Stainless Steel Round Tube & Pipe

We supply stainless steel round tube in a wide range of sizes, the outside diameter ranging from 6 to 1016 mm, and wall thickness ranging from 0.5 to 50 mm in metric sizes, common stainless steel grades are 304, 304L, 316, 316L, and duplex steel, special steel is available, stainless steel round tube’s resistance to corrosion, staining and rust, making it ideal for many industries and applications including high temperatures and corrosive environments, or mechanical purposes and ornamental purposes.

Stainless Steel Round Tube Specifications

Tube TypeWelded And Seamless Round Tube
Grades304 / 304L, 316 / 316L, 321
SurfaceAnnealing, Bright Annealing, Polishing
Outside Diameter1/8″ – 24″
Thickness0.02 – 0.30 Inch
LengthFixed Length Or Random Length
EndsPlain Ends, Bevelled Ends
ApplicationHeat Exchanger, Water, Oil And Gas, Food, Chemical, Mechanical Purpose

Stainless Steel Characteristics And Benefits

  • Excellent corrosion resistance
  • High strength
  • Heat resistance
  • Good weldability, machinability and formability.
  • Various finishes selection
  • Safe material

Stainless Steel Grades

There are many grades used for round tube, and selecting which type of grade depends on the specific application, different grade has different properties to suit the application, 304 and 316L stainless steels are the most used grades, and they have overall excellent properties to meet the majority of applications.

Stainless steel 304 round tubes provide increased strength and workability and is ideal for structural applications where extreme pressure is not involved or for internal applications where aesthetic appearance is not important. Stainless steel 316 round tubing is seamless in structure and possesses greater durability under pressure, with a higher aesthetic appeal than stainless 304 tubing. Also referred to as surgical stainless steel, 316 round stainless steel tubing is commonly used in the food and pharmacy industry where it is required to minimize metallic contamination. 

Stainless steel equivalent grades.

Seamless Round Tube

Seamless tube is a kind of tube made from a steel bar without any welding joint, generally used in high-pressure conditions, a hot-finished or cold-finished process is available to the seamless tube.

Welded Round Tube

Welded tube is made from stainless steel strip using a variety of welding processes, the major welding methods are TIG, EFW, EFW and HFW, the welded tube is a cost-effective choice compared to seamless tubes and is commonly used for decorative, structural, and architecture applications.

Difference between seamless and welded tube.

Custom Round Tube Sizes

Depending on outside diameter and wall thickness, there are small diameter tubes, large diameter tubes, thin wall thickness tubes and heavy wall thickness tube, round tube sizes chart.

Other size ranges of stainless steel round tubes are as follows, some non-standard dimensions of the tube can be offered as specific applications.

Measurement Of Round Tube

Round tube is usually measured in outside diameter and wall thickness, unlike round pipe, which is measured in inside diameter for transport fluid, tolerance of round tube can be obtained as standard specifications, these standards are employed for special purposes.

Stainless Steel tube and pipe tolerances.

Stainless Steel Round Tube Weight Chart

Besides stainless steel round tubes, we also offer other shapes of stainless steel tubes:

Applications Of Round Tube

  • Mechanical application, round tube is frequently used for mechanical applications, ASTM A554 is a standard specification for welded stainless steel tubing, and ASTM A511 is a standard specification for seamless stainless steel tubing.
  • Heat exchanger, condenser, boiler, and stainless steel round tubes have high strength and excellent corrosion resistance used in heat exchanger systems, common tube sizes are relatively small, ASMT A249 for welded tubes and ASTM A213 for seamless, tubes separately, round tubes can be bent in U type and coiled shape tube.
  • For sanitary purposes, round tubes can be polished in various grits to achieve the desired surface outside or inside, ASTM A270 or 3A standards are used for sanitary tubes, generally applied for the food industry. EN10357 is EN standard for sanitary tubing.

Stainless Steel Round Tube Size Chart and Weight

Round TubeOutside Diameter, mmWall Thickness, mmWeight, kg/m
Stainless Steel Round Tube6  1  0,123  
Stainless Steel Round Tube8  1  0,173  
Stainless Steel Round Tube10  1  0,222  
Stainless Steel Round Tube12  1  0,272  
Stainless Steel Round Tube12  1,5  0,389  
Stainless Steel Round Tube13  1  0,296  
Stainless Steel Round Tube14  1  0,321  
Stainless Steel Round Tube14  1,5  0,463  
Stainless Steel Round Tube14  2  0,593  
Stainless Steel Round Tube15  1  0,346  
Stainless Steel Round Tube15  1,5  0,500  
Stainless Steel Round Tube15  2  0,642  
Stainless Steel Round Tube16  1  0,370  
Stainless Steel Round Tube16  1,2  0,439  
Stainless Steel Round Tube16  1,5  0,537  
Stainless Steel Round Tube16  2  0,691  
Stainless Steel Round Tube17,2  1  0,400  
Stainless Steel Round Tube17,2  1,2  0,474  
Stainless Steel Round Tube17,2  1,5  0,582  
Stainless Steel Round Tube17,2  1,6  0,616  
Stainless Steel Round Tube17,2  2  0,751  
Stainless Steel Round Tube17,2  2,3  0,846  
Stainless Steel Round Tube18  1  0,420  
Stainless Steel Round Tube18  1,2  0,498  
Stainless Steel Round Tube18  1,5  0,611  
Stainless Steel Round Tube18  2  0,790  
Stainless Steel Round Tube19,05  1  0,446  
Stainless Steel Round Tube19,05  1,2  0,529  
Stainless Steel Round Tube19,05  1,5  0,650  
Stainless Steel Round Tube19,05  1,65  0,709  
Stainless Steel Round Tube19,05  2  0,842  
Stainless Steel Round Tube19,05  2,11  0,883  
Stainless Steel Round Tube20  0,8  0,379  
Stainless Steel Round Tube20  1  0,469  
Stainless Steel Round Tube20  1,2  0,557  
Stainless Steel Round Tube20  1,5  0,685  
Stainless Steel Round Tube20  2  0,889  
Stainless Steel Round Tube21,3  1  0,501  
Stainless Steel Round Tube21,3  1,5  0,733  
Stainless Steel Round Tube21,3  1,6  0,778  
Stainless Steel Round Tube21,3  2  0,953  
Stainless Steel Round Tube21,3  2,5  1,161  
Stainless Steel Round Tube21,3  2,6  1,201  
Stainless Steel Round Tube21,3  3  1,356  
Stainless Steel Round Tube22  0,8  0,419  
Stainless Steel Round Tube22  1  0,519  
Stainless Steel Round Tube22  1,2  0,616  
Stainless Steel Round Tube22  1,5  0,759  
Stainless Steel Round Tube22  2  0,988  
Stainless Steel Round Tube23  1,5  0,796  
Stainless Steel Round Tube25  0,8  0,478  
Stainless Steel Round Tube25  1  0,593  
Stainless Steel Round Tube25  1,2  0,705  
Stainless Steel Round Tube25  1,5  0,870  
Stainless Steel Round Tube25  2  1,136  
Stainless Steel Round Tube25  2,5  1,389  
Stainless Steel Round Tube25  3  1,630  
Stainless Steel Round Tube25,4  1  0,603  
Stainless Steel Round Tube25,4  1,2  0,717  
Stainless Steel Round Tube25,4  1,5  0,885  
Stainless Steel Round Tube25,4  1,65  0,968  
Stainless Steel Round Tube25,4  2  1,156  
Stainless Steel Round Tube25,4  2,11  1,213  
Stainless Steel Round Tube25,4  2,5  1,414  
Stainless Steel Round Tube25,4  3  1,659  
Stainless Steel Round Tube26,9  1,2  0,762  
Stainless Steel Round Tube26,9  1,5  0,941  
Stainless Steel Round Tube26,9  1,6  1,000  
Stainless Steel Round Tube26,9  2  1,230  
Stainless Steel Round Tube26,9  2,5  1,506  
Stainless Steel Round Tube26,9  2,6  1,560  
Stainless Steel Round Tube26,9  3  1,770  
Stainless Steel Round Tube28  1  0,667  
Stainless Steel Round Tube28  1,2  0,794  
Stainless Steel Round Tube28  1,5  0,982  
Stainless Steel Round Tube28  2  1,284  
Stainless Steel Round Tube29  1,5  1,019  
Stainless Steel Round Tube30  1  0,716  
Stainless Steel Round Tube30  1,2  0,853  
Stainless Steel Round Tube30  1,5  1,056  
Stainless Steel Round Tube30  2  1,383  
Stainless Steel Round Tube30  2,5  1,698  
Stainless Steel Round Tube30  3  2,000  
Stainless Steel Round Tube32  1  0,765  
Stainless Steel Round Tube32  1,2  0,913  
Stainless Steel Round Tube32  1,5  1,130  
Stainless Steel Round Tube32  1,65  1,237  
Stainless Steel Round Tube32  2  1,482  
Stainless Steel Round Tube32  2,5  1,821  
Stainless Steel Round Tube32  3  2,148  
Stainless Steel Round Tube33  1,5  1,167  
Stainless Steel Round Tube33,7  1  0,807  
Stainless Steel Round Tube33,7  1,2  0,963  
Stainless Steel Round Tube33,7  1,5  1,193  
Stainless Steel Round Tube33,7  1,6  1,268  
Stainless Steel Round Tube33,7  2  1,566  
Stainless Steel Round Tube33,7  2,5  1,926  
Stainless Steel Round Tube33,7  2,6  1,997  
Stainless Steel Round Tube33,7  3  2,274  
Stainless Steel Round Tube33,7  3,2  2,410  
Stainless Steel Round Tube34  1  0,815  
Stainless Steel Round Tube34  1,2  0,972  
Stainless Steel Round Tube34  1,5  1,204  
Stainless Steel Round Tube34  2  1,580  
Stainless Steel Round Tube35  1  0,840  
Stainless Steel Round Tube35  1,2  1,002  
Stainless Steel Round Tube35  1,5  1,241  
Stainless Steel Round Tube35  2  1,630  
Stainless Steel Round Tube35  2,5  2,006  
Stainless Steel Round Tube38,1  1  0,916  
Stainless Steel Round Tube38,1  1,2  1,093  
Stainless Steel Round Tube38,1  1,5  1,356  
Stainless Steel Round Tube38,1  1,65  1,485  
Stainless Steel Round Tube38,1  2  1,783  
Stainless Steel Round Tube38,1  2,11  1,875  
Stainless Steel Round Tube38,1  2,5  2,198  
Stainless Steel Round Tube38,1  2,6  2,279  
Stainless Steel Round Tube38,1  3  2,600  
Stainless Steel Round Tube40  1  0,963  
Stainless Steel Round Tube40  1,2  1,150  
Stainless Steel Round Tube40  1,5  1,426  
Stainless Steel Round Tube40  2  1,877  
Stainless Steel Round Tube40  2,5  2,315  
Stainless Steel Round Tube40  3  2,741  
Stainless Steel Round Tube41  1,5  1,463  
Stainless Steel Round Tube42  1,5  1,500  
Stainless Steel Round Tube42  2  1,975  
Stainless Steel Round Tube42,4  1,2  1,221  
Stainless Steel Round Tube42,4  1,5  1,515  
Stainless Steel Round Tube42,4  1,6  1,612  
Stainless Steel Round Tube42,4  2  1,995  
Stainless Steel Round Tube42,4  2,5  2,463  
Stainless Steel Round Tube42,4  2,6  2,555  
Stainless Steel Round Tube42,4  3  2,919  
Stainless Steel Round Tube42,4  3,2  3,097  
Stainless Steel Round Tube42,4  3,6  3,449  
Stainless Steel Round Tube43  1,5  1,537  
Stainless Steel Round Tube44,5  1,2  1,283  
Stainless Steel Round Tube44,5  1,5  1,593  
Stainless Steel Round Tube44,5  2  2,099  
Stainless Steel Round Tube44,5  2,5  2,593  
Stainless Steel Round Tube44,5  2,6  2,690  
Stainless Steel Round Tube44,5  3  3,074  
Stainless Steel Round Tube45  1,2  1,298  
Stainless Steel Round Tube45  1,5  1,611  
Stainless Steel Round Tube45  2  2,124  
Stainless Steel Round Tube45  2,5  2,624  
Stainless Steel Round Tube48,3  1,2  1,396  
Stainless Steel Round Tube48,3  1,5  1,733  
Stainless Steel Round Tube48,3  1,6  1,845  
Stainless Steel Round Tube48,3  2  2,287  
Stainless Steel Round Tube48,3  2,5  2,827  
Stainless Steel Round Tube48,3  2,6  2,934  
Stainless Steel Round Tube48,3  3  3,356  
Stainless Steel Round Tube48,3  3,2  3,564  
Stainless Steel Round Tube48,3  3,6  3,974  
Stainless Steel Round Tube50  1  1,210  
Stainless Steel Round Tube50  1,2  1,446  
Stainless Steel Round Tube50  1,5  1,796  
Stainless Steel Round Tube50  2  2,371  
Stainless Steel Round Tube50  2,5  2,932  
Stainless Steel Round Tube50  3  3,482  
Stainless Steel Round Tube50,8  1  1,230  
Stainless Steel Round Tube50,8  1,2  1,470  
Stainless Steel Round Tube50,8  1,5  1,826  
Stainless Steel Round Tube50,8  1,65  2,003  
Stainless Steel Round Tube50,8  2  2,410  
Stainless Steel Round Tube50,8  2,11  2,537  
Stainless Steel Round Tube50,8  2,5  2,982  
Stainless Steel Round Tube50,8  2,6  3,095  
Stainless Steel Round Tube50,8  3  3,541  
Stainless Steel Round Tube51  1  1,235  
Stainless Steel Round Tube51  1,2  1,476  
Stainless Steel Round Tube51  1,5  1,833  
Stainless Steel Round Tube51  2  2,420  
Stainless Steel Round Tube52  1  1,259  
Stainless Steel Round Tube52  1,2  1,505  
Stainless Steel Round Tube52  1,5  1,870  
Stainless Steel Round Tube52  2  2,469  
Stainless Steel Round Tube53  1,5  1,908  
Stainless Steel Round Tube54  1,2  1,565  
Stainless Steel Round Tube54  1,5  1,945  
Stainless Steel Round Tube54  2  2,568  
Stainless Steel Round Tube57  1,2  1,653  
Stainless Steel Round Tube57  1,5  2,056  
Stainless Steel Round Tube57  2  2,716  
Stainless Steel Round Tube57  2,5  3,364  
Stainless Steel Round Tube57  3  4,000  
Stainless Steel Round Tube60,3  1,2  1,751  
Stainless Steel Round Tube60,3  1,5  2,178  
Stainless Steel Round Tube60,3  1,6  2,319  
Stainless Steel Round Tube60,3  2  2,879  
Stainless Steel Round Tube60,3  2,5  3,568  
Stainless Steel Round Tube60,3  2,6  3,704  
Stainless Steel Round Tube60,3  3  4,245  
Stainless Steel Round Tube60,3  3,2  4,512  
Stainless Steel Round Tube60,3  3,6  5,040  
Stainless Steel Round Tube60,3  4  5,561  
Stainless Steel Round Tube63,5  1,2  1,846  
Stainless Steel Round Tube63,5  1,5  2,296  
Stainless Steel Round Tube63,5  1,6  2,446  
Stainless Steel Round Tube63,5  2  3,037  
Stainless Steel Round Tube63,5  2,5  3,766  
Stainless Steel Round Tube63,5  2,6  3,910  
Stainless Steel Round Tube63,5  3  4,482  
Stainless Steel Round Tube70  1,2  2,039  
Stainless Steel Round Tube70  1,5  2,537  
Stainless Steel Round Tube70  2  3,358  
Stainless Steel Round Tube70  2,5  4,167  
Stainless Steel Round Tube70  3  4,963  
Stainless Steel Round Tube73  1,5  2,648  
Stainless Steel Round Tube76,1  1,2  2,219  
Stainless Steel Round Tube76,1  1,5  2,763  
Stainless Steel Round Tube76,1  1,6  2,943  
Stainless Steel Round Tube76,1  2  3,659  
Stainless Steel Round Tube76,1  2,5  4,544  
Stainless Steel Round Tube76,1  2,6  4,719  
Stainless Steel Round Tube76,1  3  5,415  
Stainless Steel Round Tube76,1  3,2  5,760  
Stainless Steel Round Tube76,1  3,6  6,445  
Stainless Steel Round Tube76,1  4  7,121  
Stainless Steel Round Tube80  1,2  2,335  
Stainless Steel Round Tube80  1,5  2,908  
Stainless Steel Round Tube80  2  3,852  
Stainless Steel Round Tube80  2,5  4,784  
Stainless Steel Round Tube80  3  5,704  
Stainless Steel Round Tube83  1,5  3,019  
Stainless Steel Round Tube84  2  4,050  
Stainless Steel Round Tube85  1,5  3,093  
Stainless Steel Round Tube85  2  4,099  
Stainless Steel Round Tube88,9  1,2  2,599  
Stainless Steel Round Tube88,9  1,5  3,237  
Stainless Steel Round Tube88,9  1,6  3,449  
Stainless Steel Round Tube88,9  2  4,292  
Stainless Steel Round Tube88,9  2,5  5,334  
Stainless Steel Round Tube88,9  2,6  5,541  
Stainless Steel Round Tube88,9  3  6,363  
Stainless Steel Round Tube88,9  3,2  6,772  
Stainless Steel Round Tube88,9  3,6  7,583  
Stainless Steel Round Tube88,9  4  8,386  
Stainless Steel Round Tube88,9  5  10,359  
Stainless Steel Round Tube101,6  1,5  3,708  
Stainless Steel Round Tube101,6  1,6  3,951  
Stainless Steel Round Tube101,6  2  4,919  
Stainless Steel Round Tube101,6  2,5  6,118  
Stainless Steel Round Tube101,6  2,6  6,356  
Stainless Steel Round Tube101,6  3  7,304  
Stainless Steel Round Tube101,6  3,2  7,775  
Stainless Steel Round Tube101,6  3,6  8,712  
Stainless Steel Round Tube101,6  4  9,640  
Stainless Steel Round Tube103  1,5  3,760  
Stainless Steel Round Tube104  2  5,037  
Stainless Steel Round Tube108  1,5  3,945  
Stainless Steel Round Tube108  2  5,235  
Stainless Steel Round Tube108  3  7,778  
Stainless Steel Round Tube108  4  10,272  
Stainless Steel Round Tube114,3  1,5  4,178  
Stainless Steel Round Tube114,3  1,6  4,453  
Stainless Steel Round Tube114,3  2  5,546  
Stainless Steel Round Tube114,3  2,5  6,902  
Stainless Steel Round Tube114,3  2,6  7,171  
Stainless Steel Round Tube114,3  3  8,245  
Stainless Steel Round Tube114,3  3,2  8,779  
Stainless Steel Round Tube114,3  3,6  9,841  
Stainless Steel Round Tube114,3  4  10,895  
Stainless Steel Round Tube114,3  5  13,495  
Stainless Steel Round Tube127  1,5  4,648  
Stainless Steel Round Tube128  1,5  4,685  
Stainless Steel Round Tube129  1,5  4,723  
Stainless Steel Round Tube129  2  6,272  
Stainless Steel Round Tube129  3  9,334  
Stainless Steel Round Tube139,7  1,5  5,119  
Stainless Steel Round Tube139,7  2  6,800  
Stainless Steel Round Tube139,7  2,6  8,802  
Stainless Steel Round Tube139,7  3  10,127  
Stainless Steel Round Tube139,7  3,6  12,099  
Stainless Steel Round Tube139,7  4  13,403  
Stainless Steel Round Tube153  1,5  5,611  
Stainless Steel Round Tube154  2  7,507  
Stainless Steel Round Tube155  2,5  9,414  
Stainless Steel Round Tube156  3  11,334  
Stainless Steel Round Tube159  4  15,310  
Stainless Steel Round Tube168,3  2  8,213  
Stainless Steel Round Tube168,3  2,6  10,638  
Stainless Steel Round Tube168,3  3  12,245  
Stainless Steel Round Tube168,3  3,6  14,641  
Stainless Steel Round Tube168,3  4  16,228  
Stainless Steel Round Tube203  1,5  7,463  
Stainless Steel Round Tube204  2  9,976  
Stainless Steel Round Tube205  2,5  12,501  
Stainless Steel Round Tube206  3  15,038  
Stainless Steel Round Tube219,1  2  10,722  
Stainless Steel Round Tube219,1  2,6  13,900  
Stainless Steel Round Tube219,1  3  16,008  
Stainless Steel Round Tube219,1  3,6  19,157  
Stainless Steel Round Tube219,1  4  21,246  
Stainless Steel Round Tube254  2  12,445  
Stainless Steel Round Tube255  2,5  15,587  
Stainless Steel Round Tube256  3  18,742  
Stainless Steel Round Tube273  2  13,384  
Stainless Steel Round Tube273  2,6  17,360  
Stainless Steel Round Tube273  3  20,001  
Stainless Steel Round Tube273  3,6  23,948  
Stainless Steel Round Tube273  4  26,570  
Stainless Steel Round Tube304  2  14,915  
Stainless Steel Round Tube306  3  22,446  
Stainless Steel Round Tube323,9  2  15,897  
Stainless Steel Round Tube323,9  3  23,772  
Stainless Steel Round Tube323,9  4  31,597  
Stainless Steel Round Tube354  2  17,384  
Stainless Steel Round Tube355,6  3  26,120  
Stainless Steel Round Tube406,4  3  29,883  

Round Tubes in Imperial Sizes

OD, InchWT., Inch
0.2500.020
0.2500.028
0.2500.035
0.2500.049
0.3130.035
0.3130.049
0.3750.028
0.3750.035
0.3750.049
0.3750.065
0.5000.035
0.5000.049
0.5000.065
0.6250.035
0.6250.049
0.6250.065
0.7500.035
0.7500.049
0.7500.065
10.035
10.049
10.065
1.5000.049
1.5000.065
20.049
20.065
2.5000.065
2.5000.083
30.049
30.065
30.083
3.5000.065
40.065
40.083