.
2.Good Service : We treat clients as friend.
3.Good Quality :We have strict quality control system .Good reputation in the market.
4.Fast & Cheap Delivery: We have big discount from forwarder (Long Contract).
5.Supply Ability: 50000 ton monthly.
1) why you chose us?
Because we have large stocks and we have many long term cooperative manufactures, We can get the lowest ex-factory prices, The price are quite reasonable and it is lower than our commercial peers. We canGuarantee the qualities of our products.
2) Our minimum order quantity:
3) How about the Delivery time?
The steel pipe will be produced since we getting your deposit by T/T or Your original L/C. For normal size, some stocks in our factory now, we can supply once you need.
4) What kind of payment does your company support?
T/T. 100% L/C at sight,Cash, Western Union are all accepted,
5) Do you charge for samples?
According to our company principle, we just charge for samples, you pay for the freight charge
6) Main Market:
Mid East South America,South Asia, Africa, Southeast Asia ,Northern Europe Western Europe etc.
1. More than 10 years of sales experience
2. Product exported more than 150 countries
3. Arrange to produce according yo customer's request
1. AA level customs broker,Faster through
2. 20 years of experience in the freight forwarding company
3. Delivery Detail: 10-20 days
1. Certificate: API, CE, ISO9001.2000.MTC etc
2. Inspection: BV,SGS,others is avaliable.
3. A complete testing system and testing equipments
1. Free sample can be provided
2. Small order is acceptable
3. OEM is acceptable
4. Any third party testing is acceptable