Bimetallic thermostat temperature control material is bimetallic,Bimetallic product quality directly affects the thermostat life and accuracy,The parameters of the bimetallic are as follows:
1, the ratio of bending K: Nominal value, allowable deviation (± 5%, ± 7%, ± 8%, ± 10%)
2, resistivity ρ: Nominal value and allowable deviation (± 5%, ± 10%)
3, the bond strength test: repeated bending strength test
4, the linear temperature range ℃ (-20 ~ 350), allowing the use of temperature range ℃ (-70 ~ 500)
5, the elastic modulus EMpa is not less than (113000 ~ 152000)
6, density g / cm3

Than bending K			Resistivity ρ		Bonding strength test				Reference
Nominal value 10-6/℃ (20。-130)	Tolerance		Nominal value ｕΩ·cm (20+50℃)	Tolerance	I	II			Linear temperature Range ℃	Allowed temperature range ℃	Elastic modulus Mpa not less than	density g/cm3
	I level	II level			repeatedly Bending off	Twist	repeatedly Bending off	bending
20.8	±5%	±7%	113	±5%	Repeated bending to fracture, the fracture may not have stratification	Shall not appear crack, crack	Not less than three times shall not crack	Shall not be cracked	-20~150	-70~200	113000	7.7
14.5			140						-20~150	-70~200	113000	7.5
15.3			125						-20~200	-70~250	122000	7.6
14.3			80.0						-30~180	-70~350	147000	8.2
13.8			80.0						-50~100	-70~350	147000	8.1
15.0			80.0						-20~180	-70~350	147000	8.1
10			17.0	±10%					-20~180	-70~400	152000	8.4
10.8			70.0						-20~350	-70~500	152000	8.0
7.8	±8%	±10%	56.0						0~400	-70~500	152000	8.2
13.8			6.0	±5%					-20~150	-70~200	122000	8.3
13.5	±5%	±7%	6.0						-20~150	-70~200	122000	8.3
13.9			9.0	±10%					-20~150	-70~200	122000	8.2
13.6			9.0						-20~150	-70~200	122000	8.2
14.9			11.0						-20~150	-70~200	122000	8.2
14.2			11.0						-20~150	-70~200	122000	8.2
14.9			17.0						-20~150	-70~200	122000	8.2
14.2			17.0						-20~150	-70~200	122000	8.2
20.8	±5%	±7%	113	±5%					-20~150	-70~200	113000	7.7
14.5			140						-20~150	-70~200	113000	7.5
15.3			125						-20~200	-70~250	122000	7.6
14.3			78.0						-30~180	-70~350	147000	8.2
13.8			80.0						-50~100	-70~350	147000	8.1
15.0			80.0						-20~180	-70~350	147000	8.1
10			17.0	±10%					-20~180	-70~400	152000	8.4
10.8			70.0						-20~350	-70~500	152000	8.0
7.8	±8%	±10%	56.0						0~400	-70~500	152000	8.2
13.8			6.0	±5%					-20~150	-70~200	122000	8.3
13.5	±5%	±7%	6.0						-20~150	-70~200	122000	8.3
13.9			9.0	±10%					-20~150	-70~200	122000	8.2
13.6			9.0						-20~150	-70~200	122000	8.2
14.9			11.0						-20~150	-70~200	122000	8.2
14.2			11.0						-20~150	-70~200	122000	8.2
14.9			17.0						-20~150	-70~200	122000	8.2
14.2			17.0						-20~150	-70~200	122000	8.2