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Name：Flap powder contacts&Electrical contact Tips
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Class：Contacts
Description
Copper-Graphite

Characteristic:
Copper-Graphite (CuC) has better in anti-welding and resistant arc erosion.

Physical Properties
Mark Density g/cm3 Resistance Rate μΩ.㎝ Hardness MPa
CuC(5) ≥7.0 ≤3.40 HB≥392

Silver-Tungsten

Characteristic:
Silver-Tungsten(AgW)has excellent in arc resistant erosion, anti-welding and electric conductivity, Silver-Tungsten Contact materials are produced by an improved infiltration technique and powder metallurgical method. There are silver at base convenient for facilitate brazing.

Physical Properties
Mark Density g/cm3 Resistance Rate μΩ.㎝ Hardness MPa
AgW(30) ≥11.75 ≤2.30 HB≥735
AgW(40) ≥12.40 ≤2.60 HB≥833
AgW(50) ≥13.15 ≤3.00 HB≥1029
AgW(55) ≥13.55 ≤3.20 HB≥1127
AgW(60) ≥14.00 ≤3.40 HB≥1225
AgW(65) ≥14.50 ≤3.60 HB≥1323
AgW(70) ≥14.90 ≤3.80 HB≥1470
AgW(75) ≥15.40 ≤4.20 HB≥1617
AgW(80) ≥16.10 ≤4.60 HB≥1764

Silver-Tungsten Carbide

Characteristic:
The Silver-tungsten Carbide(AgW)Contact materials provide good resistance to arc erosion and welding. In addition,it possesses more stable contact resistance due to it’s better resistance to oxidation. And the contacts combine small-volume, light weight, silver economized etc.

Physical Properties
Mark Density g/cm3 Resistance Rate μΩ.㎝ Hardness MPa
AgWC(12)C(3) ≥9.40 ≤3.40 HB≥550
AgWC(12)NiC ≥10.30 ≤2.80 HB≥600
AgWC(12) ≥10.40 ≤2.20 HB≥600
AgWC(17)C(3) ≥9.55 ≤3.70 HB≥680
AgWC(20)C(2) ≥10.00 ≤3.40 HB≥735

Silver-Graphite

Characteristic:
The Silver-Graphite (AgC) possesses good breaking capacity and resistivity against welding, and low-stable contact resistance. The method of production are sintering and repressing process(P), sintering and extruding process(Q).

Physical Properties：
Mark Density g/cm3 Resistance Rate μΩ.㎝ Hardness MPa
AgC(3)Q ≥9.10 ≤2.20 HB≥343
AgC(5)Q ≥8.60 ≤2.50 HB≥343
AgC(3)P ≥9.10 ≤2.40 HB≥392
AgC(5)P ≥8.60 ≤3.20 HB≥392

Copper-Tungsten

Characteristic:
Copper-Tungsten(CuW)Contact Material provides good resistances to arc erosion and high strength. Through the welding or whole sintering integral contact, mainly used for high voltage circuit breaker, load switch, transformer tap-changer and other high-voltage electrical appliances in the switch.

Physical Properties
Mark Density g/cm3 Resistance Rate μΩ.㎝ Hardness MPa
CuW(50) ≥11.85 ≤3.20 HB≥1127
CuW(55) ≥12.30 ≤3.50 HB≥1225
CuW(60) ≥12.75 ≤3.70 HB≥1372
CuW(65) ≥13.30 ≤3.90 HB≥1519
CuW(70) ≥13.80 ≤4.10 HB≥1715
CuW(75) ≥14.50 ≤4.50 HB≥1911
CuW(80) ≥15.15 ≤5.00 HB≥2156
CuW(85) ≥15.90 ≤5.70 HB≥2352
CuW(90) ≥16.75 ≤6.50 HB≥2548

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NINGBO SHENLE CHENGXIN ELECTRICAL ENGINEERING ALLOY CO.,LTD.
Tel: 0086-574-83035290
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NINGBO SHENLE CHENGXIN ELECTRICAL ENGINEERING ALLOY CO.,LTD.
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