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Home » Products » Steel Pipe » Rectangular Tube » ASTM Hollow section hot dipped glavanized steel tube SHS/RHS/square/rectangular gi steel pipe

ASTM Hollow section hot dipped glavanized steel tube SHS/RHS/square/rectangular gi steel pipe

Square tube is a kind of hollow square cross section light thin wall steel tube, also known as steel refrigeration bend section. It is made of Q235 hot rolled or cold rolled strip steel or coil plate as base material by cold bending forming and then by high frequency welding made of square section shape and size of steel. In addition to the thickening of the wall, the corner size and edge flatness of hot rolled extra-thick wall square tube reach or even exceed the level of resistance welding cold forming square tube. Good comprehensive mechanical properties, weldability, cold, hot working and corrosion resistance, with good low temperature toughness
Availability:
Quantity:
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  • SHS/RHS

  • Hongkun

  • 7306610000


H3b5e1485b9494a2eb0c792423375e269j

Outer Diameter
Square pipe: 20*20mm~400*400mm
Rectangular pipe: 20*40mm~300*500mm
Wall Thickness
Square and rectangular pipe: 0.8~20mm
Length
3-12M according to client requirement
Standard
Hollow section: ASTM A500, EN10219, EN10210, JIS3466, GB/T 6728
Material
Gr.A, Gr.B, Gr.C,
S235, S275, S355,
A36, SS400,
Q195, Q235, Q345
Certificate
ISO 9001:2008, BV, CCIC etc
Finish of pipe
Hot dipped galvanized with zinc 220~260g/m2;
Pre-Galvanized with zinc 30~150g/m2
Painted with black/varnish lacquer;
Oil on the surface to prevent rust;
Bare pipe without painting:
Pipe End
Plain end/ Bevel end;
Groove end;
Joint with flange;
Threaded on two ends, one end with coupling, one end with plastic cap
Marking
As per client requirement or mill standard
Painting method: Spray white paint
Packing
OD not less than 273mm: Loose packing,piece by piece.
OD less than 273mm: In hexagonal seaworthy bundles packed by steel strips.
small sizes nested into big sizes.
Applications
Construction / building materials steel pipe
Steel structure
Scaffolding pipe
Fence post steel pipe
Fire protection steel pipe
Greenhouse steel pipe
Low pressure liquid, water, gas, oil, line pipe
Irrigation pipe
Handrail pipe
Techinical
ERW (high - frequency welded)
Trade Term
FOB, CFR, CIF, EXW, FCA
Payment Term
T/T, LC
Delivery Time
15-45 days (based on quantity) after receiving advanced payment by T/T or LC .
Main Market
Southeast Asia, South Asia, Middle East, Europe,
Middle&South America, Africa and Oceania

Square
Hollow Section
(SHS)
WT
(mm)
Rectangular
Hollow Section
(RHS)
WT
(mm)
16*16
0.8-1.5
20*40
0.8-2.0
19*19
0.8-2.0
25*50
0.8-2.0
20*20
0.8-2.0
30*40
0.8-2.0
25*25
0.8-2.0
30*50
0.8-2.0
30*30
0.8-2.0
37*57
0.8-2.0
32*32
0.8-2.0
40*60
0.8-2.0
35*35
0.8-2.0
37*77
0.8-2.0
38*38
0.8-2.0
25*75
1.0-2.0
40*40
0.8-2.0
40*80
1.0-2.2
50*50
0.8-2.0
50*100
1.0-2.2
60*60
1.0-2.2
50*75
1.0-2.2
80*80
1.0-2.2
38*75
1.0-2.2
100*100
1.0-2.3
50*75
1.0-2.2
Production Process

生产过程1

Factory Workshop Show

车间展示1

车间展示2

Product Application

无缝方管应用

Packaging&Shipping

包1

包2

包3

1. Size 200x200 mm and below In hexagonal seaworthy bundles packed by steel strips, With two nylon slings for each bundles

2. above size 200x200 mm in pieces or according to custom opinion

3. 25 tons/container and 5 tons/size for a trial order

4. For 20" container the max length is 5.8m

5. For 40" container the max length is 11.8m



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