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스테인리스

배관용 파이프
규격: KS D-3576, JIS G-3446, ASTM A-312
호칭경 외경(mm) 호칭 두께 SCH (mm)
5S 10S 20S 40(S) 80(S)
A B KS/JIS ASTM KS/JIS ASTM KS/JIS ASTM KS/JIS KS/JIS ASTM KS/JIS ASTM
8 1/4 13.8 13.72 1.2 - 1.65 1.65 2.0 2.2 2.24 - -
10 3/8 17.3 17.15 1.2 - 1.65 1.65 2.0 2.3 2.31 - -
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 1¼ 42.7 42.16 1.65 1.65 2.8 2.77 3.0 3.6 3.56 4.9 4.85
40 1½ 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 2½ 76.3 73.03 2.1 2.11 3.0 3.05 3.5 5.2 5.16 - -
80 3 89.1 88.90 2.1 2.11 3.0 3.05 4.0 5.5 5.49 - -
90 3½ 101.6 101.60 2.1 2.11 3.0 3.05 4.0 5.7 5.74 - -
100 4 114.3 114.30 2.1 2.11 3.0 3.05 4.0 6.0 6.02 - -
125 5 139.8 141.30 2.8 2.77 3.4 3.40 5.0 6.6 6.55 - -
150 6 165.2 168.28 2.8 2.77 3.4 3.40 5.0 7.1 7.11 - -
200 8 216.3 219.08 2.8 2.77 4.0 3.76 6.5 8.2 8.18 - -
250 10 267.4 273.05 3.4 3.40 4.0 4.19 6.5 9.3 9.27 - -
300 12 318.5 323.85 4.0 3.96 4.5 4.57 6.5 10.3 9.53 - -
350 14 355.6 355.6 - 3.96 - 4.78 - 11.1 - - -
400 16 406.4 406.4 - 4.19 - 4.78 - 12.7 - - -

* ASTM 호칭두께는 ANSI/ASME B36.19M-1985에 따름.

허용공차

(단위: mm)

KS D3 576 (JIS G3459) ASTM A312 (A999)
허용공차 외경 D < 30 ± 0.3 10.29 ≤ D ≤ 48.26 + 0.40
− 0.80
D ≥ 30 ± 1% 48.26 < D ≤ 114.3 ± 0.80
114.3 ≤ D ≤ 219.08 + 1.60
− 0.80
219.08 ≤ D ≤ 406.4 + 2.40
− 0.80
두께 t < 2 ± 0.2 모든 치수 +
t ≥ 2 ± 10% - 12.5%
길이 지정길이 이상 모든 치수 + 6.0mm
- 0
진직도 실용상 곧아야 함 실용상 곧아야 함