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Different Size Dimensions of Sanitary Stainless Steel Tube

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There is no single article that can demonstrate the entire specs of stainless steel tube over the world. It is a huge work, including ID & OD dimensions, wall thickness as well as some optional end connections in different worldwide standards, such as ISO, SMS, DIN, ASME BPE, etc. This article will try to group a rough idea about the sizes dimensions of sanitary stainless steel tube in those standards, hopefully, it would be helpful for you when selecting.
 
Sanitary Stainless Steel Tube is commonly used in the food, beverage, brewing & pharmaceutical industries as it is cleanable, either by dismounting and cleaning manually or using a CIP system (clean in place). And more importantly, it is corrosion resistant that suits properly for most of sanitary process circumstances.
 
So, basically what we got here are the various sizes that refer to ODs and wall thicknesses in some common standards for sanitary process, see the table below. 

 

Sanitary Stainless Steel Tube
                                                                                                                           UOM: mm
ISO 3A DIN(DIN11850)        SERIES2 DIN(DIN11850) SERIES1 DIN ASME BPE BS SMS ISO 1127
Size OD T Size OD T Size OD T Size OD T Size OD T Size OD T Size OD T Size OD T Size OD T
                              1/4" 6.35 0.89                  
            DN10 13 1.5 DN10 12 1.0 DN10 12 1.5 3/8" 9.53 0.89                  
      1/2" 12.7 1.65 DN15 19 1.5 DN15 18 1.0 DN15 18 1.5 1/2" 12.7 1.65 1/2" 12.7 1.6       1/2" 21.3 1.6
      3/4" 19.1 1.65 DN20 23 1.5 DN20 22 1.0 DN20 22 1.5 3/4" 19.1 1.65 3/4" 19.1 1.6       3/4" 26.9 1.6
25 25 1.2 1.0" 25.4 1.65 DN25 29 1.5 DN25 28 1.0 DN25 28 1.5 1.0" 25.4 1.65 1.0" 25.4 1.6 25 25.4 1.25/1.5 1" 33.7 2
32 31.8 1.2       DN32 35 1.5 DN32 34 1.0 DN32 34 1.5       1.25" 31.8 1.6 32 31.8 1.25/1.5 1.25" 42.4 2
38 38.1 1.2 1.5" 38.1 1.65                   1.5" 38.1 1.65 1.5" 38.1 1.6 38 38.1 1.25/1.5 1.5" 48.3 2
            DN40 41 1.5 DN40 40 1.0 DN40 40 1.5                        
51 50.8 1.2 2.0" 50.8 1.65 DN50 53 1.5 DN50 52 1.0 DN50 52 1.5 2.0" 50.8 1.65 2.0" 50.8 1.6 51 50.8 1.25/1.5 2" 60.3 2
63 63.5 1.6 2.5" 63.5 1.65                   2.5" 63.5 1.65 2.5" 63.5 1.6 63.5 63.5 1.5/2.0 2.5" 76.2 2
            DN65 70 2                                    
76 76.2 1.6 3.0" 76.2 1.65                   3.0" 76.2 1.65 3.0" 76.2 1.6 76 76.2 1.6/2.0 3" 88.9 2
            DN80 85 2                                    
                                          89 89 2      
101 101.6 2 4.0" 101.6 2.11 DN100 104 2             4.0" 101.6 2.11 4.0" 101.6 2 101.6 101.6 2 4" 114.3 2
104 104 2       DN125 129 2                                    
                                    5.0" 129 2       5" 139.7 2
129 129 2 6.0" 152.4 2.77 DN150 154 2             6.0" 152.4 2.77 6.0" 154 2       6" 168.3 3.6
204 204 2 8.0" 203.2 2.77 DN200 204 2                   8.0" 204 2       8" 219.1 3.6
                                    10.0" 254 2            

QiMing Stainless has been engaged in manufacturing sanitary stainless steel tube for a decade, familiar with various standards with applications over the world. So, try to reach us for any further questions/inquiries, we would be more than willing to assist and share as professionals :) Also, this table is free to download in our service and support section.
 

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