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Wall Welded Square Steel Pipes
origin: Shandong, China (Mainland)
packaging: Thickness Wall Welded Square Steel Pipe1.In bundles 2.Standard export packing 3. According to custom
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The company's production equipment is the present domestic most advanced with three roll mandrel rolling united .With advanced technology, sophisticated production equipment, preferable testing equipment The overall technical equipment reaches the domestic advanced level, the production product has the high rolling precision , the performance is superior, the wall thickness is uniform, the exterior surface is smooth, the specification scope is wide and so on the advantages. Product Description Jinan Xin Jiyuan has two production lines , and we specialized in manufacturing the full size of square tubes and rectangular tubes:20x20-600x600mm,square tubes,20x30-600x800mm rectangular tubes ,for more than 20 years since 1997 . Thickness Wall Welded Square Steel Pipe Product Description: commodity Thickness Wall Welded Square Steel Pipe O.D 20*20-600*600mm/20*30-600*800mm W.T 1.0-35.0mm length 3-12m or according to per request material Q195-Grade B, SS330, SPC, S185 Q215-Grade C,CS Type B, SS330, SPHC Q235---Grade D, SS400, S235JR, S235JO, S235J2 Q345---SS500, ST52, ST37 10#,20#,45#, etc Surface treatment 1, Oiled 2, Galvanized 3, Painting black 4, According to the customers` requirement Test 1.Chemical Component Analysis (C,Si,Mn,S,P) 2.Mechanical Properties (Tensile Strength, Yield Strength, Elongation ) MTC is supplied. 3.Third party inspection: BV,SGS Package 1, Big OD: in bulk 2, Small OD: packed by steel strips 3, Plastic bags 4, According to customer`s requirements Delivery Normally 10-20 days after get deposits or according to quantity Advantage 1.large inventory 2.high quality,low price 3.good after-sales service 4.short delivery time I grade product Ceq(%) Yield Strength Grade 235 345 390 Ceq(%) ≤0.36 ≤0.43 ≤0.45 Note: In order to improve the performance of steel,390 could add the microelement such as V, Nb, Ti, Mo and N etc. Mechanical Property: Yield Strength Grade W.T Yield Strength Tensile Strength (Mpa) Elongation (20°C) Impact Value J (mm) (Mpa) (%) 235 4~12>12~22 ≥235 ≥375 ≥23 ≥27 345 4~12>12~22 ≥345 ≥470 ≥21 ≥27 390 4~12>12~22 ≥390 ≥490 ≥19 ≥27 Surface Qualty: 1.Cold bending section steel surface can not have bubbles,cracks,inclusions and transverse stratification,wrinkle,buckle and so on. Allow slight pit,convex,indentation,scratch and presure into the iron oxide,but is not greater than 10% of nominal wall thickness. 2.Surface defects allowed use grinding method to clear up,but after cleaning the thickness should be no less than minimum allowable thickness. 3.If have special requriements on surface quality of cold bending section steel ,determined by supply and demand. Welding Quality: 1.Welds of cold bending section steel shall not be skip welding,lap welding and burn through. 2.Weld flaw allowed repair welding and grinding,but after welding and griding shold reach requirements specified in this standard. 3. Burrs around welding should be removed, burrs inside seams do not clear up,when have special request determined by supply and demand. Thickness Wall Welded Square Steel Pipe Product Photo Show: Certifications Packaging & Shipping Packaging: Shipping: Application Thickness Wall Welded Square Steel Pipe Product Application: 1. Machinery manufacture: glass machinery, agricultural machinery, textile machinery, papermaking machinery food machinery, electrical equipment, sanitation equipment. 2. Roads and Bridges: railway, aviation, expressway, overpass, road fence, traffic signs. 3. Construction Engineering: steel structure construction, sports venue, three-dimensional garage, exhibition hall. 4. Decoration: wrought iron doors and windows, outdoor advertising, pavilion and vestibule, glass curtain wall. 5. Transportation: automobile manufacture, ship manufacture, container, tricycle, tower crane. Company Information Company Introduction : Our company focuses on the usage, development and research of square and rectangular tubes over the passed 20 years. We purchased three production lines at the cost of over 16 million for expansion of the new factory in 2012, These production lines make full-sizes of square tubes and rectangular tubes: 20x20mm-600x600mm, 20x30mm-600x800mm, Thickness:1.0mm-35.0mm,over 2800 kinds of specifications. Executive standard GB/T912-1989 EN10025-1993 DIN17100-80 ASTM-A106/A500 JISG3466 GB/T3274-1988 EUROPE GERMANY USA JAPAN CHINA Steel grade Q195 Q215A Q215B S185 St33 SS330 Q235B S235JR St37-2 GR.A SS400 Q235C S235JO St37-3 Q345B S355JRH St52-2 GR.B STK 490 Q345C Q390B Q390C S355JOH St52-3 GR.C Q345D S355J2H GR.D Q345E 20# GR.B 45#,20Mn2,27SiMn OD range 20mmX20mm-600x600mm 20mmX30mm-600x800mm Wall Thickness 1.0mm-35.0mm http://www.squarepipes.comWelded Square Steel Tube, Welded Steel Square Pipes, Thickness Wall Welded Square Steel Pipe,