Manufacturer & Exporter of Gun metal Casting
Acclaimed in the industry as a leading manufacturers, suppliers and exporters, we are engaged in offering our clients with a wide range of Gun Metal Castings. Our offered castings are designed and developed utilizing optimum – grade metals and allied components that are sourced from reliable vendors of the market. Also we are able to despatch our range on time to the customers.
Gunmetal is also known as Red brass. It is a type of bronze – an alloy of copper (88%), tin (10%), and zinc (2%). Originally used chiefly for making guns, gunmetal was eventually superseded by steel. Gunmetal casts and machines well and is resistant to corrosion from steam and salt water and is used to make steam and hydraulic castings, valves, and gears, and also statues and various small objects, e.g. buttons. It has a tensile strength of 221 to 310 MPa, a specific gravity of 8.7, a density 8,719 kg/m3, and a Brinell Hardness of 65 to 74.
Gunmetal can also mean steel treated to simulate gunmetal bronze. Bushings made of this metal are used in machinery.
Manufacturing Capacity : From 5 kgs. to 1 Ton Single PC.
| 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 | |||
| C 83600 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | ||
| C 84400 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | - |
| 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 | - |