HomePipe/ TubeStainless Steel Welded Pipes / Tubes
Stainless steel welded pipe 01
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Stainless steel welded pipe 01
Stainless steel welded pipe 02
Stainless steel welded pipe 03
Stainless steel welded pipe 04

Stainless Steel Welded Pipes / Tubes

Stainless Steel Welded Pipes/Tubes provide exceptional strength and structural integrity while maintaining a clean, polished appearance. Their excellent resistance to rust, stains, and weathering makes them ideal for both indoor and outdoor applications. Commonly used in architecture, luxury yachts, food processing, and chemical industries, stainless steel welded pipes deliver superior performance, sanitation, and durability.

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Properties of Stainless Steel Welded Pipe/Tube

Durability

Stainless Steel Welded Pipes/Tubes are designed for long-term strength and reliability. They offer excellent resistance to mechanical stress, high temperatures, and heavy loads while maintaining structural integrity even in demanding environments.

Hygienic Properties

Stainless Steel Welded Pipes/Tubes provide excellent resistance to moisture, and their smooth surfaces can reduce buildup, making them easier to clean and maintain. This characteristic is especially important in hygienically demanding environments such as food processing, medical equipment, and cleanroom systems.

Weather Resistance

Stainless Steel Welded Pipes/Tubes perform exceptionally well in both indoor and outdoor environments. They resist corrosion caused by rain, humidity, and temperature fluctuations, making them ideal for architectural structures, marine systems, and outdoor infrastructure.

Available Size of Mechanical and Structural Stainless Steel Tubes
Available Size of Industrial Stainless Steel Pipes
Available Size of Stainless Steel Sanitary Tubes
Available Size of Light Gauge Stainless Steel Pipes for Ordinary Piping
Available Size of Stainless Steel Tubes for Boiler and Heat Exchanger
Available Size of Stainless Steel Square Tubes
Available Size of Stainless Steel Rectangular Tubes
Packaging of Stainless Steel Welded Pipe/Tube
Chemical Composition of Stainless Steel Welded Pipe/Tube
Mechanical Property of Stainless Steel Welded Pipe/Tube

Available Size of Mechanical and Structural Stainless Steel Tubes

Steel Grade: 201, 304, 304L, 316, 316L, 409L, 430, etc. Specification: ASTM A554, JIS 3446

 

 

 inch 0.0197 0.0236 0.0276 0.0315 0.354 0.0393 0.0475 0.0490 0.0590 0.0630 0.0650 0.0787 0.0830 0.0980 0.1180 0.1200 0.1772 0.1969 0.2559
inch mm 0.50 0.60 0.70 0.80 0.90 1.00 1.20 1.25 1.50 1.60 1.65 2.00 2.11 2.50 3.00 3.05 4.50 5.00 6.50
5/16 8.00 ● ● ● ● ● ● ●                        
3/8 9.50 ● ● ● ● ● ● ● ● ● ● ●                
1/2 12.70 ● ● ● ● ● ● ● ● ● ● ●                
5/8 15.90 ● ● ● ● ● ● ● ● ● ● ● ●              
3/4 19.00 ● ● ● ● ● ● ● ● ● ● ● ●              
7/8 22.20 ● ● ● ● ● ● ● ● ● ● ● ● ●            
1 25.40 ● ● ● ● ● ● ● ● ● ● ● ● ●            
1-1/8 28.60     ● ● ● ● ● ● ● ● ● ● ●            
1-1/4 31.80     ● ● ● ● ● ● ● ● ● ● ● ● ● ●      
1-3/8 35.00     ● ● ● ● ● ● ● ● ● ● ● ● ● ●      
1-1/2 38.10     ● ● ● ● ● ● ● ● ● ● ● ● ● ●      
1-5/8 41.30         ● ● ● ● ● ● ● ● ● ● ● ●      
1.660 42.16         ● ● ● ● ● ● ● ● ● ● ● ●      
1-6/8 44.50         ● ● ● ● ● ● ● ● ● ● ● ●      
1.900 48.26         ● ● ● ● ● ● ● ● ● ● ● ●      
2 50.80         ● ● ● ● ● ● ● ● ● ● ● ● ● ●  
2-1/4 57.15             ● ● ● ● ● ● ● ● ● ● ● ●  
2-3/8 60.33             ● ● ● ● ● ● ● ● ● ● ● ●  
2-1/2 63.50             ● ● ● ● ● ● ● ● ● ● ● ●  
3 76.20             ● ● ● ● ● ● ● ● ● ● ● ● ●
3-1/2 88.90                 ● ● ● ● ● ● ● ● ● ● ●
4 101.60                 ● ● ● ● ● ● ● ● ● ● ●
4-1/2 114.30                 ● ● ● ● ● ● ● ● ● ● ●
5 127.00                 ● ● ● ● ● ● ● ● ● ● ●
6 152.40                 ● ● ● ● ● ● ● ● ● ● ●
8 203.20                 ● ● ● ● ● ● ● ● ● ● ●

Available Size of Industrial Stainless Steel Pipes

Steel Grade: 201, 304, 304L, 316, 316L, 409L, 430, etc.

Specification: ASTM A312, A778

Nominal Outside Diameter Outside Diameter Wall Thickness
NPS inch mm SCH. 5S SCH. 10S SCH. 40S
8 1/4 13.72 1.24 1.65 2.24
10 3/8 17.15 1.24 1.65 2.31
15 1/2 21.34 1.65 2.11 2.77
20 3/4 26.67 1.65 2.11 2.87
25 1 33.40 1.65 2.77 3.38
32 1-1/4 42.16 1.65 2.77 3.56
40 1-1/2 48.26 1.65 2.77 3.68
50 2 60.33 1.65 2.77 3.91
65 2-1/2 73.03 2.11 3.05 5.16
80 3 88.90 2.11 3.05 5.49
90 3-1/2 101.60 2.11 3.05 5.74
100 4 114.30 2.11 3.05 6.02
125 5 141.30 2.77 3.40 6.55
150 6 168.28 2.77 3.40 7.11
200 8 219.08 2.77 3.76 8.18
250 10 273.05 3.40 4.19 9.27
300 12 323.85 3.96 4.57 9.53

Available Size of Stainless Steel Sanitary Tubes

Steel Grade: 201, 304, 304L, 316, 316L, 409L, 430, etc. Specification: ASTM A270

Wall Thickness

Outside Diamete

 inch 0.0475 0.0490 0.0590 0.6500 0.0787 0.8300 0.1180 0.1200
inch mm 1.20 1.25 1.50 1.65 2.00 2.11 3.00 3.05
1 25.4 ● ● ● ● ● ●    
1-1/4 31.8 ● ● ● ● ● ●    
1-1/2 38.1 ● ● ● ● ● ●    
2 50.8 ● ● ● ● ● ● ● ●
2-1/2 63.5   ● ● ● ● ● ● ●
3 76.2   ● ● ● ● ● ● ●
3-1/2 89.1   ● ● ● ● ● ● ●
4 101.6   ● ● ● ● ● ● ●

Available Size of Light Gauge Stainless Steel Pipes for Ordinary Piping

Steel Grade: 201, 304, 304L, 316, 316L, 409L, 430, etc.

Specification: JIS G3448

Outside Diameter (Su) Outside Diameter (mm) Wall Thickness (mm) Outside Diameter Tolerance (mm) Wall Thickness Tolerance (mm) Length Tolerance
10 12.70 0.80 -0.37-+0.00 ± 0.12 ≥ defined length
13 15.88 0.80 -0.37-+0.00 ± 0.12
20 22.22 1.00 -0.37-+0.00 ± 0.12
25 28.58 1.00 -0.37-+0.00 ± 0.12
30 34.00 1.20 -0.34-+0.34 ± 0.12
40 42.70 1.20 -0.43-+0.43 ± 0.12
50 48.60 1.20 -0.49-+0.49 ± 0.12
60 60.50 1.50 -0.60-+0.60 ± 0.15
75 76.30 1.50 ± 1% ± 0.15
80 89.10 2.00 ± 1% ± 0.30
100 114.30 2.00 ± 1% ± 0.30
125 139.80 2.00 ± 1% ± 0.30
150 165.20 3.00 ± 1% ± 0.40
200 216.30 3.00 ± 1% ± 0.40
250 267.40 3.00 ± 1% ± 0.40
300 318.50 3.00 ± 1% ± 0.40

Available Size of Stainless Steel Tubes for Boiler and Heat Exchanger

Steel Grade: 201, 304, 304L, 316, 316L, 409L, 430, etc. Specification: ASTM A249, ASTM A269, JIS 3463

Wall Thickness (mm)

Outside Diameter (mm)

 1.6 2.0 2.3 2.6 2.9 3.2 3.5 4.0 4.5 5.0
15.9 ● ● ● ● ●          
19.0 ● ● ● ● ●          
21.7 ● ● ● ● ●          
25.4 ● ● ● ● ●          
27.2 ● ● ● ● ●          
31.8 ● ● ● ● ●          
34.0 ● ● ● ● ● ● ●      
38.1 ● ● ● ● ● ● ●      
42.7 ● ● ● ● ● ● ●      
48.6 ● ● ● ● ● ● ●      
50.8 ● ● ● ● ● ● ● ●    
60.3 ● ● ● ● ● ● ● ●    
76.2 ● ● ● ● ● ● ● ●    
88.9   ● ● ● ● ● ● ● ● ●
101.6   ● ● ● ● ● ● ● ● ●
114.3         ● ● ● ● ● ●
139.8         ● ● ● ● ● ●

Available Size of Stainless Steel Square Tubes

Steel Grade: 201, 304, 304L, 316, 316L, 409L, 430, etc. Specification: ASTM A554

Wall Thickness (mm)

Outside Diameter (mm)

 0.7 0.8 0.9 1.0 1.2 1.5 1.6 2.0 2.5 3.0 4.5 6.5
12.7x12.7 ● ● ● ● ● ● ●          
15.0x15.0 ● ● ● ● ● ● ●          
18.0x18.0 ● ● ● ● ● ● ●          
19.0x19.0 ● ● ● ● ● ● ●          
20.0x20.0 ● ● ● ● ● ● ● ● ● ●    
22.2x22.2 ● ● ● ● ● ● ● ● ● ●    
25.4x25.4 ● ● ● ● ● ● ● ● ● ●    
30.0x30.0 ● ● ● ● ● ● ● ● ● ●    
31.8x31.8 ● ● ● ● ● ● ● ● ● ●    
38.1x38.1     ● ● ● ● ● ● ● ● ●  
40.0x40.0     ● ● ● ● ● ● ● ● ●  
44.4x44.4     ● ● ● ● ● ● ● ● ●  
50.0x50.0     ● ● ● ● ● ● ● ● ●  
50.8x50.8           ● ● ● ● ● ● ●
60.0x60.0           ● ● ● ● ● ● ●
63.5x63.5           ● ● ● ● ● ● ●
70.0x70.0           ● ● ● ● ● ● ●
75.0x75.0           ● ● ● ● ● ● ●
76.2x76.2           ● ● ● ● ● ● ●

Available Size of Stainless Steel Rectangular Tubes

Steel Grade: 201, 304, 304L, 316, 316L, 409L, 430, etc. Specification: ASTM A554

Side Length Wall Thickness

inch

 

 mm 0.70 0.08 0.90 1.00 1.20/1.25 1.50 1.60 1.65 2.00 2.50 3.00 3.05 4.00 4.57 5.00 6.00 6.35
- 10x20 ● ● ● ● ● ● ● ●                  
- 12x25     ● ● ● ● ●                    
- 10x (30/40/50)     ● ● ● ● ● ●                  
-

15x (25/30) /

20x30

     ● ● ● ● ● ● ●                
- 20x40     ● ● ● ● ● ● ●                
1x1 1/2 25x38       ● ● ● ● ● ● ● ● ● ● ● ●    
- 25.4x38.1       ● ● ● ● ● ● ● ● ● ● ● ●    
- 25x50       ● ● ● ● ● ● ● ● ● ● ● ●    
- 25.4x50.8       ● ● ● ● ● ● ● ● ● ● ● ●    
- 30x (40/50)       ● ● ● ● ● ● ● ● ●          
1x2

25.4x50.8 /

25x50

       ● ● ● ● ● ● ● ● ●          
- 30x60       ● ● ● ● ● ● ● ● ● ● ● ●    
1x3 25.4x76.2 /25x75         ● ● ● ● ● ● ● ●          
- 20x (60/80)         ● ● ● ● ● ● ● ●          
-

40x60

 

         ● ● ● ● ● ● ● ●          
-  40x80 /
45x75		           ● ● ● ● ● ● ● ● ● ●    
-

45x95 /

50x100

           ● ● ● ● ● ● ● ● ● ● ● ●
- 60x120                 ● ● ● ● ● ● ● ● ●

Packaging of Stainless Steel Welded Pipe/Tube

Surface Protection Bundling and Cushioning Packaging and Securing
Each Stainless Steel Welded Pipe/Tube is individually wrapped in protective materials, such as plastic film or foam wrap, to prevent scratches, dust, and surface abrasion during handling and transportation. Stainless Steel Welded Pipes/Tubes are grouped and bundled using stretch film, strapping, or shrink wrap. Corner guards or padding are often added between tubes/ pipes to prevent movement and impact damage. The packaged Stainless Steel Welded Pipes/Tubes are secured in sturdy steel boxes, wooden crates, or pearl cotton packaging to prevent surface contact and ensure structural stability during loading and international transportation.

Chemical Composition of Stainless Steel Welded Pipe/Tube (For Reference)

Grade UNS Designation Ca (%) Mn (%) P (%) S (%) Si (%) Cr (%) Ni (%) Mo (%)
TP304 S30400 0.080 2.00 0.045 0.030  1.00 18.0-20.0 8.0-11.0 -
TP304L S30403 0.035 2.00 0.045 0.030 1.00 18.0-20.0 8.0-13.0 -
TP316 S31600 0.080 2.00 0.045 0.030 1.00 16.0-18.0 10.0-14.0 2.00-3.00
TP316L S30603 0.035 2.00 0.045 0.030 1.00 16.0-18.0 10.0-14.0 2.00-3.00

Mechanical Property of Stainless Steel Welded Pipe/Tube (For Reference)

Grade UNS Designation Tensile Strength, MIN ksi [MPa] Yield Strength, MIN ksi [MPa]
TP304 S30400 75 [515] 30 [205]
TP304L S30403 70 [485] 25 [170]
TP316 S31600 75 [515] 30 [205]
TP316L S30603 70 [485] 25 [170]

Application of Pipe/ Tube

Architectural Applications

Stainless Steel Welded Pipes/Tubes are widely used in architectural applications such as structural supports, handrails, balustrades, and facade structures. Their sleek, polished finish enhances modern design aesthetics, while their excellent corrosion resistance ensures long-term durability in both indoor and outdoor environments.

Chemical Industry

Stainless Steel Welded Pipes/Tubes provide excellent corrosion resistance, making them ideal for transporting corrosive chemicals without compromising performance. Their welded construction ensures secure connections, enhancing operational safety and system reliability in chemical processing applications.

Food Processing

Stainless Steel Welded Pipes/Tubes are essential materials in the food processing industry for transporting food products and liquids. Their smooth inner surfaces reduce the risk of bacterial buildup and are easy to clean, thereby meeting strict hygiene standards.

Marine Applications

Stainless Steel Welded Pipes/Tubes play a crucial role in handrails, ladders, water systems, and exhaust piping in marine vessels, including ships and luxury yachts. These pipes are specifically selected for their outstanding resistance to saltwater corrosion, high humidity, and harsh marine environments.

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