Gun Metal Casting
Chemical Composition |
|
LTB-1 |
Standard: IS: 318-1981 |
Copper Alloys |
CU |
SN |
PB |
ZN |
FE |
NI |
AL |
SI |
SB |
Impurities |
LTB-1 |
Rem. |
6-8 |
2.5-3.5 |
1.5-3 |
0.3 |
2 |
0.01 |
0.01 |
0.3 |
0.7 |
|
|
LTB-2 |
Standard: IS: 318-1981 |
Copper Alloys |
CU |
SN |
PB |
ZN |
FE |
NI |
AL |
SI |
SB |
Impurities |
LTB-2 |
Rem. |
4-6 |
4-6 |
4-6 |
0.35 |
2 |
0.01 |
0.02 |
0.4 |
0.8 |
|
|
LG-1 |
Standard: BS 1400 |
Copper Alloys |
CU |
SN |
PB |
ZN |
FE |
NI |
P |
AL |
SI |
SB |
S |
BI |
Impurities |
LG-1 |
Rem. |
2-3.5 |
4-6 |
7-9.5 |
0.5 |
2 |
0.03 |
0.01 |
0.02 |
0.25 |
0.08 |
0.1 |
1 |
|
|
LG-2 |
Standard: BS 1400 |
Copper Alloys |
CU |
SN |
PB |
ZN |
FE |
NI |
AL |
SI |
SB |
BI |
Impurities |
LG-2 |
Rem. |
4-6 |
4-6 |
4-6 |
0.5 |
2 |
0.01 |
0.02 |
|
0.05 |
0.8 |
|
|
LG-4 |
Standard: BS 1400 |
Copper Alloys |
CU |
SN |
PB |
ZN |
FE |
NI |
AL |
SI |
SB |
BI |
Impurities |
LG-4 |
Rem. |
6-8.05 |
2.5-3.5 |
1.5-3 |
0.2 |
2 |
0.01 |
0.01 |
0.25 |
0.05 |
0.7 |
|
|
RG-5 |
Standard: DIN |
Copper Alloys |
CU |
SN |
PB |
ZN |
FE |
NI |
P |
AL |
MN |
SI |
SB |
S |
RG-5 |
84-86 |
4-6 |
4-6 |
4-6 |
0.2 |
2 |
0.03 |
0.01 |
0.1 |
0.01 |
0.25 |
0.06 |
|
|
RG-7 |
Standard: DIN |
Copper Alloys |
CU |
SN |
PB |
ZN |
FE |
NI |
P |
AL |
MN |
SI |
SB |
S |
RG-7 |
83-85 |
6.8-8 |
5.3-7 |
3.3-5 |
0.2 |
1-1.5 |
0.03 |
0.01 |
0.1 |
0.01 |
0.25 |
0.03 |
|
|
BC-1 |
Standard: JIS |
Copper Alloys |
CU |
SN |
PB |
ZN |
FE |
NI |
P |
AL |
SI |
SB |
BC-1 |
79-83 |
2 - 4 |
3-7 |
8-12 |
0.35 |
1 |
0.05 |
0.01 |
0.01 |
0.2 |
|
|
BC-2 |
Standard: JIS |
Copper Alloys |
CU |
SN |
PB |
ZN |
FE |
NI |
P |
AL |
SI |
SB |
BC-2 |
86-90 |
7 - 9 |
0-1 |
3-5 |
0.2 |
1 |
0.05 |
0.01 |
0.01 |
0.2 |
|
|
BC-6 |
Standard: JIS |
Copper Alloys |
CU |
SN |
PB |
ZN |
FE |
NI |
P |
AL |
SI |
SB |
BC-6 |
83 - 87 |
4 - 6 |
4-6 |
4-6 |
0.3 |
1 |
0.05 |
0.01 |
0.01 |
0.2 |
|
|
BC-7 |
Standard: JIS |
Copper Alloys |
CU |
SN |
PB |
ZN |
FE |
NI |
P |
AL |
SI |
SB |
BC-7 |
86-90 |
5 - 7 |
1-3 |
3-5 |
0.2 |
1 |
0.05 |
0.01 |
0.01 |
0.2 |
|
|
C83600 |
Standard: ASTM |
Copper Alloys |
CU |
SN |
PB |
ZN |
FE |
NI |
P |
AL |
SI |
SB |
S |
C83600 |
84 - 86 |
4.3 - 6 |
4 - 5.7 |
4.3 - 6 |
0.25 |
1 |
0.05 |
0.005 |
0.005 |
0.25 |
0.08 |
|
|
C84400 |
Standard: ASTM |
Copper Alloys |
CU |
SN |
PB |
ZN |
FE |
NI |
P |
AL |
SI |
SB |
S |
C84400 |
79 - 82 |
2.5-3.5 |
6-8 |
7-10 |
0.4 |
0.8 |
0.02 |
0.005 |
0.005 |
0.25 |
0.08 |
|
|
Physical Properties |
|
Gunmetal
|
Grade B.S. 1400: 1985 |
Nominal Composition |
2% PS N/mm Min |
Tensile Strength N/mm Min |
Elongation % Min |
Brinell Hardness Min |
G1/BC3 |
88/10/2 |
|
245 |
15 |
|
G1/BC2 |
88/8/4 |
|
245 |
20 |
|
LG1 |
88/3/9/5 |
85 |
180 |
15 |
60 |
LG2 |
85/5/5/5 |
90 |
200 |
13 |
60 |
LG3 |
86/7/5/2 |
|
|
|
|
LG4 |
88/7/2/3 |
130 |
230 |
14 |
65 |
BC1 |
82/3/10/5 |
|
165 |
15 |
|
BC6 |
85/5/5/5 |
|
215 |
18 |
|
|
|
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