일반배관용 강관(백관·흑관) (SPP)


관의 호칭
바깥지름
바깥지름허용차
두께
두께
허용차
소켓을포함하지않은무게kg/m
mm
in
mm
테퍼나사관
기타관
mm
* 6
1/8
10.5
±0.5mm
2.00
0.419
* 8
1/4
13.8
±0.5mm
2.35
0.664
10
3/8
17.3
±0.5mm
2.35
0.866
15
1/2
21.7
±0.5mm
2.65
1.25
20
3/4
27.2
±0.5mm
2.65
1.60
25
1
34.0
±0.5mm
3.25
2.46
32
11/4
42.7
±0.5mm
3.25
3.16
40
11/2
48.6
±0.5mm
3.25
3.63
50
2
60.5
±0.5mm
±1%
3.65
5.12
65
21/2
76.3
±0.5mm
±1%
3.65
6.54
80
3
89.1
±0.5mm
±1%
4.05
+규정하지
8.49
90
31/2
101.6
±0.5mm
±1%
4.05
않음
9.74
100
4
114.3
±0.5mm
±1%
4.50
12.2
125
5
139.8
±0.5mm
±1%
4.85
-12.5%
16.1
150
6
165.2
±0.5mm
±1%
4.85
19.2
175
7
190.7
±0.5mm
±1%
5.30
24.2
200
8
216.5
±0.5mm
±1%
5.85
30.0
225
9
241.8
±0.5mm
±1%
6.20
36.0
250
10
267.4
±0.5mm
±1%
6.40
41.2
300
12
318.5
±0.5mm
±1%
7.00
53.8
350
14
355.6
-
±1%
7.60
65.2
400
16
406.4
-
±1%
7.9
77.6
450
18
457.2
-
±1%
7.9
87.5
500
20
508.0
-
±1%
7.9
97.4