Lead-free easy-cutting white copper alloy materials are jointly developed by Zhejiang Kanghua Copper Co., Ltd. and some universities. Over two years of batch production, the materials are tested and reported by quality test and inspection institutes and users to have excellent comprehensive mechanical and corrosion resistant properties, cold-hot processing formability and cutability, so they have been widely used to manufacture precise components for instrument, medial device, daily necessities and communication fields. Besides, the materials are new environmental protection ones and have been authorized as patent products by the State Intellectual Property Office. In addition, they have filled domestic gap, substituted the imported products and passed the check of technical research project against technical barriers to trade in Zhejiang.   

 Chemical Composition


Free Pb Nickel
Silver Wires & Rods

Chemical Composition:wt%

Cu

Ni+Co

Fe

Mn

Pb

Zn

Other Elements

KH
BZn 18-20-Y

58~63

16.5~19.5

≤0.5

≤0.5

≤0.028

Remain

0.5~1.3

KH
BZn 15-22-Y

58~63

13.5~16.5

≤0.5

≤0.5

≤0.028

Remain

0.5~1.3

 Mechanical Properties


Products

Modality

Tensile Strength(MPa)

Elongation(%)

Hardness

KH
BZn 18-20-Y

Y

425~880

≤20

130~265

KH
BZn 15-22-Y

Y

400~850

≤20

125~260

 
ADD:NO.5 Longshan Rd,Damaiyu,Yuhuan,Zhejiang,China  TEL:0576-87355568 FAX:0576-87355566
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