Large diameter square steel pipe 350x350x10 low alloy square pipe
Large diameter square steel pipe 350x350x10 low alloy square pipe
Large diameter square steel pipe 350x350x10 low alloy square pipe
Large diameter square steel pipe 350x350x10 low alloy square pipe
Large diameter square steel pipe 350x350x10 low alloy square pipe
Large diameter square steel pipe 350x350x10 low alloy square pipe
Large diameter square steel pipe 350x350x10 low alloy square pipe
Large diameter square steel pipe 350x350x10 low alloy square pipe
Large diameter square steel pipe 350x350x10 low alloy square pipe
Large diameter square steel pipe 350x350x10 low alloy square pipe
Large diameter square steel pipe 350x350x10 low alloy square pipe
Large diameter square steel pipe 350x350x10 low alloy square pipe
Large diameter square steel pipe 350x350x10 low alloy square pipe
Large diameter square steel pipe 350x350x10 low alloy square pipe
Large diameter square steel pipe 350x350x10 low alloy square pipe
Large diameter square steel pipe 350x350x10 low alloy square pipe
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Large diameter square steel pipe 350x350x10 low alloy square pipe

Name：Square and rectangular steel pipe；
OD: 20*20-200*200 mm ;
Wall Thickness:1.5-30 mm Length 1-12 m;
Packing Export standard packing or according to customers’ requirement ;
Certificate ISO9001:2008;

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  • Description
product name square steel pipe
Hs code 73066100
Usage Mechanical & manufacture, Steel structure,Shipbuilding, Bridging ,Automobile chassis
daimeter SHS: 15*15-400*400mm, RHS: 20*25-400*300mm
thinkness 0.3-40mm
length 2m-12m or as per customers’ requirement
Steel Grade Q195, Q235, Q345, Ss400, S235, S355jr and So on
materials SPHC, Q195,Q215,Q235,Q345,SAE1010,SAE1020, API Standard material, ASTM A53 A,B
standard GB/T 6728, ASTM A500, En 10210, En 10219 and So on
surface treament Oiled, Painted, Galvanized and So on/Black painting/varnished surface,anti-corrosion oil,
processing service Bending, Welding, Punching, Cutting and So on
Pipe end Plain end
Certificate ISO,BV,API
Tolerance: 5%
Delivery Time 25~30days or as per your request
Payment Term Down Payment 30%T/T in advance and Balance 70%T/T before loading or L/C at sight
Transport Package in Bulk, Waterproof Packing and So on
Constituent of the material
Grade C Mn Si S P UTS(MPa) YS(MPa) EI(%)
Q235B 0.12-0.20 0.30-0.70 0.3 0.045 0.045 375-500 235 26
Q345B 0.12-0.20 1.20-1.60 0.20-0.55 ≤0.045 ≤0.045 510-600 345 22
20#(GB) 0.17-0.23 0.38-0.65 0.17-0.37 ≤0.030 ≤0.030 410-550 ≥245 ≥20
Thick wall square &rectangular tube specification table
name of product size wall thickness name of product size wall thickness
square steel pipe 20*20 1.3-2.5 rectangular steel pipe 20*30 1.3-2.75
25*25 1.3-2.75 20*40 1.3-2.75
30*30 1.3-2.75 25*40 1.3-2.75
40*40 1.3-3.75 30*50 1.3-4.75
50*50 1.3-5.75 30*60 1.3-4.75
60*60 1.3-5.75 40*50 1.3-4.75
70*70 1.3-5.75 40*80 1.3-4.75
80*80 1.3-5.75 50*70 1.3-4.75
90*90 1.3-5.75 50*80 1.3-4.75
100*100 1.5-12 60*90 1.3-4.75
120*120 2.5-12 50*100 1.3-5.75
140*140 2.75-16 50*150 1.3-5.75
150*150 3.0-16 60*160 1.3-5.75
160*160 3.0-16 100*150 2.5-16
180*180 3.0-16 100*200 2.5-16
200*200 3.0-16 100*250 2.5-16
250*250 4.75-20 150*300 4.5-16
300*300 4.75-20 200*300 5.5-20
400*400 4.75-20 200*400 5.5-20
500*500 4.75-20 400*600 5.5-20

      

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