Square Tubing-Welded Structural Grade Steel Square Tubing

Shop our high-quality welded structural grade steel square tubing at our factory. Perfect for a wide range of construction and industrial applications.
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PRODUCTS DETAILS

Basic Info.

Usage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration
Section Shape
Square
Transport Package
Bundling
Trademark
PMC
Origin
China

Product Description



 
Square Tubing-Welded Structural Grade Steel Square Tubing

Permanent Steel Manufacturing Co.,Ltd (PMC) is your premium supplier and processor of specialty seamless steel pipe, hollow section,high temperature/low temperature steel pipe & fittings - in multiple product forms, including steel plate, bar, tubular and structural forms. In the past, we have been assiduously surpassing our goals step by step in the carbon steel industry. Over the years, perseverance and ardor in our work helped us to carve out a path of success for us and our venerated clients.With state-of-the-art manufacturing processes, contemporary technologies,and proficient services, we consider: offering finest quality-best in class products-at the most advantageous rates, as our forte. 
 
Square Tubing-Welded Structural Grade Steel Square Tubing 
Square Tubing-Welded Structural Grade Steel Square Tubing
Square Tubing-Welded Structural Grade Steel Square Tubing
 
Square Tubing-Welded Structural Grade Steel Square Tubing
Square Tubing-Welded Structural Grade Steel Square Tubing
Square Tubing-Welded Structural Grade Steel Square Tubing

Hollow section members can be circular, square, or rectangular sections, although other shapes are available, such as elliptical. Hollow section is only composed of structural steel per code.These sections are available with anti rust oil coating from inside & outside to ensure safe delivery to end customers.

Square Tube

Standard

ASTM A500 Grade B,

ASTM A513 (1020-1026)

ASTM A36 (A36)

EN 10210:S235,S355,S235JRH,

S355J2H,S355NH
EN 10219:S235,S355,S235JRH, 

S275J0H, S275J2H, S355J0H, S355J2H

 

Surface conditions:

Hot rolled

Cold rolled

Square Tubing-Welded Structural Grade Steel Square Tubing

Ms Square tube sizes(It can be customized according to customer requirements)

Size by Inch  (diameter) Thickness Sizes by MM  (diameter) Thickness

inch

inch

mm mm 

1/2" x 1/2"

0.065"

16mm×16mm 0.4mm~1.5mm
3/4" x 3/4" 0.049" 18mm×18mm 0.4mm~1.5mm

0.065"

20mm×20mm 0.4mm~3mm

0.083"

22mm×22mm 0.4mm~3mm

0.120"

25mm×25mm 0.6mm~3mm

1" x 1"

0.049"

30mm×30mm 0.6mm~4mm

0.058"

32mm×32mm 0.6mm~4mm

0.065"

34mm×34mm 1mm~2mm

0.072"

35mm×35mm 1mm~4mm

0.083"

38mm×38mm 1mm~4mm

0.095"

40mm×40mm 1mm~4.5mm

0.109"

44mm×44mm 1mm~4.5mm

0.120"

45mm×45mm 1mm~5mm

1 1/8" x 1 1/8"

0.035"

50mm×50mm 1mm~5mm

0.049"

52mm×52mm 1mm~5mm

0.065"

60mm×60mm 1mm~5mm

0.109"

70mm×70mm 2mm~6mm

0.120"

75mm×75mm 2mm~6mm
1 1/4" x 1 1/4"

0.049"

76mm×76mm 2mm~6mm

0.065"

80mm×80mm 2mm~8mm

0.072"

85mm×85mm 2mm~8mm

0.083"

90mm×90mm 2mm~8mm

0.109"

95mm×95mm 2mm~8mm

0.120"

100mm×100mm 2mm~8mm

0.135"

120mm×120mm 4mm~8mm

0.156"

125mm×125mm 4mm~8mm

0.188"

130mm×130mm 4mm~8mm
1 1/2" x 1 1/2"

0.049"

140mm×140mm 6mm~10mm

0.065"

150mm×150mm 6mm~10mm

0.072"

160mm×160mm 6mm~10mm

0.083"

180mm×180mm 6mm~12mm

0.109"

200mm×200mm 6mm~30mm

0.120"

220mm×220mm 6mm~30mm

0.140"

250mm×250mm 6mm~30mm
0.188" 270mm×270mm 6mm~30mm
0.250" 280mm×280mm 6mm~30mm
1 3/4" x 1 3/4" 0.065" 300mm×300mm 8mm~30mm
0.083" 320mm×320mm 8mm~30mm
0.095" 350mm×350mm 8mm~30mm
0.109" 380mm×380mm 8mm~30mm
0.120" 400mm×400mm 8mm~30mm
0.188" 420mm×420mm 10mm~30mm
2" x 2" 0.049" 450mm×450mm 10mm~30mm
0.065" 480mm×480mm 10mm~30mm
0.083" 500mm×500mm 10mm~30mm
0.109" 550mm×550mm 10mm~40mm
0.120" 600mm×600mm 10mm~40mm
0.145" 700mm×700mm 10mm~40mm
0.165" 800mm×800mm 10mm~50mm
0.188" 900mm×900mm 10mm~50mm
0.250" 1000mm×1000mm 10mm~50mm
0.312"    
2 1/4" x 2 1/4" 0.188"    
0.250"    
2 1/2" x 2 1/2" 0.083"    
0.109"    
0.120"    
0.188"    
0.250"    
0.312"    

11

3" x 3"

0.083"

0.120"

0.188"

0.250"

0.312"

0.375"
 3 1/2" x 3 1/2"

0.120"

0.188"

0.250"

0.312"

0.375"

4" x 4"

0.083"

0.120"
0.156"
0.188"

0.250"

0.312"

0.375"

0.500"

 

4 1/2" x 4 1/2"

0.188"

0.250"

0.312"

0.375"

5" x 5"

0.188"

0.250"

0.312"

0.375"

0.500"

6" x 6"

0.188"

0.250"

0.312"

0.375"

0.500"

0.625"

7" x 7"

0.188"

0.250"

0.312"

0.375"

0.500"

0.625"

8" x 8"

0.188"

0.250"

0.312"

0.375"

0.500"

0.625"

9" x 9"

0.188"

0.250"

0.312"

0.375"

0.500"

0.625"

10" x 10"

0.188"

0.250"

0.312"

0.375"

0.500"

0.625"

12" x 12"

0.250"

0.312"

0.375"

0.500"

0.625"

14" x 14"

0.312"

0.375"

0.500"

0.625"

16" x 16"

0.312"

0.375"

0.500"

0.625"

 

Chemical composition of material

Grade element C Mn P S
ASTM A500 Gr.b % 0.05%-0.23% 0.3%-0.6% 0.04% 0.04%

 

Acc.to EN10027/1  Acc.to EN10027/2 C% max (Norminal W.T.(mm) Si% max Mn% max P% max S% max N% max
and IC 10   ≤ 40  
S235JRH 1.0039 0.17 0.20 - 1.40 0.045 0.045 0.009
S275JOH 1.0149 0.20 0.22 - 1.50 0.040 0.040 0.009
S275J2H 1.0138 0.20 0.22 - 1.50 0.035 0.035 -
S355JOH 1.0547 0.22 0.22 0.55 1.60 0.040 0.040 0.009
S355J2H 1.0576 0.22 0.22 0.55 1.60 0.035 0.035 -

 

Mechanical properties of material

Grade Yield Strength Tensile Strength Elongation
A500.Gr.b 46 ksi 58 ksi 23%    
A513.GR.B 72 ksi 87 ksi 10%

 

Norm Yield Strength Tensile Strength Min.elogation Min.percent properties

Acc.to EN10027/1

and IC 10

 

Acc.to EN10027/2 Norminal W.T.mm Norminal W.T.mm Longit. Cross Test temperature°C  Average min.impact value
≤16 >6 >40 <3 ≤3≤65 Norminal W.T.mm
≤65 ≤65 ≤40 >40 >40 ≤65
≤65 ≤40
S253JRH 1.0039 235 225 215 360-510 340-470 26 25 24 23 20 27
S275JOH 1.0149 275 265 255 410-580 410-560 22 21 20 19 0 27
S275J2H 1.0138 275 265 255 430-560 410-560 22 21 20 19 -20 27
S355JOH 1.0547 355 345 335 510-680 490-630 22 21 20 19 0 27
S355J2H 1.0576 355 345 335 510-680 490-630 22 21 20 19 -20 27

 

Equivalent specfications

 

EN 10210-1 

 

NF A 49501 NF A 35501 

 

DIN 17100 DIN 17123/4/5 

 

BS 4360 

 

UNI 7806 

S235JRH E 24-2  St 37.2  Fe 360 B 
S275JOH E 28-3  St 44.3 U  43 C  Fe 430 C 
S275J2H E 28-4  St 44.3 N  43 D  Fe 430 D 
S355JOH E 36-3  St 52.3 U  50 C  Fe 510 C 
S355J2H E 36-4  St 52.3 N  50 D  Fe 510 D 
S275NH St E 285 N 
S275NLH TSt E 285 N  43 EE 
S355NH E 355 R  St E 355 N 
S355NLH  TSt E 355 N  50 EE 
S460NH E 460 R  St E 460 N 
S460NLH TSt E 460 N  55 EE 

- block letter "S" means "STEEL FOR STRUCTURAL APPLICATIONS"
- the next fi gure means the minim. yield value required for wall thickness ≤16 mm
- "J2" means impact test value -20° C min. 27 joule
- block letter "H" means "HOLLOW SECTION".

 

Rectangular Tube:
 

Standard

ASTM A500 Grade B,

ASTM A513 (1020-1026)

ASTM A36 (A36)

EN 10210:S235,S355,S235JRH,

S355J2H,S355NH
EN 10219:S235,S355,S235JRH, 

S275J0H, S275J2H, S355J0H, S355J2H

 

Surface conditions:

Hot rolled

Cold rolled

Square Tubing-Welded Structural Grade Steel Square Tubing

MS Rectangular tube sizes (It can be customized according to customer requirements)

Size by Inch  (diameter) Thickness Sizes by MM  (diameter) Thickness

inch

inch

mm mm

1" x 1/2"

0.065"

10mm×15mm 0.6mm~1.5mm
1" x 3/4"

0.065"

10mm×20mm 0.6mm~1.5mm
0.095" 14mm×21mm 0.6mm~1.5mm
1 1/4" x 3/4" 0.065" 15mm×30mm 0.6mm~1.5mm
1 1/2" x 3/4" 0.065" 15mm×38mm 0.6mm~1.5mm
0.120" 20mm×20mm 0.6mm~2mm

1 1/2" x 1"

0.065"

20mm×30mm 0.6mm~2mm

0.072"

20mm×40mm 0.6mm~2mm

0.083"

20mm×50mm 0.6mm~2mm

0.120"

22mm×35mm 0.6mm~2mm

2" x 1"

0.065"

25mm×40mm 0.9mm~2mm

0.083"

25mm×65mm 0.9mm~3.75mm

0.120"

30mm×20mm 1mm~2mm

0.188"

30mm×40mm 1mm~3.75mm

2" x 1 1/4"

0.065"

30mm×45mm 1mm~3.75mm

0.083"

30mm×50mm 1mm~3.75mm

2" x 1 1/2"

0.083"

30mm×60mm 1mm~4mm

0.120"

40mm×25mm 1mm~4.5mm
2 1/2" x 1 1/2"

0.072"

40mm×50mm 1mm~4.5mm

0.083"

40mm×60mm 1mm~4.5mm

0.120"

40mm×80mm 1mm~5mm

0.148"

40mm×100mm 1mm~5mm

0.188"

50mm×25mm 2mm~5mm

0.250"

50mm×30mm 2mm~5mm
3" x 1"

0.083"

50mm×60mm 2mm~5mm

0.120"

50mm×80mm 2mm~5mm

0.188"

50mm×100mm 2mm~5mm
3" x 1 1/2"

0.083"

60mm×30mm 2mm~6mm

0.120"

60mm×40mm 2mm~6mm

0.188"

60mm×80mm 2mm~6mm
0.250" 70mm×50mm 2mm~6mm

3" x 2"

0.065

80mm×30mm 2mm~8mm

0.083

80mm×40mm 2mm~8mm

0.125

80mm×60mm 2mm~8mm

0.188

80mm×100mm 2mm~8mm

0.250

100mm×50mm 2mm~8mm

3" x 2"

0.083"

120mm×60mm 2.5mm~10mm

0.120"

120mm×80mm 2.5mm~10mm

0.188"

140mm×60mm 2.5mm~10mm

0.250"

140mm×80mm 2.5mm~10mm
0.312" 150mm×100mm 2.5mm~12mm
 

4" x 1 1/2"

0.120"

160mm×80mm 2.5mm~12mm

0.188"

180mm×150mm 2.5mm~12mm
4" x 2"

0.083"

200mm×100mm 4mm~12mm

0.120"

200mm×150mm 4mm~12mm

0.188"

220mm×140mm 4mm~12mm

0.250"

250mm×150mm 6mm~12mm

0.312"

250mm×100mm 6mm~12mm

0.375"

250mm×200mm 6mm~30mm

4" x 2 1/2"

0.188"

300mm×100mm 6mm~30mm

0.250"

300mm×150mm 6mm~30mm
4" x 3"

0.083"

300mm×200mm 6mm~30mm

0.120"

300mm×250mm 6mm~30mm

0.188"

400mm×250mm 8mm~30mm

0.250"

400mm×300mm 8mm~30mm

0.312"

450mm×200mm 8mm~30mm

0.375"

450mm×250mm 8mm~30mm
4 1/2" x 2 1/2"

0.188"

400mm×300mm 8mm~30mm

0.250"

400mm×350mm 8mm~30mm
5" x 2"

0.120"

500mm×200mm 10mm~30mm

0.188"

500mm×250mm 10mm~30mm

0.250"

500mm×300mm 10mm~30mm

0.312"

500mm×350mm 10mm~30mm

0.375"

500mm×400mm 10mm~30mm
5" x 2 1/2"

0.120"

500mm×450mm 10mm~30mm

0.188"

600mm×200mm 10mm~28mm

0.250"

600mm×400mm 10mm~28mm
5" x 3"

0.188"

600mm×500mm 10mm~28mm

0.250"

800mm×400mm 10mm~28mm

0.312"

800mm×600mm 10mm~28mm

0.375"

800mm×700mm 10mm~28mm

0.500"

1000mm×400mm 10mm~28mm

5" x 4"

0.188"

1000mm×500mm 10mm~28mm

0.250"

1000mm×600mm 10mm~28mm

0.312"

1000mm×800mm 10mm~28mm

0.375"

   

6" x 2"

0.120"

   

0.188"

   

0.250"

   

0.312"

   

0.375"

   

6" x 3"

0.120"

0.188"

0.250"

0.312"

0.375"

0.500"

6" x 4"

0.120"

0.188"

0.250"

0.312"

0.375"

0.500"

7" x 3"

0.188"

0.250"

0.312"

0.375"

7" x 4"

0.188"

0.250"

0.312"

0.375"

0.500"

7" x 5"

0.188"

0.250"

0.312"

0.375"

0.500"

8" x 2"

0.188"

0.250"

0.312"

0.375"

8" x 3"

0.188"

0.250"

0.312"

0.375"

0.500"

 

8" x 4"

0.188"

0.250"

0.312"

0.375"

0.500"

8" x 6"

0.188"

0.250"

0.312"

0.375"

0.500"

0.625"

9" x 3"

0.188"

0.250"

0.312"

0.375"

9" x 7"

0.188"

0.250"

0.312"

0.375"

0.500"

0.625"

10" x 2"

0.188"

0.250"

0.312"

0.375"

10" x 3"

0.188"

0.250"

0.312"

0.375"

10" x 4"

0.188"

0.250"

0.312"

0.375"

0.500"

10" x 5"

0.188"

0.250"

0.312"

0.375"

0.500"

10" x 6"

0.188"

0.250"

0.312"

0.375"

0.500"

0.625"

10" x 8"

0.188"

0.250"

0.375"

0.500"

0.625"

12" x 2"

0.188"

0.250"

0.312"

0.375"

12" x 3"

0.188"

0.250"

0.312"

0.375"

12" x 4"

0.188"

0.250"

0.312"

0.375"

0.500"
0.625"
 
12" x 6"

0.188"

0.250"

0.312"

0.375"

0.500"

0.625"

12" x 8"

0.250"

0.312"

0.375"

0.500"

0.625"

12" x 10"

0.250"

14" x 4"

0.250"

0.312"

0.375"

0.500"

14" x 6"

0.250"

0.312"

0.375"

0.500"

14" x 10"

0.250"

0.312"

0.375"

0.500"

0.625"

16"x 4"

0.312"

0.375"

0.500"

16" x 8"

0.250"

0.312"

0.375"

0.500"

16" x 12"

0.312"

0.375"

0.500"
0.625"
 
18" x 6"

0.312"

0.375"

0.500"

20" x 4"

0.312"

0.375"

0.500"

20" x 8"

0.312"

0.375"

0.500"

20" x 12"

0.312"

0.375"

0.500"

0.625"

 
Chemical composition of material
Grade element C Mn P S
ASTM A500 Gr.b % 0.05%-0.23% 0.3%-0.6% 0.04% 0.04%

 

Mechanical properties of material

Grade Yield Strength Tensile Strength Elongation
A500.Gr.b 46 ksi 58 ksi 23%    
A513.GR.B 72 ksi 87 ksi 10%

 

Norm Yield Strength Tensile Strength Min.elogation Min.percent properties

Acc.to EN10027/1

and IC 10

 

Acc.to EN10027/2 Norminal W.T.mm Norminal W.T.mm Longit. Cross Test temperature°C  Average min.impact value
≤16 >6 >40 <3 ≤3≤65 Norminal W.T.mm
≤65 ≤65 ≤40 >40 >40 ≤65
≤65 ≤40
S253JRH 1.0039 235 225 215 360-510 340-470 26 25 24 23 20 27
S275J0H 1.0149 275 265 255 410-580 410-560 22 21 20 19 0 27
S275J2H 1.0138 275 265 255 430-560 410-560 22 21 20 19 -20 27
S355J0H 1.0547 355 345 335 510-680 490-630 22 21 20 19 0 27
S355J2H 1.0576 355 345 335 510-680 490-630 22 21 20 19 -20 27

 

Equivalent specfications

 

EN 10210-1 

 

NF A 49501 NF A 35501 

 

DIN 17100 DIN 17123/4/5 

 

BS 4360 

 

UNI 7806 

S235JRH E 24-2  St 37.2  Fe 360 B 
S275J0H E 28-3  St 44.3 U  43 C  Fe 430 C 
S275J2H E 28-4  St 44.3 N  43 D  Fe 430 D 
S355J0H E 36-3  St 52.3 U  50 C  Fe 510 C 
S355J2H E 36-4  St 52.3 N  50 D  Fe 510 D 
S275NH St E 285 N 
S275NLH TSt E 285 N  43 EE 
S355NH E 355 R  St E 355 N 
S355NLH  TSt E 355 N  50 EE 
S460NH E 460 R  St E 460 N 
S460NLH TSt E 460 N  55 EE 

 

- block letter "S" means "STEEL FOR STRUCTURAL APPLICATIONS"
- the next fi gure means the minim. yield value required for wall thickness ≤16 mm
- "J2" means impact test value -20° C min. 27 jaoule
- block letter "H" means "HOLLOW SECTION".


Square Tubing-Welded Structural Grade Steel Square Tubing
PMC has always inculcated and followed sten quality standards for all of its manufacturing processes. All the materials used by PMC are of premium quality and compatible with latest machineries and manufacturing technologies. The technical and commercial quality guidelines of PMC are set to high standards. A quality control team supervises quality assurance and control aspects along with the entire process system by recognizing and associating with the quality circle. The quality control tests are conducted regularly in order to maintain a consistent and uniform product quality. 

Tests of  Hollow Section:
Chemical Component Analysis
Mechanical Properties - Elongation, Yield Strength, Ultimate Tensile Strength
Technical Properties - DWT Test, Impact Test, Blow Test, Flattening Test
X-ray Test
Exterior Size Inspection
Hydrostatic Test

Square Tubing-Welded Structural Grade Steel Square Tubing


Square Tubing-Welded Structural Grade Steel Square Tubing

FAQ

Q1. What are your company's main products ?

A2: Our main products are carbon steel seamless pipe, welded pipe, hollow section, pipe fittings(flange,elbow, tee, reducer,nipple etc.), and sheets, pipes, coils, strips, bars and channels.

 

Q2. What are the advantages of your company ?

A2: Offering finest quality-best in class products-at the most advantageous rates, as our forte.


Q3. How do you control quality ?
A3:
A quality control team supervises quality assurance and control aspects along with the entire process system by recognizing and associating with the quality circle. The quality control tests are conducted regularly in order to maintain a consistent and uniform product quality.


Q4. How many coutries you already exported ? 

A4: Exported to more than 50 countries mainly from Middle East, Russia, United States, Canada, Italy, Germany, Australia, Egypt, Japan, Indonesia, Bangladesh, Turkey, India, etc.


Q5. Can you provide sample ? Do you support OEM ?

A5: Yes. Small samples in store can be provided for free. Customized samples will take about 2-3days.


Q6: What's your payment terms ?
A6: By T/T(30% deposit in advance, balance 70% before shipment),, L/C after sight 30~120 days. Western Union, Paypal, or Trade Online.


 

Contact us

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