1.High strength but low weight. 2.Lower thermal conductivity. 3.Good durability,can bear high temperature withing the limit.

 Refractory calcium silicate pipe :

1.High strength but low weight.2.Lower thermal conductivity.3.Good durability,can bear high temperature within the limit of continuous heat load.

4.Alumina silicate pipe

Application of refractory silicate pipe:

This products are used as thermal insulation in power stations,petrochemical plants,petroleum refineries,heat distributing systems and other process industries. The physical properties are as follows:

Physical properties of refractory calcium silicate pipe:

Item	Unit	Data
Density	Kg/m3	≤220
Compressive Strength	Mpa	≥0.688
Flexural strength(min.)	Mpa	≥0.35
Linear shrinkage(max)	%	≤2.0
Thermal conductivity(max.)	w/m.k	≤0.065
Service temp.(max)	°C	650-1000

Physical properties	Unit	Company Standard			National Institute of Standards
		A-200		A-230
Volume density	Kg/	200(±10%)		230(±10%)	200230
Bending strength	Mpa	0.45		0.51	0.40
Compressive strength	Mpa	0.52		0.56	0.4
Thermal conductivity	W/m.k	0.0500.00011t		0.0530.00011t	0.055
The maximum temperature		1050		1050	1050
Line shrinkage	%	1.5(1050,3hrs)	1.5(1050,16hrs)	1.5(1050,16hrs)	1.5(1050,16hrs

Refractory alumina silicate pipe