Please be informed that our operating hours on Hari Raya Puasa will be from 9:00 AM to 3:00 PM. Our office will be closed on 3 April 2026 in observance of the Good Friday holiday. More details.
Notice of End of Sales for Economy Series Pneumatic Equipment Category. More details.

Physical Properties of Materials

Physical Properties of Metallic Materials

Material	Specific gravity	Thermal expansion coefficient	Modulus of longitudinal elasticity
Material	Specific gravity	×10−⁶/℃	N/mm²	｛Kgf/mm²｝
Mild steel	7.85	11.7	205800	｛21000｝
NAK80	7.8	12.5	200900	｛20500｝
SKD11	7.85	11.7	205800	｛21000｝
SKD61	7.75	10.8	205800	｛21000｝
SKH51	8.2	10.1	218540	｛22300｝
Carbide V30	14.1	6	548800	｛56000｝
Carbide V40	13.9	6	529200	｛54000｝
Cast iron	7.3	9.2～11.8	73500～102900	｛7500～10500｝
SUS304	8.0	17.3	193060	｛19700｝
SUS440C	7.78	10.2	199920	｛20400｝
Oxygen-free copper C1020	8.9	17.6	114660	｛11700｝
6/4 brass C2801	8.4	20.8	100940	｛10300｝
Beryllium copper C1720	8.3	17.1	127400	｛13000｝
Aluminum A1100	2.7	23.6	67620	｛6900｝
Duralumin A7075	2.8	23.6	70560	｛7200｝
Titanium (Ti)	4.5	8.4	103880	｛10600｝