protection ceramic tube

Name: protection ceramic tube
Brand: Shanghai Kesheng Chinaware Co., Ltd.
Rating: 4.0 (6 reviews)

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Model No. :	KS-DD-122
Brand Name :	kessen

9yrs

Shanghai, Shanghai, China

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Shanghai Kesheng Chinaware Co., Ltd.

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Product description

Specifications Electric appliance industry

Automotive industry

Mechanical industry

Engineer industry

Specifications Mainly Usage: 1. Heat treatment furnace and toughened furnace 2. Inner liner tube and heating tube in electric furnace Features: 1.Great mechanical strength 2.High softening temperature 3.Good resistance to thermal impact 4.Small thermal expansion coefficient 5.Good chill and abrupt heat properties 6. Resistance to acid and alkali corrosion Application: Electric appliance industry
Automotive industry
Mechanical industry
Engineer industry

Chemical competent	Al2O3	≥99.5%
	SiO2	<0.2%
	Fe2O3	<0.1%
Alkaline matter		<0.1%
Density		3.9 g/cm3
Hardness		9 M
Water absorption		<0.1%
Ruptures trength		>2000kg/cm2
Gas tightness		Kept for ten minutes at negative pressure of 1.3Kpa. The pressure drop is less than 0.3Kpa.
Thermal tolerance		Insert the pipe into the furnace at a depth of 20mm. Heat to 1600ºC and maintain for 30 minutes.
Alkali tolerance		In the Na2CO3 solution of 2N concentration, boil for 15 hours with the weight loss not greater than 20mg/dm2.
Volume resistance		>9*10(5) Ω·cm/1600ºC
Breakdown voltage		20kv/cm
Expansion coefficient		8*10(-8)
Temperature for use		Long-term: 1600ºC Short-term: 1800ºC
Chill and abrupt heat		1500ºC~room temperature not cracking thrice.