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Tungsten Copper Standards
WCu, WAg alloy standards for some countrys and companys:
| Grades | Standards | Density (>) | Hardness | Electrical Resistivity /μΩ﹒cm | Conductivity/%IACS |
| W50Cu | Chinese National Standard American ASTM standard JPMA standards in Japan Germany Doduco Company Tungsten Corporation Ltd. of Japan Austria Plansee Company |
11.85 11.7 12.5 12.2 12.0 11.6 |
115HB 69~83HRB 60~80HRB 110~140HV 78HRB 120HRB |
3.2 2.7~4.5 3.1~3.2 3.8~4.5 3.1 2.6 |
54 38~64 55~75 38~45 55 58 |
| W40Cu | Chinese National Standard American ASTM standard JPMA standards in Japan Germany Doduco Company Tungsten Corporation Ltd. of Japan Austria Plansee Company |
12.75 12.7 13.4 13.2 13.2 12.7 |
140HB 77~90HRB 70~85HRB 140~170HV 88HRB 140HRB |
3.7 3.0~5.0 2.65~3.45 4.2~5.0 3.4 3.3 |
47 34~57 50~65 34~41 50 51 |
| W30Cu | Chinese National Standard American ASTM standard JPMA standards in Japan Germany Doduco Company Mitsubishi Corporation Austria Plansee Company JMM Company UK |
13.8 13.7 14.5 14.3 14.2 14.0 13.6 |
175HB 85~98HRB 85~100HRB 160~200HV 210HB 150HB 160HV |
4.1 3.3~5.9 3.1~4.3 4.5~5.6 3.6 4.0 5.3 |
42 29~52 40~55 31~38 48 43 33 |
| W20Cu | Chinese National Standard American ASTM standard JPMA standards in Japan Germany Doduco Company Mitsubishi Corporation Austria Plansee Company JMM Company UK |
15.0 15.0 15.6 15.6 15.6 15.4 15.2 |
220HB 94~106HRB 95~115HRB 210~250HV 99~102HRB 180HB 240HV |
5.0 3.8~6.9 3.85~5.76 5.0~6.3 4.31~4.55 5.0 6.17 |
34 25~45 30~45 27~34 38~40 35 28 |
| W50Ag | Chinese National Standard American ASTM standard JPMA standards in Japan |
13.15 13.85 13.8 |
105HB 55~60HRB 55~80HRB |
3.0 2.5~2.97 2.46~2.97 |
57 58~68 58~70 |
| W40Ag | Chinese National Standard JPMA standards in Japan Tungsten Corporation Ltd. of Japan |
14.0 14.6 14.2 |
125HB 50~60HRB 55~80HRB |
3.4 2.8~3.4 3.0 |
51 50~60 57 |
| W35Ag | Chinese National Standard American ASTM standard JPMA standards in Japan Tungsten Corporation Ltd. of Japan Austria Plansee Company |
14.5 15.12 15.1 14.6 14.0 |
135HB 73~86HRB 75~95HRB 83HRB 110HB |
3.6 2.9~3.8 2.97~3.75 3.1 3.7 |
48 45~60 46~58 55 47 |
| W30Ag | Chinese National Standard American ASTM standard JPMA standards in Japan Germany Doduco Company JMM Company UK Tungsten Corporation Ltd. of Japan |
14.9 15.74 15.6 15.4 15.6 15.1 |
150HB 105HRB 100HRB 190HV 220HB 205HB |
3.8 3.2 3.2 3.3 4.0 3.31 |
45 40~54 42~54 34~45 43 51 |
| W20Ag | Chinese National Standard JPMA standards in Japan Germany Doduco Company Tungsten Corporation Ltd. of Japan Austria Plansee Company |
16.1 16.6 16.4 16.2 15.6 |
180HB 90~110HRB 150~230HRB 103HRB 180HB |
4.6 4.5 3.3~4.6 3.8 5.0 |
37 38~50 37~52 45 35 |
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