THE MOST COMPREHENSIVE KNOWLEDGE OF ERW

- Feb 08, 2021-

ERW has the characteristics of high production efficiency. low cost, material saving and easy automationThe production process is: slitting-uncoiling-strip leveling-head and tail shear-strip butt welding-loop storage-forming-welding-removing bursizi detection-flyina cutting-initial inspection-steel pipe straightening-Pipe section processing-hydraulic test-law detection-printing and coatina-finished product.The main factors that affect the longitudinal electric resistance welded steel pipe: input heat, weldina pressure, welding speed. opening angle, placement p of resistance, etc.It is widely used in water supply and drainage engineering, petroleum and natural qas engineering, and can also be used as piling pipes and bridges,; pi docks, roads, and building structures.


Products Description
Technique
Longitudinal Electronic Resistance Welding(ERW)
Material Quality
Steel Grade
Q195 similar to a283GR.B, 040a10, ss330, sphc
Q235 similar to a283 GR.D, 080a15, CS typeB
Q345 similar to a737 GR.B, SS400, S235JR, SKT500
Material Type 
Available in cold rolled and hot rolled
Size
W.T
0.8mm-12mm
Diameter
20mm*20mm——500mm*500mm
Length
3m-12m or as the order
Surface
Galvanized, 3LPE, 3PE, Painting, Coating oil, Steel stamp, Drilling, etc
Ends
Plain ends, Cutting, Threading, Beveled, Flange, etc
Packing
Paking in bundle with steel strips; with seaworthy pachage at the end; Covered with plastic sheet. Or could be done with your requirement.
Inspection
With Chemic Composition and Mechanical Properties Testing; Hydrostatic Test, Dimensional and Visual Inspection, With Nondestructive inspection
Certification
BV, IAF, SGS, COC, ISO or as per customer
Application
Urban/civil construction pipe, machine structure pipe, agriculture equipment pipe, water and gas transport pipe, Greenhouse pipe, Scaffolding pipe, Building material tube, Furniyure tube, Low pressure fluid tube, Oil pipe, etc
Trade Terms
FOB, CFR, CIF, EXW,  etc
Payment
L/C, D/A, D/P, T/P Western Union, MoneyGram acceptable, T/T preferred
Delivery Time
Usually within 10-30 days after receipt of deposit ASAP
Loading Port
Xingang, Tianjin,China
Cooperation
MSK, CMA, MSC, HMM, COSCO, UA, NYK, OOCL, HPL, YML, MOL
Manufacturing Process
Product Display
Product Application
Product Application:
1. Fence, greenhouse, door pipe
2. Low pressure liquid, water, gas, oil, line pipe
3. For both indoor and outdoor the building construction
4. Widely used in scaffolding construction which is much cheaper and convenient

Our Products are widely used in tap water engineering, petrochemical industry, chemical industry, power industry, agricultural irrigation, urban construction etc. Can be used as low pressure fluid pipe, oil & gas transportion pipe, steel structre, beam etc.
Our annealed steel pipe are wildely used in steel furnitures, bicycle, sports equipments, fitness equioments etc

Packing & Delivery
1,Usaually bundles by steel strips.                                                        2,Bundles with plastic film.
3,Black painting                                                                                        4,Inputing plastic cap
5,Standard exporting package                                                               6,As customers’ request
Certification
Company Profie
Tianjin Zhaolida Steel Pipe Company is located at the larget steel pipe manufacturing base-Daqiuzhuang, Tianjin city, China.  The company covers an area more than 400,000 square meters with a total investment of 500million yuan. There are total 600 employees, in addition 6 branch companies.
On Feb,2002, we set up ‘ Tianjin XinHao Steel Pipe Co.,Ltd ’.
On Feb,2004, we set up ‘ Tianjin HuaYuXin Steel Pipe Co.,Ltd ’.
On Jun,2006, we set up ‘ Tianjin HaoDa Steel Pipe Co.,Ltd ’.
On Aug,2009, we set up ‘ Tianjin Zhaolida Steel Pipe Co.,Ltd ’.
On Jun,2010, we set up ‘ Tianjin WeiHaoDe Steel Pipe Co.,Ltd ’.
On Sep,2011, we set up ‘ Tianjin Helon International Trading Co.,Ltd ’.
We have 16 large precision producing line whose annual output could reach to 800 thousand tons. Our production include ERW Pipe, SSAW Pipe, Line Pipe, Square Pipe, Hot Dip Galvanized Pipe, Pre-Galvanized Pipe, Scaffolding Pipe and so on. The standard we can produce include BS1387, ASTM A53, DIN2440-2444, ISO 65, EN10219, ASTM A500, API 5L, EN39, BS1139 and so on. And these products widely used in water heating, structure, greenhouse, conduit, petroleum,natural gas and so on. Our products have been sold throughout 28 provinces, cities, autonomous regions in domestic; America, Europe, Africa,Oceania, Middle East, Southeast Asia and other international markets.