Material Properties

Material	Grey Cast Iron	Nodular Iron	1018 / 1020	SAE 1045	SAE 4140	6061 Aluminum	7075 Aluminum	Titanium
Tensile	30,000	60,000	55,000	90,500	148,000	45,000	83,000	144,000
Thermal Expansion	0 – 6	6.6 – 10.4	5.9 – 7.5	5.9 – 7.5	8 – 8.3	11.7 – 13.7	11.7 – 13.7	4.3 – 7.5
Hardness bhn	100 – 120	150	101	197	302	95	150	320 – 380