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인탈산동  황동 
황동
화학성분
Copper No.
(종류)		 Element(%)
Cu Zn Pb Fe P Sn
C2600 68.5 - 71.5 Remainder 0.005 이하 0.005 이하
C2680 64.0 - 68.0 Remainder 0.005 이하 0.005 이하
C2720 64.0 - 68.0 Remainder
기계적성질
Copper No.
(종류)		 Standard Tensile Strength(N/㎟) Elongation(%) Bennding Test Hardness(0.2 hv)
min to max min Thickness(max) Bend Angle Half Dia Vickers
C2600

C2680

C2720		 O 275 ··· 40 2.0 180˚ Close contact -
1/4H 325 to 410 35 2.0 180˚ T*0.5 75 to 125
1/2H 355 to 440 28 2.0 180˚or W T*1.0 85 to 145
H 410 to 540 - 2.0 180˚or W T*1.5 105 to 175
EH 520 to 620 - - - - 145 to 195
두께허용차
Thickness (대) Strip, Thickness plus and minus in (mm)
200↓ 200-300 300-400 400-700
0.10 to 0.15 0.01 0.02 0.02 0.02
0.15 to 0.25 0.02 0.02 0.02 0.03
0.25 to 0.35 0.02 0.03 0.03 0.04
0.35 to 0.50 0.03 0.03 0.04 0.05
0.50 to 0.80 0.03 0.04 0.04 0.06
0.80 to 1.2 0.04 0.05 0.05 0.07
1.2 to 2.0 0.05 0.06 0.06 0.08
2.0 to 4.0 0.06 0.07 0.08 0.10
Thickness (판) Sheet, Thickness plus and minus in (mm)
400↓ 400-700
0.10 to 0.15 0.02 -
0.15 to 0.25 0.02 0.03
0.25 to 0.35 0.03 0.04
0.35 to 0.50 0.04 0.05
0.50 to 0.80 0.04 0.06
0.80 to 1.2 0.05 0.08
1.2 to 2.0 0.06 0.10
2.0 to 4.0 0.08 0.12
폭허용차
Thickness (대) Strip, Thickness plus and minus in (mm)
100↓ 100-200 200-300 300-600
0.10 to 0.50 0.2 0.2 0.3 0.5
0.50 to 2.0 0.3 0.3 0.4 0.6
2.0 to 4.0 0.5 0.5 0.5 0.6