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Commonly used stainless steel tube dimensions

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COMMONLY USED STAINLESS STEEL TUBE DIMENSIONS

Pipes are also called differently in common parlance. In practice we encounter descriptions such as:

  • inch pipes, conduits, inch pipes, gas pipes, steam pipes, tubing, dairy pipes, milk pipes
  • 1" pipe, 1 inch milk pipe, 1 1/2" pipe, 2 inch pipe, 2 1/2" gas pipe, 3" dairy pipe, 4 inch milk pipe, 5 inch ISO pipe, 6" pipe, schedule pipe, steam pipe, ASTM pipe, SCH pipe, INCH pipe. This can be an inch size, DN size, ISO size, ASTM size, EN size, BS size, SMS size etc.

From the above you will understand that a lot of confusion can arise because there are many different pipe sizes, terms, descriptions and standards in circulation.

We therefore recommend that when making a request or placing an order, you only discuss the external tube size (pipe size), wall thickness and descriptions such as quality, finish, etc.

UD = external diameter of the pipe.

TUBE DIAMETERS, WALL THICKNESSES AND WEIGHTS:

Dutch dairy tubes - Dutch Dairy

INCH UD x wall thickness Kg/mtr.
1"

25,4 x 1,20 mm

0,756
1 1 / 4 " 31,8 x 1,20 mm 0,955
1 1 / 2 " 38,1 x 1,50 mm 1,371
2" 50,8 x 1,50 mm 1,822
2 1 / 2 " 63,5 x 1,50 mm 2,329
3" 76,1 x 1,50 mm 2,802
4" 101,6 x 1,50 mm 3,760
4" 101,6 x 2,00 mm 4,988

Dutch Dairy standard

Previously according to regulations DIN 11850 Food / Dairy / Beverages - Internal average roughness value Ra ≤ 0,8 µm and ≤ 1,6 µm in the welding environment.

New standard in 2014 - EN 10357 Series D Food / Dairy / Beverages - Internal average roughness value Ra ≤ 0,8 µm and ≤ 1,6 µm in the welding environment.

Hollimex also supplies these pipes according to the EHEDG guideline with an internal roughness value Ra ≤ 0,8 µm also in the welding environment.

DIN 11866 Reihe A, H3 Pharma application - Internal average roughness value Ra ≤ 0,8 µm and ≤ 0,8 µm in the welding environment.

DIN 11866 Reihe A, H4 Pharma application - Internal average roughness value Ra ≤ 0,4 µm and ≤ 0,4 µm in the welding environment.

Hollimex supplies more and more products that meet the EHEDG guidelines meet. Think of dairy pipes, appendages and process components with an average internal surface roughness Ra ≤ 0,8 µm (also in the welding environment). We often supply these products under the name QH-Plus . So very recognizable for you.

German dairy tubes - DIN - Series 1

NW UD x wall thickness Kg/mtr.

10

12,0 x 1,00 mm

0,275

15

18,0 x 1,00 mm 0,426
20 22,0 x 1,00 mm 0,526
25 28,0 x 1,00 mm 0,676
32 34,0 x 1,00 mm 0,826
40 40,0 x 1,00 mm 0,977
50 52,0 x 1,00 mm 1,277
     
  old building  
10 12,0 x 1,50 mm 0,394
15 18,0 x 1,50 mm 0,620
20 22,0 x 1,50 mm 0,770
25 28,0 x 1,50 mm 0,995
32 34,0 x 1,50 mm 1,221
40 40,0 x 1,50 mm 1,446
50 50,0 x 1,50 mm 1,897

German Standard

DIN 11850 Baureihe 1 Food / Dairy / Beverages - Internal average roughness value Ra ≤ 0,8 µm and ≤ 1,6 µm in the welding environment.

New standard in 2014 - EN 10357 Series B Food / Dairy / Beverages - Internal average roughness value Ra ≤ 0,8 µm and ≤ 1,6 µm in the welding environment.

Hollimex also supplies these pipes according to the EHEDG guidelines with an internal roughness value Ra ≤ 0,8 µm also in the welding environment.

DIN 11866 Reihe A, H3 Pharma application - Internal average roughness value Ra ≤ 0,8 µm and ≤ 0,8 µm in the welding environment. 

DIN 11866 Reihe A, H4 Pharma application - Internal average roughness value Ra ≤ 0,4 µm and ≤ 0,4 µm in the welding environment.

German dairy tubes - DIN - Series 2

NW UD x wall thickness Kg/mtr.

10

13,0 x 1,50 mm

0,432

15 19,0 x 1,50 mm 0,658
20 23,0 x 1,50 mm 0,808
25 29,0 x 1,50 mm 1,034
32 35,0 x 1,50 mm 1,258
40 41,0 x 1,50 mm 1,485
50 53,0 x 1,50 mm 1,937
65 70,0 x 2,00 mm 3,405
80 85,0 x 2,00 mm 4,156
100 104,0 x 2,00 mm 5,108
125 129,0 x 2,00 mm 6,360
150 154,0 x 2,00 mm 7,612
200 204,0 x 2,00 mm 10,116
250 254,0 x 2,00 mm 12,620

German Standard

DIN 11850 Baureihe 2 Food / Dairy / Beverages - Internal average roughness value Ra ≤ 0,8 µm and ≤ 1,6 µm in the welding environment.

New standard in 2014 - EN 10357 Series A Food / Dairy / Beverages - Internal average roughness value Ra ≤ 0,8 µm and ≤ 1,6 µm in the welding environment.

Hollimex also supplies these pipes according to the EHEDG guidelines with an internal roughness value Ra ≤ 0,8 µm also in the welding environment.

DIN 11866 Reihe A, H3 Pharma application - Internal average roughness value Ra ≤ 0,8 µm and ≤ 0,8 µm in the welding environment.

DIN 11866 Reihe A, H4 Pharma application - Internal average roughness value Ra ≤ 0,4 µm and ≤ 0,4 µm in the welding environment.

Hollimex supplies more and more products that meet the EHEDG guidelines meet. Think of dairy pipes, weld bends, T-pieces, weld reducers, couplings, butterfly valves, etc. with an average internal surface roughness Ra ≤ 0,8 µm (also in the welding environment). We often supply these products under the name QH-Plus . So very recognizable for you.

BS 4825-1 dairy tubes

INCH UD x wall thickness Kg/mtr.

1 / 2 "

12,70 x 1,20 *

0,35

  12,70 x 1,60 0,46
3 / 4 " 19,05 x 1,20 * 0,55
  19,05 x 1,60 0,71
1" 25,40 x 1,20 0,75
  25,40 x 1,60 * 0,98
1 1 / 4 " 31,80 x 1,20 0,95
  31,80 x 1,60 1,14
1 1 / 2 " 38,10 x 1,20 1,22
  38,10 x 1,60 * 1,51
2" 50,80 x 1,20 1,50
  50,80 x 1,60 * 1,88
2 1 / 2 " 63,50 x 1,60 * 2,49
3" 76,20 x 1,60 * 3,01
4" 101,60 x 1,60 3,80
  101,60 x 2,00 * 4,99
4 1 / 2 " 114,30 x 2,00 7,27
5 1 / 2 " 139,70 x 2,00 6,90
6 5 / 8 " 168,30 x 2,60 10,79
8 5 / 8 " 219,10 x 2,60 14,10

British Standard  

BS 4825 Part 1 Food/Dairy/Beverage Fittings are manufactured to: BS 4825 Parts 2 to 5

New standard in 2014 - EN10357 Series D Food / Dairy / Beverages - Internal average roughness value Ra ≤ 0,8 µm and ≤ 1,6 µm in the welding environment.

Hollimex also supplies these pipes according to the EHEDG guidelines with an internal roughness value Ra ≤ 0,8 µm also in the welding environment.

Welded joints ( bends and tees ) - BS4825 : Part 2, Clamp Fittings - BS2825: Part 3, IDF Unions - BS2825 : Part 4, RJT Unions - BS4825 : Part 5

Hollimex supplies more and more products that meet the EHEDG guidelines meet. Think of dairy pipes, appendages and process components with an average internal surface roughness Ra ≤ 0,8 µm (also in the welding environment). We often supply these products under the name QH-Plus. So very recognizable for you. Read more ....

 

SMS 3008 dairy tubes

INCH UD x wall thickness Kg/mtr.

1"

25,00 x 1,20 mm

0,72

1 1 / 4 " 32,00 x 1,20 mm 0,93
1 1 / 2 " 38,00 x 1,20 mm 1,11
2" 51,00 x 1,20 mm 1,52
2 1 / 2 " 63,50 x 1,60 mm 2,49
3" 76,10 x 1,60 mm 3,97
4" 101,60 x 2,00 mm 4,99 

Food / Dairy / Beverages - Internal average roughness value Ra ≤ 0,8 µm and ≤ 1,6 µm in the welding environment.

 

ISO 2037 dairy tubes

UD x wall thickness Kg/mtr.
12,0 x 1,00 mm

0,275

17,2 x 1,00 mm

0,392
21,3 x 1,00 mm 0,495
25,0 x 1,20 mm 0,715
33,7 x 1,20 mm 0,966
33,7 x 1,60 mm 0,109
38,0 x 1,20 mm 1,106
38,0 x 1,60 mm 1,463
40,0 x 1,20 mm 1,166
40,0 x 1,60 mm 1,542
51,0 x 1,20 mm 1,520
51,0 x 1,60 mm 2,027
63,5 x 1,60 mm 2,484
70,0 x 1,60 mm 2,745
76,1 x 1,60 mm 2,985
88,9 x 2,00 mm 4,352
101,6 x 2,00 mm 4,988
114,3 x 2,00 mm 5,624
139,7 x 2,00 mm 6,896
168,3 x 2,60 mm 10,788
219,1 x 2,60 mm 14,095

International Organization for Standardization

ISO 2037 Food / Dairy / Beverages - Internal average roughness value Ra ≤ 0,8 µm and ≤ 1,6 µm in the welding environment.

 

ASTM A270 S3/A3 dairy tubes

INCH UD x wall thickness Kg/mtr.

1 / 2 "

12,70 x 1,65 mm

0,457

3 / 4 " 19,05 x 1,65 mm 0,719
1" 25,40 x 1,65 mm 0,981
1 1 / 2 " 38,10 x 1,65 mm 1,513
2" 50,80 x 1,65 mm 2,037
2 1/2 63,50 x 1,65 mm 2,562
3" 76,20 x 1,65 mm 2,990
4" 101,60 x 2,11 mm 5,256
6" 152,40 x 2,77 mm

7,400

ASTM: - American Society for Testing and Materials

A270 - Sanitary Stainless Steel Tubing for Dairy, Food, Beverage, and other Sanitary Processes

 

ASME BPE Pharma tubes 

INCH UD x wall thickness Kg/mtr.

1 / 4 "

6,35 x 0,89 mm

0,122

3 / 8 " 9,53 x 0,89 mm 0,193
1 / 2 " 12,70 x 1,65 mm 0,457
3 / 4 " 19,05 x 1,65 mm 0,719
1" 25,40 x 1,65 mm 0,981
1 1 / 2 " 38,10 x 1,65 mm 1,513
2" 50,80 x 1,65 mm 2,037
2 1/2 63,50 x 1,65 mm 2,562
3" 76,20 x 1,65 mm 2,990
4" 101,60 x 2,11 mm 5,256
6" 152,40 x 2,77 mm 7,400

AS METhe American Society of Mechanical Engineers

BPE: Bio Processing Equipment

 

ISO GAS tubes

INCH UD x wall thickness Kg/mtr.

1 / 8 "

1 / 4 "

10,2 x 2,00 mm

13,5 x 2,30 mm

0,41

0,65

3 / 8 " 17,2 x 2,30 mm 0,88
1 / 2 " 21,3 x 2,65 mm 1,24
3 / 4 " 26,9 x 2,65 mm 1,61

1"

1 1 / 4 "

33,7 x 3,25 mm

42,4 x 3,25 mm

2,49

3,15

1 1 / 2 " 48,3 x 3,25 mm 3,68
2" 60,3 x 3,65 mm 5,19
2 1/2 76,1 x 3,65 mm 6,64
3" 88,9 x 4,05 mm 8,63
     

 

ASTM ANSI tubes

SCH UD 5S 10S 40S 80S
1 / 8 " 10,29

 

1,24 1,73 2,41
1 / 4 " 13,72   1,65 2,24 3,02
3 / 8 " 17,15   1,65 2,31 3,20
1 / 2 " 21,34 1,65 2,11 2,77 3,73
3 / 4 " 26,67 1,65 2,11 2,87 3,91
1" 33,40 1,65 2,77 3,38 4,55
1 1 / 4 " 42,16 1,65 2,77 3,56 4,85
1 1 / 2 " 48,26 1,65 2,77 3,68 5,08
2" 60,33 1,65 2,77 3,91 5,54
2 1 / 2 " 73,03 2,11 3,05 5,16 7,01
3" 88,90 2,11 3,05 5,49 7,62
3 1 / 2 " 101,60 2,11 3,05 5,74 8,08
4" 114,30 2,11 3,05 6,02 8,56
5" 141,30 2,77 3,40 6,55 9,53
6" 168,28 2,77 3,40 7,11 10,97
8" 219,08 2,77 3,76 8,18 12,70
10" 273,05 3,40 4,19 9,27 12,70
12" 323,85 3,96 4,57 9,53 12,70
14" 355,60 3,96 4,78 9,53 12,70
16" 406,40 4,19 4,78 9,53 12,70
18" 457,20 4,19 4,78 9,53 12,70
20" 508,00 4,78 5,54 9,53 12,70
24" 609,60 5,54 6,35 9,53 12,70

 

ASTM: American Society for Testing and Materials

ANSI:  American National Standards Institute, Inc.

Example:

Question from a relationship: stainless steel 2 inch pipe schedule 40 in 304L

This refers to a stainless steel pipe with an external pipe diameter of 60,33 mm and a wall thickness of 3,91 mm in material quality AISI 304L  

Also take a look at the abbreviated overviews:

commonly used tube dimensions in A4 format

material data in A4 format.

Or for more information about welded and seamless tubes, bars, plates and profiles, see the Semi-finished products product group. Read more ....  

For standards such as: 3A - AFNOR - AISI - ANSI - API - ATEX - ASME - ASTM - BS - CE - CETIM - CEN - DIN - EN - EHEDG - FDA - GOST- ISO - JIS - MSS - NEN - PED - SIS - SMS - UNI - Read more ....

Also take a look at our complete delivery program !

 

 

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Hollimex: technical wholesaler with a wide range of metals, plastics and tools. Direct delivery, customization and flexible logistics. Independent family business with over 40 years of experience.
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