Contact Material

Properties

Main Applications

Delivery Forms

AgSnO2(8-12)

AgSnO2 is a nontoxic material, compared to AgCdO, and has very good and stable welding resistance and arc erosion resistance. It has better erosion resistance than AgCdO in the current range of 500 ~ 3000 A, and shows better welding resistance than AgCdO and AgNi under lamp load and capacitive load. While under AC resistive load, the contact resistance of AgSnO2 is a little higher than that of AgCdO, but it shows low and stable resistance at DC lamp / motor loads (such as automobile relays). Under DC condition, AgSnO2 has less material transfer compared to AgCdO.

Widely used to AC contactors (such as CJ20, CJ40 and 3TF series) of large or medium capacity, and AC switches of large power (more than 50kW), DC contactors, AC/DC power relays, automobile equipment, and low-voltage circuit breakers of medium/small capacity.

Wire, tip or rivet

Processing Method

Product Form

Product State

Tensile Strength MPa

Elongation Rate
%

Density g/cm³

Resistivity μΩ·cm

Hardness (HV)

Atomization, sintering and extrusion

Wire

Annealed

280~310

25

9.85

2.20

85~95

Atomization, sintering and extrusion

Wire

Annealed

270~290

22

9.85

2.20

80~90

Powder mixing, sintering and extrusion

Wire

Semi-hard

220~230

23

9.85

2.15

70~75

Powder mixing, sintering and extrusion

Wire

Semi-hard

220~250

20

9.80

2.25

73~78

Powder mixing, sintering and extrusion

Wire

Semi-hard

220~250

18

9.80

2.25

73~78

Powder mixing, sintering and extrusion

Wire

Semi-hard

220~250

15

9.80

2.25

73~78

Internal oxidazation & extrusion

Wire

Annealed

260~290

25

9.80

2.20

80~90

Internal oxidazation & extrusion

Wire

Annealed

270~300

18

9.75

2.30

90~100

Internal oxidazation

Tip

/

/

/

9.90

3.20

85

Powder mixing, sintering and extrusion

Tip

Annealed

/

/

9.80

2.25

70~75

Powder mixing, sintering and extrusion

Tip

Annealed

/

/

9.80

2.25

70~75