Specification : KS D 3557, JIS G 3463, ASTM A249/A270
Usage : boiler part, hat exchanger, usded in chemical and petroleum industry
Unit : mm
Nominal size
| O.D
| Nominal Wall Thickness (SCH)
|
5S
| 10S
| 20S
| 40
| 40S
| 80
| 80S
|
A
| B
| KS(JIS)
| ASTM
| KS(JIS)
| ASTM
| KS(JIS)
| ASTM
| KS(JIS)
| KS(JIS)
| ASTM
| KS(JIS)
| ASTM
|
6
| 1/3
| 10.5
| 10.29
| 1.0
| | 1.2
| 1.24
| 1.5
| 1.7
| 1.73
| 2.4
| 2.41
|
8
| 1/4
| 13.8
| 13.72
| 1.2
| | 1.65
| 1.65
| 2.0
| 2.2
| 2.24
| 3.0
| 3.02
|
10
| 3/8
| 17.3
| 17.15
| 1.2
| | 1.65
| 1.65
| 2.0
| 2.3
| 2.31
| 3.2
| 3.20
|
15
| 1/2
| 21.7
| 21.34
| 1.65
| 1.65
| 2.1
| 2.11
| 2.5
| 2.8
| 2.77
| 3.7
| 3.73
|
20
| 3/4
| 27.2
| 26.67
| 1.65
| 1.65
| 2.1
| 2.11
| 2.5
| 2.9
| 2.87
| 3.9
| 3.91
|
25
| 1
| 34.0
| 33.40
| 1.65
| 1.65
| 2.8
| 2.77
| 3.0
| 3.4
| 3.38
| 4.5
| 4.55
|
32
| 1 1/4
| 42.7
| 42.16
| 1.65
| 1.65
| 2.8
| 2.77
| 3.0
| 3.6
| 3.56
| 4.9
| 4.85
|
40
| 1 1/2
| 48.6
| 48.26
| 1.65
| 1.65
| 2.8
| 2.77
| 3.0
| 3.7
| 3.68
| 5.1
| 5.08
|
50
| 2
| 60.5
| 60.33
| 1.65
| 1.65
| 2.8
| 2.77
| 3.5
| 3.9
| 3.91
| 5.5
| 5.54
|
65
| 2 1/2
| 76.3
| 73.03
| 2.1
| 2.11
| 3.0
| 3.05
| 3.5
| 5.2
| 5.16
| 7.0
| 7.01
|
80
| 3
| 89.1
| 88.90
| 2.1
| 2.11
| 3.0
| 3.05
| 4.0
| 5.5
| 5.49
| 7.6
| 7.62
|
90
| 3 1/2
| 101.6
| 101.60
| 2.1
| 2.11
| 3.0
| 3.05
| 4.0
| 5.7
| 5.74
| 8.1
| 8.08
|
100
| 4
| 114.3
| 114.30
| 2.1
| 2.11
| 3.0
| 3.05
| 4.0
| 6.0
| 6.02
| 8.6
| 8.56
|
125
| 5
| 139.8
| 141.30
| 2.8
| 2.77
| 3.4
| 3.40
| 5.0
| 6.6
| 6.55
| 9.5
| 9.52
|
150
| 6
| 165.2
| 168.28
| 2.8
| 2.77
| 3.4
| 3.40
| 5.0
| 7.1
| 7.11
| 11.0
| 10.97
|
200
| 8
| 216.3
| 219.08
| 2.8
| 2.77
| 4.0
| 3.76
| 6.5
| 8.2
| 8.18
| 12.7
| 12.70
|
250
| 10
| 267.4
| 273.05
| 3.4
| 3.40
| 4.0
| 4.19
| 6.5
| 9.3
| 9.27
| 15.1
| 12.70
|
300
| 12
| 318.5
| 323.85
| 4.0
| 3.96
| 4.5
| 4.57
| 6.5
| 10.3
| 9.52
| 17.4
| 12.70
|
350
| 14
| 355.6
| 355.60
| | 3.96
| | 4.78
| | 11.1
| | 19.0
| |
400
| 16
| 406.4
| 406.40
| | 4.19
| | 4.78
| | 12.7
| | 21.4
| |
Unit : mm
Division
| KS D 3577(JIS G 3463)
| ASTM A 249(A 1016)
|
Tolerances
| Outer
Diameter
| D < 60
| ±0.25
| D < 25.4
| ±0.10
|
60 ≤ D < 80
| ±0.30
| 25.4 ≤ D < 38.1
| ±0.15
|
80 ≤ D <100
| ±0.40
| 38.1 ≤ D < 50.8
| ±0.20
|
100 ≤ D < 120
| +0.40
-0.60
| 50.8 ≤ D < 63.5
| ±0.25
|
120 ≤ D < 160
| +0.40
-0.80
| 63.5 ≤ D < 76.2
| ±0.30
|
Wall
Thickness
| D < 40
| t < 2
| +0.40
-0
| All Size
| ±10%
or +18%
-0
|
t ≥ 2
| +20%
-0
|
D ≥ 40
| All
| +22%
-0
|
Length
| D ≤ 50
| I ≤ 7000
| +7.0
| D < 50.8
| +3
-0
|
I > 7000
| +10.0
|
D > 50
| I ≤ 7000
| +10.0
| D ≥ 50.8
| +5
-0
|
I > 7000
| +13.0
|
Straightness
| Shall be practically straight
| Under 0.76 per 914
|
