Gunmetal, a time-tested Copper alloy, continues to remain indispensable in engineering and industrial applications, especially for its corrosion resistance, machinability, and pressure-handling capacity. At our Indian Gunmetal foundry, we specialize in manufacturing Gunmetal castings, machined parts, and pressure-tight fittings for global clients across marine, plumbing, industrial, and steam-handling sectors.
Gunmetal Casting, Gunmetal Parts, Gunmetal Fittings from Indian Gunmetal Foundry
Premium-Grade Solutions for Marine, Steam, Plumbing & Industrial Use
We are one of the leading manufacturers and exporters of Gunmetal parts and fittings from India. We have been supplying precision-cast and machined Gunmetal components to the global market for many decades. With strong technical expertise, a modern foundry setup, and consistent metallurgy, we serve OEMs, stockists, and EPC contractors worldwide. Our Gunmetal castings conform to Indian (IS), British (BS), American (ASTM), and DIN standards, and are trusted for performance in critical applications.
What is Gunmetal?
Gunmetal, traditionally composed of Copper (85%), Tin (5%), Zinc (5%), and Lead (5%), is a type of Red Brass or LG2 bronze known for its:
- Excellent castability
- Corrosion resistance (especially to steam, saltwater, and brine)
- Moderate strength and great machinability
- Low-friction wear resistance
It is ideal for producing parts that require sealing under pressure or working in harsh environments.
Gunmetal Casting Process in India
Our Gunmetal foundry employs a variety of casting methods depending on the size, complexity, and performance demands:
1. Sand Casting:
Used for heavy and large Gunmetal parts such as valve bodies, pump casings, and flanges.
2. Shell Molding:
Offers better surface finish and dimensional accuracy — ideal for valve fittings and smaller precision parts.
3. Centrifugal Casting:
Preferred for bushings, sleeves, and bearing shells to avoid porosity and ensure uniform wall density.
Typical Gunmetal Products We Manufacture
| Product Type | Applications |
|---|---|
| Gunmetal Valve Components | Steam valves, gate valves, globe valves |
| Gunmetal Bushes & Bearings | Pumps, compressors, conveyor systems |
| Gunmetal Fittings | Plumbing, water lines, instrumentation |
| Flanges & Pipe Adaptors | Industrial flow systems, oil & gas |
| Gunmetal Gland Packs & Stems | Marine pumps, stuffing boxes |
| Custom-CNC Machined Parts | As per drawing for OEM applications |
Material Grades Offered
| Standard | Grade | Composition (Approx.) |
|---|---|---|
| IS 318 | LTB2 / LG2 | 85Cu – 5Sn – 5Zn – 5Pb |
| BS 1400 | LG2 | Equivalent to above |
| ASTM B62 | C83600 | American bronze grade |
| DIN 1705 | RG5 | German standard Gunmetal |
We also offer lead-free or low-lead options to comply with ROHS and European drinking water regulations.
Industries Served
- Marine Engineering
- Water Treatment Plants
- Steam Distribution
- Chemical & Fertilizer Plants
- Oil & Gas Infrastructure
- Power Generation (Boilers, Pumps)
- Plumbing & Sanitary Fittings
Finish, Tolerances & Quality Control
- Surface Finish: As-cast or machined, optional shot-blasting
- Machining Tolerance: As per ISO 2768 or customer drawing
- Pressure Testing: Hydrostatic or pneumatic test on demand
- Quality Assurance: Spectro analysis, NDT (on request), machining inspection
Why Choose Our Indian Gunmetal Foundry?
- 30+ years’ export experience
- Fully integrated facility with casting + machining
- Small and large batch flexibility
- Custom label & export packaging
- Competitive pricing & faster lead time (4–6 weeks typical)
- Dedicated support team for documentation, samples, and compliance
Customer Testimonial
“We’ve sourced Gunmetal flanges and valves from this Indian foundry for 5 years now. The product quality is consistent, machining is precise, and packaging is export-ready. Their ability to handle both small batches and bulk orders makes them a reliable supplier.”
— Andrew T., Purchasing Manager, Texas, USA
Related Terms & Long-Tail Keywords
- Gunmetal Valve Castings India
- LG2 Bronze Fittings Manufacturer
- Copper Alloy Sand Castings
- Marine Bronze Valve Components
- Gunmetal Bushes Exporter India
- Gunmetal Threaded Fittings Foundry
- ASTM B62 C83600 Bronze Casting
- High-Pressure Bronze Components
Call to Action
📩 Get in Touch for a Quote or Sample!
Email us your drawing or inquiry for Gunmetal casting components, fittings, or custom parts.
We ship worldwide from India with full documentation and technical support.
