China Black Steel Square Hollow Sections for Construction

Black Steel Square Hollow Sections For Construction
Details:
We can produce galvanized pipe under the following standards:
ASTM A53,BS1387-1985,GB3091-2001
Square section size:10*10mm-400*400mm
Thickness size :0.8mm-12mm
Length:4M-12M or according to customer's request
Material:Q195, Q215, Q235, Q345
Usage:Be widely used in furniture, building and construction Industry, traffic and communication, and so on.Special design available according to requirement

Shape:round/sqaure/rectangular/ovalor other special section tube OD:20-219.1mm, WT: 1.2-12mm Size:10*10-400*400mm,WT:1.2-12mm Size:10*20-400*600mm, WT:1.2-12mm length:0.3-13m (as customers' request)Surface:Pre-galvanized/Hot Dip Galvanized/Oiled/Painted/Bared , can be dealed as customers'needZinc Coating:50-150g/m2 for Pre- galvanized, more than 200g/m2 for hot dip galvanized.or as clients'needMaterial:Q195/Q215/Q235/Q345/Q195-Q235 ABCDStandard:ASTM-A53/BS 1387-1985/GB/T 3091-2001 for round pipe ASTM A500 /GB/T3094 for square/rectangular pipe Manufacturing TechniqueWeld/Seamless/ ERW/ SSAW/ LSAW / Cold Drawn/ Hot Drawn Ends:Plain /Beveled/ Threaded with sockets coupling and plastic caps/ Necking down/ Expanding neck/ Punching holes

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≥22