Square Tube

welded pipe and square tube .

Square Tubes:

Structural Tubes, also known as hollow sections, are used as a structural element in buildings, bridges and other structures, and in a wide variety of manufactured products. It’s produced in round, square and rectangular shapes in a broad range of sizes and gauges.

Square Tube, similar to round tube, has efficient shape for multiple-axis loading as it has uniform geometry along two or more cross-sectional axes, and thus uniform strength characteristics. This makes it good choice for columns. It also has excellent resistance to torsion.

Square Tube Dimension: 20mm*20mm-1000*1000mm
Rectangular Tube Dimension: 20mm*30mm-600mm*1000mm
Wall Thickness: 2mm-35mm
Length: 6m-12m , or as per customer?s requirements
Steel Grade: Q195, Q235, Q345(16Mn), STKR400/490, A500, ST37/44/52, S235, S275, S355, etc.
Standards:DIN EN10210,EN10219,GB/T3094-2000,ASTM A500,JIS G 3466,GB/T6728-2002
Surface Treatment: anti-rust oil, black painting, galvanizing
Packing: in bundles with steel strips or in bulk as per customer request
Applications: Construction framework, trestle, motorcar cassis,flight terminal framework, shipbuilding, automobile axle pipe, MRT and so on
The mostly used sizes ( for seamless and welded square steel pipe) are as below:
30 * 30 *( 2-4mm) ?? 50 * 50 *( 2-5mm) ?? 80 * 80 *( 3-10mm).
100 * 100 *( 3-16mm) ?? 135 * 135 *( 4-16mm) ?? 140 * 140 *( 4-18mm).
150 * 150 *( 4-20mm) ?? 180 * 180 *( 5-20mm) ?? 220 * 220 *( 6-20mm).
250 * 250 *( 5-25mm) ?? 300 * 150 *( 6-20mm) ?? 300 * 180 *( 8-20mm).
500 * 500 *( 8-25mm) ?? 400 * 400*( 8-22mm) ?? 450 * 450 *( 8-22mm).
300 * 200 *( 6-20mm) ?? 350 * 300 *( 8-22mm) ?? 350 * 350 *( 8-22mm).
400 * 250 *( 8-25mm) ?? 450 * 300 *( 8-25mm) ?? 450 * 480 *( 9-25mm).
500 * 300 *( 8-25mm) ?? 600*400*(8-30mm)
Skype( WhatsApp,Tel, Wechat):+8618330216175
Email:brsteelpipeup@163.com;lbrsteelpipe@aliyun.com
Linkedinï¼?Nathalie Lee
Feel free to contact us if any further questions,we will serve you as soon as possible.

1. OD:40*40-800*800mm
2. WT:4-40mm
3. Length:5.8-11.8m or as the customer's requirement
4. Standard: GB/T3054-2002,GB/T6728-2002,GB/T6725-2002,GB/T3094-2000,JIS G178-2005,JIS G3466,ASTM A500,DIN EN10210,ETC
5. Material:Q195-Q215,Q345,20#,alloy steel,ST37-2,ST42,ST52-3,S235,S355,A500,A106,A53,A36,ETC
6. Productive technology:cold drawn
7. Application:construction industry,steel structure work,shipbuilding,chemical machinery
8. Payment:L/C,T/T
9. Delivery time:15-30 days after receive the deposit
10. MOQ:10 MT
11. Packaging: painting, oil, packed by steel strip into bundles
12. Trade terms: FOB,CIF,CFR.


Packaging: painting, oil, packed by steel strip into bundles.

Material - Carbon Steel
Shape - Square
Color - Silver
Feature - High Strength, Long Life, Premium Quality
Finishing - Polished
Dimensions - 3-3.5inch

Specifications
Size Average Wall Weight
1/2 x 18 gauge 0.049 inches 1.2446 mm 0.2896 lbs/ft 0.43098272 kg/m
1/2 x 16 gauge 0.065 inches 1.6510 mm 0.3642 lbs/ft 0.54200244 kg/m
5/8 x 18 gauge 0.049 inches 1.2446 mm 0.3729 lbs/ft 0.55494978 kg/m
5/8 x 16 gauge 0.065 inches 1.6510 mm 0.4747 lbs/ft 0.70644854 kg/m
3/4 x 20 gauge 0.035 inches 0.8890 mm 0.3343 lbs/ft 0.49750526 kg/m
3/4 x 18 gauge 0.049 inches 1.2446 mm 0.4562 lbs/ft 0.67891684 kg/m
3/4 x 16 gauge 0.065 inches 1.6510 mm 0.5852 lbs/ft 0.87089464 kg/m
3/4 x 11 gauge 0.12 inches 3.0480 mm 0.9497 lbs/ft 1.41334354 kg/m
7/8 x 18 gauge 0.049 inches 1.2446 mm 0.5395 lbs/ft 0.802864478 kg/m
7/8 x 16 gauge 0.065 inches 1.6510 mm 0.6957 lbs/ft 1.0353156948 kg/m
1 x 20 gauge 0.035 inches 0.8890 mm 0.4533 lbs/ft 0.6745847412 kg/m
1 x 18 gauge 0.049 inches 1.2446 mm 0.6228 lbs/ft 0.9268285392 kg/m
1 x 16 gauge 0.065 inches 1.6510 mm 0.8062 lbs/ft 1.1997578168 kg/m
1 x 15 gauge 0.072 inches 1.8288 mm 0.8940 lbs/ft 1.330418616 kg/m
1 x 14 gauge 0.083 inches 2.1082 mm 1.006 lbs/ft 1.497092984 kg/m
1 x 13 gauge 0.095 inches 2.4130 mm 1.126 lbs/ft 1.675672664 kg/m
1 x 12 gauge 0.109 inches 2.7686 mm 1.251 lbs/ft 1.861693164 kg/m
1 x 11 gauge 0.12 inches 3.0480 mm 1.358 lbs/ft 2.020926712 kg/m
1 1/4 x 18 gauge 0.049 inches 1.2446 mm 0.7894 lbs/ft 1.1747566616 kg/m
1 1/4 x 16 gauge 0.065 inches 1.6510 mm 1.010 lbs/ft 1.50304564 kg/m
1 1/4 x 14 gauge 0.083 inches 2.1082 mm 1.288 lbs/ft 1.916755232 kg/m
1 1/4 x 12 gauge 0.090 inches 2.286 mm 1.421 lbs/ft 2.114681044 kg/m
1 1/4 x 11 gauge 0.12 inches 3.0480 mm 1.766 lbs/ft 2.628097624 kg/m
1 1/4 x 10 gauge 0.135 inches 3.429 mm 2.030 lbs/ft 3.02097292 kg/m
1 1/4 x 3/16 inches 0.188 inches 4.7752 mm 2.400 lbs/ft 3.5715936 kg/m

Q235 Q195

25X25 TO 40X40

Laksteel Square Tubes (galvanized & black iorn)

Size - Thikness
(mm) (mm)
20 x 20
25 x 25
32 x 32
40 x 40
50 x 50
65 x 65
75 x 75
100 x 100
125 x 125
150 x 150
0.90 mm
up to
3.00 mm
* Standerd Length 6 m
* Customnized lengths are also accepted

Laksteel Molding Square Tube

Laksteel Molding Square Tube is available in Non colour and colour bonded Hi-tensile, and Soft (G550 and G350) and G.I material. This is for industrial, commercial and, domestic applications. Laksteel molding square tube ideally suitable for Aluminium, Partition frames, light weight frames and light weight structure.

Product Specification
Size (mm) 40 x 40
Tensil Strength G550 (Hi-ten) G350 (Soft)
Coating Class AZ 150
Recommended total coated thickness 0.70mm, 0.47mm, 0.40mm and 0.35mm.

Astm a500 erw steel structural tubing

Our capability :
Outside diameter: 10-350 mm .
Thickness: 1.8mm-15.0mm
Steel Grade: Q235B, Q345B, S235JR, S275JR, STK400, STK500.
Standard: BS1139-1990, BS EN39-2001, EN10219, JIS G3444-2004, ASTM A53, ASTM A106 , ASTM A500 . ASTM A513 ,JIS G3452 ,EN10219, EN10217 .
Surface: Hot dipped galvanized, Pregalvanized, Black, Painted


We have two factories , one pipe factory , one pre-galvanizing and processing factory .
we can supply service :
1 cutting in any length . we offer precision cutting on the lengths of pipe with wide range .
2 .beveling : we can apply any type of bevel to any degree required . beveling can applied to the face of any size or diameter of pipe .
3 .threading : threaded pipe can provide an sffective seal for pipes transforting liquids , gases , steam , and hydraulic liquid .
4.grooving ; roll grooving can be done in any style according to industry standard s .
5. hole drilling : drilling cna be done in any style according to the industry standards and customer requests , it can be applied to any position on the pipes .


Manufacturer own two factories: main products : h beam ,round tube , rectangular pipe , ERW conveuer belt pipe, Seamless steel pipe ,Scaffolding pipe ,Square and rectangular pipe ,Hot-dipping and Pre-galvanized steel pipe, and other steel products,angle steel , steel section beams ,