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corundum protector pipes for thermal

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Keyword: alumina pipes, ceramic pipes, corundum pipes, corundum protector tubes

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DKJL CO.,LTD.

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Product name	corundum protector pipes for thermal	Certification	-
Category	Home & Kitchen	Ingredients	-
Keyword	alumina pipes , ceramic pipes , corundum pipes , corundum protector tubes	Unit Size	-
Brand name	DKJL	Unit Weigh	-
origin		Stock	-
Supply type	-	HS code	-

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%
Rupture strength		>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 1600C 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/1600C
Breakdown voltage		20kv/cm
Expansion coefficient		8*10(-8)
Temperature for use		Long-term: 1600C Short-term: 1800C
Chill and abrupt heat		1500C~room temperature not cracking thrice.

DKJL CO.,LTD.

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Address: 606 Hengrun Center,West Road,Beisanhuan,Haidian District,Beijing,China

Company introduction: DKJL Co., Ltd is a comprehensive trading company registered in Beijing, China. The company is strategically located at the centre of Beijing Zhongguancun, which is also known as the Silicon Valley of China. Since the establishment in 2001, the company has achieved major developments in both domestic and international markets. The company has been focusing on both special products development and multi-dimensional products advancement; by adopting this strategy we have achieved excellent performance in international import and export market, which subsequently place itself as the core business of the company.