1.high blowing rate and good safety 2.high adaptability to molten steel components 3.good durability 4.corrosion resistance

physical and chemical index:

Brand		SN-ARC90	SN-AR90
Chemical composition (%)	Al2O3	≥90	≥90
	MgO	---	≤ 6
	Cr2O3	≥ 3	---
Bulk density (g/cm3)	110°C×24h	≥3.20	≥3.20
	1450°C×3h	≥3.15	≥3.15
Crushing strength   (MPa)	110°C×24h	≥60	≥60
	1450°C×3h	≥90	≥90
Modulus of rupture (MPa)	110°C×24h	≥12	≥12
	1450°C×3h	≥18	≥18
Linear change rate (%)	1450°C×3h	+0.1	+0.1
0.3MPa flow (m3/h) according to customers' requirements		26~36	26~36

Ladle refractory porous plug