Product Name: Black Square Hollow Section Carbon Steel Pipe, Galvanized Steel Pipe Model NO.: tyt004 Section Shape: Rectangular Usage: Pipeline Transport, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Construction & Decoration, Special Purpose, Non-Alloy Surface Treatment: Black Material: Carbon Steel Technique: ERW Type: Welded Wall Thickness: 0.5 - 13.0 mm Size: 80 X 40X 0.8mm X 6m Trademark: TYT Transport Package: in Bulk Specification: Outer Diameter: 40mm Origin: Tianjin, China HS Code: 7306610000 Product Description Black Square Hollow Section Carbon Steel Pipe Per Meter PriceI.ProductBasic Info:Item NameBlackSquare PipeSize10*10-600*600mm,WT:0.3-30mm,Length:fixed or random,as customer requestMaterialQ195-235,Q195,Q235,Q345SurfaceBlack bared ,can be galvanized,oiled,painted,powdered...EndsPlainPackingIn bundleShipmentUse length≤5.8m by 20`GP,6m-12m by 40`GP,some sizes with 6m length can be into 20`GP.MOQ5tons for normal size and materialLead timeWithin 7 days from stock with 6m length,20-25days for customized pipe according to the qtyLoading portTianjin,ChinaTrade termsFOB,C&F,CIF,EXWPayment termsTT deposit+BL copy/LC or 100%LC at sight2.Product Chemical Composition&Mechanical Properties: GradeChemical CompositionMechanical PropertiesCMnSiSPYieldTensileElongatiStrength MpaStrenth Mpa-on %Q1950.06-0.120.25-0.50≤0.30≤0.045≤0.05≥195315-430≥33Q2150.09-0.150.25-0.55≤0.30≤0.05≤0.045≥217335-450≥27Q2350.12-0.200.30-0.67≤0.30≤0.045≤0.04≥235375-500≥26Q345≤0.201.00-1.60≤0.55≤0.04≤0.04≥345470-630≥22All items of our products and related tests as follow :1.ERW black round pipe (ASTM A53,GB..)2.Weld black square/rectangular pipe(ASTM A500,GB,...)3.Hot dip galvanized round pipe (BS 1387,ASTM A53,GB ,...)4.Hot dip galvanized square/rectangular pipe(ASTM A500,GB...)5.Pre-galvanized square/rectangular/round pipe,cold rolled black annealed or bright finished pipe.6.Spiral steel pipe7.Seamless pipe (ASTM A53,A106B,)8.Oval pipe in galvanized and black surface9.LTZ... special sizes pipe10.Steel prop , steel plank,steel scaffolding pipe and accessories... steel constrctution material11.Steel angle, Flat bar,round bar,sqaure bar,12.H,I,U,C,T,Y,W...steel beam/channel13.Deformed steel bar14.Hot rolled& cold rolled steel sheet/coil in black,galvanized,color coated surface.Our services:1.Special design avaliable according to requirements.2.All production processes are under ISO 9001-2008 strictly3.Free sample4.Acceptable for any third party inspection(SGS,BV...)5.OEM is ok.6.Visit factory any time.Looking forward to your kind inquiry!