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Products introduction
- Heat Exchanger
  Tubes & Pipes
- Tolerance table for
  heat exchanger tube
- finned tube
- U-bending tube/pipe
- Shell & Tube heat
  exchanger
- Instrument Tube
- Precision Tube
- ISO tolerance table
- Capillary tube
- Multi-shape tube
- Carbon steel tube/Pipe
Manufacturing Process
ISO tolerance table
 
ISO tolerance table (µm-1/1000mm)
OD(mm) Rod Cylinder
h8 h9 h11 f7 f8 H7 H8 H9 H10 H11
1.6 ~ 2.9 +0
-14
+0
-25
+0
-60
-6
-16
-6
-20
+9
+0
+14
+0
+25
+0
+40
+0
+60
+0
3.0 ~ 5.9 +0
-18
+0
-30
+0
-75
-10
-22
-10
-28
+12
+0
+18
+0
+30
+0
+48
+0
+75
+0
6.0 ~ 9.9 +0
-22
+0
-36
+0
-90
-13
-28
-13
-35
+15
+0
+22
+0
+36
+0
+58
+0
+90
+0
10 ~ 17 +0
-27
+0
-43
+0
-110
-16
-34
-16
-43
+18
+0
+27
+0
+43
+0
+70
+0
+110
+0
18 ~ 29 +0
-33
+0
-52
+0
-130
-20
-41
-20
-53
+21
+0
+33
+0
+52
+0
+84
+0
+130
+0
30 ~ 49 +0
-39
+0
-62
+0
-160
-25
-50
-25
-64
+25
+0
+39
+0
+62
+0
+100
+0
+160
+0
50 ~ 79 +0
-46
+0
-74
+0
-190
-30
-60
-30
-76
+30
+0
+46
+0
+74
+0
+120
+0
+190
+0
80 ~ 119 +0
-54
+0
-87
+0
-220
-36
-71
-36
-90
+35
+0
+54
+0
+87
+0
+140
+0
+220
+0
120 ~ 179 +0
-63
+0
-100
+0
-250
-43
-83
-43
-106
+40
+0
+63
+0
+100
+0
+160
+0
+250
+0
180 ~ 249 +0
-72
+0
-115
+0
-290
-50
-96
-50
-122
+46
+0
+72
+0
+115
+0
+185

+0
+290
+0
250 ~ 314 +0
-81
+0
-130
+0
-320
-56
-108
-56
-137
+52
+0
+81
+0
+130
+0
+210
+0
+320
+0
315 ~ 399 +0
-89
+0
-140
+0
-360
-62
-119
-62
-151
+57
+0
+89
+0
+140
+0
+230
+0
+360
+0
400 ~ 500 +0
-97
+0
-155
+0
-400
-68
-131
-68
-165
+63
+0
+97
+0
+155
+0
+250
+0
+400
+0
* ISO 286/BS 4500
 
 
 
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