A193 Grade B8M Mechanical Properties

Grade	Size	Tensile ksi, min	Yield, ksi, min	Elong, %, min	RA % min	HBW	HRC
B8M Class 1	All	75	30	30	50	223 max	96 (HRB) max
B8M Class 2	Up to 3/4	110	95	15	45	321 max	35 max
	7/8 – 1	100	80	20	45
	1-1/8 – 1-1/4	95	65	25	45
	1-3/8 – 1-1/2	90	50	30	45