Cast Iron Material Comparison Chart

			Chemical Composition, max (unless range is given), %											Tensile Properties, min (unless range is given)			Charpy
Specification		Grade or Class	C	Si	Mn	S	P	Ni	Cr	Mo	Cu		Hardness max, HB	Tensile Strength min, Ksi	Yield Strength Ksi @ 0.2%	Elongation in 2 in, %	Unnotched min, avg of highest 3
ASTM A159	Gray Iron	G1800	3.40-3.70	2.3-2.8	0.5-0.8	0.150	0.250						187	18
				G2500	3.20-3.50	2.0-2.4	0.6-0.9	0.150	0.200						170-229	25
				G3000	3.10-3.40	1.9-2.3	0.6-0.9	0.150	0.150						187-241	30
				G3500	3.00-3.30	1.8-2.2	0.6-0.9	0.150	0.120						207-255	35
				G4000	3.00-3.30	1.8-2.1	0.7-1.0	0.150	0.100						217-269	40
		ASTM A47	Malleable Iron	32510												50	32.5	10
ASTM A48	Gray Iron	20												20
				25												25
				30												30
				35												35
				40												40
				45												45
				50												50
				55												55
				60												60
ASTM A439	Austenitic Ductile Iron	D-2	3.00	1.50-3.00	0.70-1.25		0.080	18.0-22.0	1.75-2.75				139-202	58	30	8
				D-2B	3.00	1.50-3.00	0.70-1.25		0.080	18.0-22.0	2.75-4.00				148-211	58	30	7
				D-2C	2.90	1.00-3.00	1.80-2.40		0.080	21.0-24.0	0.5				121-171	58	28	20
				D-3	2.60	1.00-2.80	1.00		0.080	28.0-32.0	2.50-3.50				139-202	55	30	6
				D-3A	2.60	1.00-2.80	1.00		0.080	28.0-32.0	1.00-1.50				131-193	55	30	10
				D-4	2.60	5.00-6.00	1.00		0.080	28.0-32.0	4.50-5.50				202-273	60
				D-5	2.40	1.00-2.80	1.00		0.080	34.0-36.0	0.1				131-185	55	30	20
				D-5B	2.40	1.00-2.80	1.00		0.080	34.0-36.0	2.00-3.00				139-193	55	30	6
				D-5S	2.30	4.90-5.50	1.00		0.080	34.0-37.0	1.75-2.25				131-193	65	30	10
ASTM A532	Abrasion Resistant Iron	I-A	2.80-3.60	0.80	2.00	0.150	0.300	3.3-5.0	1.4-4.0	1.0			550 min
				I-B	2.40-3.00	0.80	2.00	0.150	0.300	3.3-5.0	1.4-4.0	1.0			550 min
				I-C	2.50-3.70	0.80	2.00	0.150	0.300	4.0	1.0-2.5	1.0			550 min
				I-D	2.50-3.60	2.00	2.00	0.150	0.100	4.5-7.0	7.0-11.0	1.5			500 min
				II-A	2.00-3.30	1.50	2.00	0.060	0.100	2.5	11.0-14.0	3.0	1.2		550 min
				II-B	2.00-3.30	1.50	2.00	0.060	0.100	2.5	14.0-18.0	3.0	1.2		450 min
				II-D	2.00-3.30	1.00-2.20	2.00	0.060	0.100	2.5	18.0-23.0	3.0	1.2		450 min
				III-A	2.00-3.30	1.50	2.00	0.060	0.100	2.5	23.0-30.0	3.0	1.2		450 min
ASTM A536	Ductile Iron	60-40-18												60	40	18
				65-45-12												65	45	12
				80-55-06												80	55	6
				100-70-03												100	70	3
				120-90-02												120	90	2
ASTM A897	Austempered Ductile Iron	110-70-11												110	70	11	80
				130-90-09												130	90	9	75
				150-110-07												150	110	7	60
				175-125-04												175	125	4	45
				200-155-02												200	155	2	25
				230-185-01												230	185	1	15

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Cast Iron Material Comparison Chart

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