Gun Metal
It has a tensile strength of 221 to 310 MPa, a specific gravity of 8.7, a density of 8,719 kg/m3, and a Brinell hardness of 65 to 74.The main alloys used in Gunmetal castings are -LG2, LG3, LG4, PB, LPB, HTB. A material with excellent machining characteristics, good casting qualities, and moderate strength. Particularly suitable where pressure tightness is required.
GRADE |
GRADE BSS / ISS |
NOMINAL COMPOSITION |
TENSILE STRENGTH |
ELONG |
BRINELL HARDNESS |
GUN METAL |
BS1400 G1-C / ISS 306 Grade I |
88 / 10 / 2 |
26 – 34 |
15 – 25 |
70 – 95 |
BS1400 LG1-C / --- |
83 / 3 / 9 / 5 |
17 – 22 |
12 – 15 |
55 – 65 |