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표준단면칫수
외경
외경 허용차
두께
두께허용차
소켓제외단층
mn.
in.
mm
테퍼나사관
기타관
KS(mm)
JIS(mm)
kg/m
10
3/8
17.3
±0.5mm
2.35
2.3
+ 규정하지
않음
- 12.5%
0.866
15
1/2
21.7
±0.5mm
2.65
2.8
1.25
20
3/4
27.2
±0.5mm
2.65
2.8
1.60
25
1
34.0
±0.5mm
3.25
3.2
2.45
32
11/4
42.7
±0.5mm
3.25
3.5
3.16
40
11/2
48.6
±0.5mm
3.25
3.5
3.63
50
2
60.5
±0.5mm
±1%
3.65
3.8
5.12
65
21/2
76.3
±0.7mm
±1%
3.65
4.2
6.34
80
3
89.1
±0.8mm
±1%
4.05
4.2
9.74
90
31/2
101.6
±0.8mm
±1%
4.05
4.2
8.49
100
4
114.3
±0.8mm
±1%
4.50
4.5
12.2
125
5
139.8
±0.8mm
±1%
4.85
4.5
16.1
150
5
165.2
±0.9mm
±1%
4.85
5.0
19.2
200
8
216.3
±1.0mm
±1%
5.85
5.8
30.4
250
10
267.4
±1.3mm
±1%
6.40
6.6
41.2
300
12
318.5
±1.5mm
±1%
7.00
6.9
53.8
350
14
355.6
-
±1%
7.60
7.9
65.2
400
16
406.4
-
±1%
7.9
7.9
77.6
450
18
457.2
±
±1%
7.9
7.9
77.6
500
20
508.0
±
±1%
7.9
7.9
87.5
550
22
558.8
±
±1%
7.9
107.0
600
24
609.6
±
±1%
7.9
117.0