A Practical Grade
For brackets, handles and fittings exposed to normal indoor conditions, 304 often provides the corrosion resistance needed at a lower material cost than 316. This makes it a practical choice for equipment makers producing many components from the same grade.
At Dexter Steel, we look at how the finished part will be used before suggesting a grade upgrade. Frequent contact with salt or chloride-based cleaners deserves closer attention. A higher-cost grade has value when it addresses that exposure.
For food equipment, 304 is widely used, but the finished design also matters. Smooth surfaces and accessible joints make cleaning easier.
The Surface Matters
A polished bar can be useful for a handle whose outer surface remains visible. For a fitting machined on all sides, that finish will be removed.
The supply condition should suit the production route:
- Exposed hardware: surface marks can add polishing work.
- Turned components: consistent dimensions help control machining allowance.
- Bent or formed parts: cold-worked stock may require more effort to shape.
304 does not harden through conventional heat treatment. For pins or shafts that need a hard wear surface, we would review another grade.
When the Drawing Calls for 304L
304 and 304L are closely related, but a low-carbon requirement needs clear confirmation. This matters when bar components will be welded into an assembly.
We can review a request for 304, 304L or dual-certified material against the specified standard. A 304 designation alone does not confirm that the bar meets 304L requirements.
For repeat production, cut lengths and specified drilling or tapping can also reduce the work left in your shop.
