Properties:

1)High thermal and chemical resistance. 
2)Good thermal conductivity. 
3)Low coefficient of thermal expansion. 
4)Minimal wettability to molten metals. 
Grades:
PSK,GSK.

Typical Sizes:
200×200×60(mm) 
200×100×60(mm) 
310×310×150(mm) 
320×200×120(mm) 
320×250×120(mm) 
400×300×200(mm) 
500×310×200(mm) 
490×270×200(mm) 
660×210×140(mm) 
800×300×200(mm) 
400×400×1800(mm) 
500×500×1800(mm) 
650×400×1800(mm) 
800×400×1800×(mm) 
Note:
Other sizes are available on request.

Typical Specifications:

Item	Unit	grade
		P1	P2	P3	P4	G1	G2	G3	G4
Max grain size	mm	0.8	2	4	8	0.8	2	4	8
Bulk density	g/cm3	≥1.70	≥1.58	≥1.57	≥1.56	≥1.73	≥1.70	≥1.69	≥1.68
Specific resistance	μΩ.m	≤8.5	≤10.5	≤11.5	≤12.5	≤8.0	≤8.5	≤8.5	≤9.0
Bending strength	MPa	≥10.0	≥6.0	≥6.5	≥7.0	≥12.0	≥9.0	≥9.5	≥10.0
Compressive strength	MPa	≥24.0	≥20.0	≥17.5	≥16.0	≥31.0	≥30.0	≥29.0	≥30.0
Modulus of elasticity	GPa	≤9.3	≤9.3	≤9.3	≤9.3	≤12.0	≤12.0	≤12.0	≤12.0
C.T.E.(100-600) °C	10-6/°C	≤2.5	≤2.5	≤2.5	≤2.5	≤2.5	≤2.5	≤2.5	≤2.5
Ash content	%	≤0.3	≤0.3	≤0.3	≤0.3	≤0.3	≤0.3	≤0.3	≤0.3