Yes, many Jamnagar workshops also machine stainless steel and aluminium, along with copper and mild steel. The same CNC and sliding-head lathes can cut all of these metals.
Being able to cut a metal is not the same as being good at it. Brass is one of the easiest metals to machine. Stainless steel is one of the harder ones. A shop that excels at brass may struggle with stainless tolerances, finish and tool life.
How the metals differ on the machine
- Stainless steel work-hardens, runs hot and wears tools fast, so it needs rigid machines, sharp tools and steady coolant.
- Free-machining stainless grades, such as 303, cut more easily than 304 or 316, but they resist corrosion less well.
- Aluminium cuts fast but can smear and form a built-up edge on tools, which spoils finish and size.
- Aluminium is soft and scratches easily, so handling and packing need more care.
- Copper is gummy and harder to machine cleanly than brass.
What to check before you order
Ask the supplier for parts it has already made in your metal and grade, ideally with a similar shape and tolerance. Then check these points:
- The share of the shop's work that is in your metal, since an occasional job is a weaker sign than a regular one.
- Where the bar comes from, and whether each lot comes with a mill test certificate.
- Whether separate tools and coolant are used for stainless, so brass chips do not contaminate the surface.
- Who does the finishing, such as passivation for stainless or anodising for aluminium, and to which standard.
- How the shop measures dimensions that move with temperature, especially on aluminium.
Finishing and material risks
Stainless parts often need passivation to restore corrosion resistance after machining, usually to a standard such as ASTM A967. Without it, parts can show rust spots from free iron on the surface.
Aluminium parts are often anodised, and anodising is usually done by a specialist unit outside the turning shop. Ask how coating thickness is checked, and confirm the alloy suits anodising.
Grade substitution is a real risk. A 304 bar marked as 316 looks the same. For parts where corrosion resistance matters, have a sample from each lot tested, and read reading a lab certificate before you accept a report.
When to look elsewhere
For tight-tolerance stainless parts, large aluminium parts or parts that need extensive milling, another Gujarat cluster, such as Rajkot or Ahmedabad, may have better-suited plants. The general check is the same, as described in how to check a factory's machining capability.
Next step
We find and audit manufacturers that already make parts like yours in your metal, and have lots tested. To find the right shop for a mixed range, book a free sourcing review.