Thermocouple Type S R B Ptrh10 Ptrh13 Ptrh30/6 Platinum Rhodium Wire 1400c 1600c

• Name: Ptrh10 Ptrh13 Ptrh30/6 Platinum Rhodium Wire
• Shape Supply: Wire
• Aplication: Thermocouple Type S R B Wire
• Surface State: Bright, Clean
• Package: PE+Spool
• Transport Package: PE Bag
• Model NO.: SP-PtRh
• Specification: 0.25
• Trademark: OHMALLOY/OEM
• Origin: China
• HS Code: 90259000
• Production Capacity: 30kg Per Month

Product Description

Type S B R Thermocouple Wire

Thermocouple Type	Alloy Code	Chemical Composition (%)		Recommend Long Working Temperature
		Pt (platinum)	Rh (Rhodium )
Type S	SP(Pt90Rh)	90	10	0-1300ºC
	SN(Pt)	100
Type B	BP(Pt70Rh)	70	30	0-1600ºC
	BN(Pt94Rh)	94	6
Type R	RP(Pt87Rh)	87	13	0-1300ºC
	RN(Pt)	100

Thermocouple Type	Long Working TemperatureºC	Max Short Working TemperatureºC
Type S	1300	1600
Type R	1300	1600
Type B	1600	1700

Physical parameter
Item	Pt90Rh	Pt	Pt87Rh	Pt70Rh	Pt94Rh
Melting PointºC	1847	1769	1860	1927	1826
Density(g/cm3)	20.00	21.46	19.61	17.60	20.60
Weight per meter/g (Φ0.5mm)	3.93	4.21	3.82	3.45	4.04
Resistivity at 20ºC/µΩcm	18.9	10.4	19.6	19.0	17.5
Average temperature coefficient of resistance(0-1200ºC)/(10-4/ºC)	14	31	13.3	13.3	20.6
Tensile Strength/MPa	314	137	344	483	276
Elongation Rate(L0=100mm)/%	35	40	35	30	35

Temperature Tolerance
Thermocouple Type	Accuracy Grade	Testing Temperature Range/ºC	Allowable Deviation/ºC
Type S(Type R)	I	0-1100	+/-1
		1100-1600	+/-1+(t-1100)*0.3%
	II	0-600	+/-1.5
		600-1600	+/-0.25%*t
Type B	II	600-1700	+/-0.25%*t
	III	600-800	+/-4
		800-1700	+/-0. 5%*t
"T"is the measuring terminal temperature