Comparison of Metals & Materials – Prestige Casting, Inc.

Comparison of Metals

MATERIALS	SPECIFIC GRAVITY	LBS./CU. IN.
Metals
Magnesium AZ-91B-ingot	1.81	0.0653
Aluminum SAE-306 (380-1% Zinc)-ingot	2.77	0.100
Aluminum SAE-309 (360)-ingot	2.64	0.0953
Zinc SAE-903 (‘Zamac’ 3)-ingot	6.6	0.238
Brass-Yellow (#403)-ingot	8.5	0.307
Brass-85/5/5/5 (#115)-ingot	8.75	0.316
Steel-CR Alloy-strip	7.85	0.283
Steel-Dwg. Qual.-sheet	7.85	0.283
Steel-Stainless 304-bar	7.92	0.286
Iron-Pig, basic-pig	7.1	0.256
Plastics
Polyester (thermoplastic)	1.31	0.0473
Polystyrene–General Purpose	1.06	0.0383
Polypropylene Resin	0.905	0.0327
Polyvinyl Chloride (rigid)	1.20-1.37	0.0433-0.0494
Styrene Acrylonitrile (Copolymer)	1.07	0.0386
ABS Resins	1.04-1.06	0.0375-0.0383
Modified Acrylic Resin-Rubber	1.12-1.18	0.0404-0.0426
Cellulose Acetate Butyrate	1.19	0.0430
Modified Polyphenylene Oxide	1.06-1.10	0.0383-0.0397
Polycarbonate Resin	1.20	0.0433
Polysulfane	1.24	0.0448

Comparison of Materials

MATERIALS	SPECIFIC GRAVITY	LBS./CU. IN.
Polystyrene
20% Reinforced	1.20	0.0432
30% Reinforced	1.28	0.0462
Polypropylene
20%	1.04	0.0375
30%	1.13	0.0407
Styrene Acrylonitrile
20%	1.22	0.0440
30%	1.31	0.0472
ABS
20%	1.21-1.23	0.0439
30%	1.28	0.0462
Polyester (thermoplastic)
30%	1.52	0.0549
Polyphenylene Oxide (modified)
20%	1.21
30%	1.27	0.0458
Polycarbonate
20%	1.34	0.0484
30%	1.43	0.0516
Polysulfane
20%	1.38	0.0498
30%	1.45	0.0523