표면조도 비교표(Surface roughness comparison table)

* 표면조도 비교표(Surface roughness comparison table)

구분(區分)

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Korea (KS) Japan (JIS)

Rmax(µm)

0.1S

0.2S

0.4S

0.8S

1.6S

3.2S

6.3S

12.5S

25S

50S

100S

America (ASA)

Rms (µin)

1

2

4

8

16

32

63

125

250

500

1000

France Italy

Ra (µm)

0.025

0.05

0.1

0.2

0.4

0.8

1.6

3.2

6.3

12.5

25

Germany (DIN)

-

N1

N2

N3

N4

N5

N6

N7

N8

N9

N10

N11

Russia

Rz

0.1Z

0.2Z

0.4Z

0.8Z

1.6Z

3.2Z

6.3Z

12.5Z

25Z

50Z

100Z

Note : Rmax (최대높이) : maximum height          Rz (십점평균거칠기) : ten point average roughness          Ra (중심선평균거칠기) : centerline average height