Physical Properties Group B (Class 10, 11, 12, 13, 14)

Group B Refracotry Metal Composite Materials (Rod and Bar)		Alloy Number	Rockwell Hardness		Electrical Conductivity		Ultimate Compressive Strength¹
					%IACS [Ms/m]
			Minimum		Minimum		ksi [Mpa]
Class 10		N/A2	70 HRB		45% [26]		135 [930]
Class 11		ASTM B702 C1D	94 HRB		40% [23]		160 [1103]
Class 12		ASTM B702 C1E	98 HRB		38% [22]		170 [1172]
Class 13		N/A	69 HRA		30% [17.4]		200 [1379]
Class 14		ASTM B387 Type 360	85 HRB		30% [17.4]		88 [607]

Notes:

1. For information only.

2. Not Assigned.

3. The conductivity and hardness noted may differ from ASTM standards.

Reference:

American Welding Society Publication J1.3