호칭지름

외경
(mm)

SCH 5S

SCH 10S

SCH 20S

SCH 40S

A

B

W.T.
(mm)

304
304L

316
316L

W.T.
(mm)

304
304L

316
316L

W.T.
(mm)

304
304L

316
316L

W.T.
(mm)

304
304L

316
316L

6

1/8

10.5

1.0

0.237

0.238

1.2

0.278

0.280

1.5

0.336

0.338

1.7

0.373

0.375

8

1/4

13.8

1.2

0.377

0.379

1.65

0.499

0.503

2.0

0.588

0.592

2.2

0.636

0.640

10

3/8

17.3

1.2

0.481

0.484

1.65

0.643

0.647

2.0

0.762

0.767

2.3

0.859

0.865

15

1/2

21.7

1.65

0.824

0.829

2.1

1.03

1.03

2.5

1.20

1.20

2.8

1.32

1.33

20

3/4

27.2

1.65

1.05

1.06

2.1

1.31

1.32

2.5

1.54

1.55

2.9

1.76

1.77

25

1

34.0

1.65

1.33

1.34

2.8

2.18

2.19

3.0

2.32

2.33

3.4

2.59

2.61

32

1 1/4

42.7

1.65

1.69

1.70

2.8

2.78

2.80

3.0

2.97

2.99

3.6

3.51

3.53

40

1 1/2

48.6

1.65

1.93

1.94

2.8

3.19

3.21

3.0

3.41

3.43

3.7

4.14

4.16

50

2

60.5

1.65

2.42

2.43

2.8

4.02

4.05

3.5

4.97

5.00

3.9

5.50

5.53

65

2 1/2

76.3

2.1

3.88

3.91

3.0

5.48

5.51

3.5

6.35

6.39

5.2

9.21

9.27

80

3

89.1

2.1

4.55

4.58

3.0

6.43

6.48

4.0

8.48

8.53

5.5

11.5

11.5

90

3 1/2

101.6

2.1

5.20

5.24

3.0

7.37

7.42

4.0

9.72

9.79

5.7

13.6

13.7

100

4

114.3

2.1

5.87

5.91

3.0

8.32

8.37

4.0

11.0

11.1

6.0

16.2

16.3

125

5

139.8

2.8

9.56

9.62

3.4

11.6

11.6

5.0

16.8

16.9

6.6

21.9

22.0

150

6

165.2

2.8

11.3

11.4

6.4

13.7

13.8

5.0

20.0

20.1

7.1

28.0

28.1

200

8

216.3

2.8

14.9

15.0

4.0

21.2

21.3

6.5

34.0

34.2

8.2

42.5

42.8

250

10

267.4

3.4

22.4

22.5

4.0

26.2

26.4

6.5

42.2

42.5

9.3

59.8

60.2

300

12

318.5

4.0

31.3

31.5

4.5

35.2

35.4

6.5

50.5

50.8

10.3

79.1

79.6

350

14

355.6

4.0

35.0

35.3

5.0

43.7

43.9

8.0

69.3

69.7

11.1

95.3

95.9

400

16

406.4

4.5

45.1

45.3

5.0

50.0

50.3

8.0

79.4

79.9

12.7

125

125

 

(단위 : kg/m)


재 질 명

KS D3576(JIS G3459)

ASTM A312

공차

외  경

D < 30

± 0.3

10.29 ≤ D ≤ 48.26

+0.4
-0.8

48.26 < D ≤ 114.3

±0.8

D ≥ 30

± 1%

114.3 < D ≤ 219.08

+1.6
-0.8

219.08 < D ≤ 457.2

+2.4
-0.8

두  께

t < 2

± 0.2

모든치수

-12.5%

t ≥ 2

± 10%

길  이

지정 길이보다 길어야 한다

모든치수
(DEFINTE CUT LENGTH)

+6
0

직 진 도

실용상 곧아야 한다.

실용상 곧아야 한다