Ductile Iron

Property	Minimum Value (S.I.)	Maximum Value (S.I.)	Units (S.I.)	Minimum Value (Imp.)	Maximum Value (Imp.)	Units (Imp.)
Atomic Volume (average)	0.0077	0.008	m3/kmol	469.883	488.19	in3/kmol
Density	7.05	7.25	Mg/m3	440.117	452.603	lb/ft3
Energy Content	60	72	MJ/kg	6500.32	7800.38	kcal/lb
Bulk Modulus	119	137	GPa	17.2595	19.8702	106 psi
Compressive Strength	229	799	MPa	33.2136	115.885	ksi
Ductility	0.02	0.29		0.02	0.29	NULL
Elastic Limit	215	790	MPa	31.1831	114.58	ksi
Endurance Limit	180	330	MPa	26.1068	47.8624	ksi
Fracture Toughness	22	54	MPa.m1/2	20.021	49.1425	ksi.in1/2
Hardness	1150	3200	MPa	166.793	464.121	ksi
Loss Coefficient	0.0006	0.0022		0.0006	0.0022	NULL
Modulus of Rupture	215	790	MPa	31.1831	114.58	ksi
Poisson's Ratio	0.27	0.28		0.27	0.28	NULL
Shear Modulus	64	71	GPa	9.28241	10.2977	106 psi
Tensile Strength	350	1000	MPa	50.7632	145.038	ksi
Young's Modulus	165	180	GPa	23.9312	26.1068	106 psi
Glass Temperature			K			°F
Latent Heat of Fusion	270	275	kJ/kg	116.079	118.228	BTU/lb
Maximum Service Temperature	623	723	K	661.73	841.73	°F
Melting Point	1403	1523	K	2065.73	2281.73	°F
Minimum Service Temperature	123	393	K	-238.27	247.73	°F
Specific Heat	460	495	J/kg.K	0.355975	0.38306	BTU/lb.F
Thermal Conductivity	29	44	W/m.K	54.289	82.3695	BTU.ft/h.ft2.F
Thermal Expansion	10	12.5	10-6/K	18	22.5	10-6/°F
Breakdown Potential			MV/m			V/mil
Dielectric Constant						NULL
Resistivity	49	56	10-8 ohm.m	49	56	10-8 ohm.m

Environmental Properties
Resistance Factors 1=Poor 5=Excellent
Flammability	5
Fresh Water	4
Organic Solvents	5
Oxidation at 500C	4
Sea Water	3
Strong Acid	2
Strong Alkalis	3
UV	5
Wear	5
Weak Acid	4
Weak Alkalis	5