Stainless Steel Seamless Round Tube

Stirlings stocks a range of Seamless Round Tube in Austenitic Grades 304/L and 316/L manufactured to ASTM A269/213.  

Seamless Round Tube is cold drawn, annealed & pickled. 

Stirlings stocks Seamless Round Tube in Wall Thicknesses 0.9mm, 1mm, 1.2mm, 1.5mm, 1.6mm, 2.0mm, 2.5mm, 3.0mm, 3.25mm and 4.0mm in sizes from O.D 3.18mm to 50.8mm. Everything currently in stock is specified in the tables below.   

The standard length of Seamless Round Tube is 6 metres, and can be cut to any custom length required with our in-house Bandsaw processing service. 

Mechanical polishing is available via our in-house Pipe and Tube polishing service, please enquire.

● Stocked Item ○ Market Available

Anything not currently in stock/Market Available can be obtained via indent.

SAFE WORKING PRESSURES FOR AUSTENITIC STAINLESS STEEL TUBING

  • Alternative specifications: A213

  • Alternative grades also available

  • Please note, the typical safe working pressure figures in the table were calculated on a safety factor of ‘4’.

  • Tensile Strength for 316, 304 & 321 Seamless Stainless Steel Tube - 515 MPa

    Tensile Strength for 316L, 304L Seamless Stainless Steel - 485 MPa

 

● Stocked Item ○ Market Available

Size 304/ 316/ Weight Burst
Typical
W.T. O.D. 304L 316L kg/
Pressure Safe
        metre PSI Working
            Pressure
           304L / 316L  304L / 316L
0.9 3.18 ○ ○ 0.05 39,885 9,971
  4.76 ○ ● 0.08 26,542 6,635
  6.35 ○ ● 0.12 19,870 4,968
  7.94 ○ ○ 0.15 15,954 3,989
  9.52 ○ ● 0.19 13,343 3,336
  12.7 ○ ● 0.26 10,008 2,502
1 6 ○ ● 0.12 23,496 5,874
  8 ○ ● 0.20 17,550 4,387
  10 ○ ● 0.22 14,069 3,517
  12 ○ ● 0.24 11,748 2,937
1.2 6.35 ○ ● 0.15 26,542 6,635
  7.94 ○ ● 0.2 21,321 5,330
  9.52 ○ ● 0.25 17,695 4,424
  12.7 ○ ● 0.35 13,343 3,336
  15.88 ○ ● 0.45 10,588 2,647
  19.05 ○ ● 0.55 8,847 2,212
  25.4 ○ ● 0.75 6,672 1,668
1.5 8 ○ ● 0.25 26,397 6,599
  10 ○ ● 0.32 21,176 5,294
  12 ○ ● 0.4 17,550 4,387
  25 ○ ○ 0.88 8,412 2,103
1.6 6.35 ○ ● 0.19 35,389 8,847
  9.52 ○ ● 0.32 23,641 5,910
  12.7 ○ ● 0.45 17,695 4,424
  15.88 ○ ● 0.58 14,214 3,553
  19.05 ○ ● 0.71 11,748 2,937
  25.4 ○ ● 0.98 8,847 2,212
  31.75 ○ ● 1.24 7,107 1,777
  38.1 ○ ● 1.51 5,947 1,487
  50.8 ○ ● 2.03 4,496 1,124
2 12.7 ○ ● 0.55 22,191 5,548
  16 ○ ● 0.69 17,550 4,387
  18 ○ ● 0.79 15,664 3,916
  19.05 ○ ● 0.89 14,794 3,698
  20 ○ ● 0.89 14,069 3,517
  22 ○ ● 1 12,763 3,191
  25.4 ○ ● 1.23 11,023 2,756
  28 ○ ● 1.29 10,008 2,502
  31.75 ○ ● 1.57 8,847 2,212
  35 ○ ● 1.65 7,977 1,994
  38.1 ○ ○ 1.9 7,397 1,849
2.5 25 ○ ● 1.4 14,069 3,517
3 25.4 ○ ● 1.71 16,679 4,170
  30 ○ ● 2.01 14,069 3,517
  31.75 ○ ● 2.19 13,343 3,336
  38 ○ ● 2.6 11,168 2,792
  42 ○ ● 2.93 11,023 2,756
  38.1 ○ ● 2.68 10,008 2,502
3.25 50.8 ○ ● 3.65 8,992 2,248
4 38 ○ ● 3.41 14,794 3,698