Standard Grades	Specific Gravity	Specific Resistance (μΩm)	Flexural Strength (MPa)	Shore Hardness (-)	*C.T.E (×10-6/°C)
G140	1.68	9	14.7	23	3.8
	1.7	8.5	15.7	25	3.8
G145	1.7	8.5	14.7	23	3.8
G146	1.68	8.5	12.7	22	3.9

Standard Grades	Thermal Conductivity (W/mK)	Ash Content (%)	Max Grain Size (mm)	Standard Sizes (mm)
G140	139	0.1	1.0	φ700×1000, φ820×1000 φ1000×1000 φ1230×350, 580 φ1400×350
	145	0.1	1.0	500×600×1600 700×700×1600 535×535×2820 770×450×2400 1185×610×1830
G145	145	0.1	3.0	φ700×900, φ820×1000 φ1000×1050 φ1230×350, A580 φ1400×350
G146	145	0.1	3.0	φ400×700 φ528×820 φ680×1000 φ900×1260	×930

Notes

* All properties measured at room temperatures except for C.T.E (R.T to 1000°C) and measured with grain, if not stated otherwise. Flexural strength determined using third point loading.

* C.T.E=Coefficient of thermal expansion

* These properties are typicial average value and not guaranteed

* 1MPa=10.2kgf/cm²

* 1W/mK=0.86kcal/m-h-°C