304 Stainless Steel CNC Machining Services for Custom Parts
Factory-direct 304 stainless steel CNC machining for general corrosion-resistant custom parts, including brackets, fixtures, shafts, bushings, fittings, plates, mounting blocks, food equipment parts, medical-style components and industrial hardware. Upload CAD files for material review, DFM feedback, tolerance evaluation and finishing recommendations.
304 & 304L Parts
Grade reviewed by corrosion environment, function and availability.
Milling, Turning & Swiss
Process selected by geometry, thread, OD/ID and part size.
Passivated 304 Components
Passivation, brushing, bead blasting and polishing reviewed.
Threads, Holes & Datums
Thread gauges, hole positions, flatness and mating faces inspected.
Prototype to Production
Samples, pilot runs and repeat 304 stainless production support.
Is 304 stainless steel good for CNC machining? | Yes. 304 stainless steel is widely used for CNC machined parts requiring general corrosion resistance, strength, durability and clean surfaces. |
| When should I choose 304 instead of 316? | Choose 304 for general corrosion-resistant parts where cost and availability matter. Choose 316 when the part will face harsher corrosion, chloride, marine or chemical environments. |
| Is 304 harder to machine than 303? | Yes. 303 is generally easier to machine, especially for turned parts. 304 is chosen when better general corrosion resistance is more important than machining speed. |
| Can 304 stainless steel be passivated? | Yes. Passivation is commonly used after machining 304 stainless steel to improve corrosion resistance and remove surface contaminants. |
| Can you machine threaded 304 parts? | Yes. Threads, tapped holes, fittings and inserts can be machined and inspected with thread gauges when required. |
| Can you support prototypes and production? | Yes. Baosheng supports 304 stainless steel prototypes, low-volume production and repeat CNC machining for validated parts. |
304 Capability
304 Stainless Steel CNC Machining Capability
304 stainless steel machining capability depends on part geometry, wall thickness, hole depth, thread requirements, tolerance, burr control, surface finish and inspection method. Baosheng reviews CAD models and 2D drawings before machining to identify work-hardening risk, tool access, passivation requirements and inspection needs.
| Capability Area | Manufacturing Range | Best For |
|---|---|---|
| 304 CNC Milling | Milled 304 brackets, plates, fixture components, mounting blocks and device parts. | Assembly fixtures, equipment brackets, mounting plates and industrial components. |
| 304 CNC Turning | Turned shafts, pins, bushings, sleeves, spacers, fittings and threaded parts. | Round stainless parts, connectors, assembly hardware and functional components. |
| 304 Swiss-Style Machining | Small-diameter 304 shafts, pins and precision turned components. | Miniature shafts, slender pins, connectors and small stainless parts. |
| 304 Prototype Machining | Functional 304 stainless prototypes for fit, corrosion, strength and assembly review. | Engineering validation, material review and pre-production samples. |
| Low-Volume 304 Production | Small-batch 304 stainless parts after prototype validation. | Pilot runs, bridge production and repeat low-volume orders. |
| Passivated 304 Stainless Parts | Passivation, deburring, polishing or brushed finish support. | Corrosion-resistant parts, clean-surface components and customer-facing stainless parts. |
Material Fit
When to Choose 304 Stainless Steel for CNC Machined Parts
304 stainless steel is often selected when a part needs general corrosion resistance, strength, durability and clean surfaces without the higher corrosion resistance or cost of 316 stainless steel. It is commonly used for brackets, fixtures, shafts, bushings, fittings, plates, mounting blocks, food equipment parts, medical-style components and industrial hardware.
For broader grade comparison, review stainless steel CNC machining. Lightweight structural parts may be better suited for aluminum CNC machining. Highly conductive parts may require brass CNC machining.
Choose 304 when
You need general corrosion resistance, strength, clean surfaces and durable functional stainless components.
Choose 316 when
The part faces stronger corrosion, chloride exposure, marine conditions or chemical environments.
Consider 303 when
The part is mainly a turned shaft or fitting and machinability is more important.
Consider 17-4 PH when
The part requires higher strength, hardness or structural performance.
Grade Selection
304 vs 316 vs 303 vs 17-4 PH Stainless Steel
304 stainless steel is a practical choice for many CNC machined stainless parts, but it is not always the best grade. Baosheng reviews corrosion environment, machinability, finish, cost and inspection needs before quoting.
| Grade | Best For | Why Choose / Avoid |
|---|---|---|
| 304 Stainless Steel | General corrosion-resistant brackets, fixtures, shafts, fittings and device parts. | Choose for broad availability, good corrosion resistance and durable functional parts. |
| 316 Stainless Steel | Marine, chemical, medical-style, food equipment and corrosion-critical parts. | Choose when better corrosion resistance is required, especially in harsher environments. |
| 303 Stainless Steel | Precision turned shafts, fittings, pins and repeat machined components. | Choose when machinability and turning efficiency matter; corrosion resistance is usually lower than 304/316. |
| 17-4 PH Stainless Steel | High-strength parts, hardened components, shafts and structural parts. | Choose when strength, hardness and dimensional stability are more important. |
| 416 Stainless Steel | Machined shafts, screws and improved-machinability components. | Choose when machinability matters, but review corrosion resistance carefully. |
Process Selection
304 Stainless Steel CNC Machining Processes
304 stainless steel projects often require careful tool selection, cutting strategy, burr control and finishing planning. Compared with aluminum, 304 stainless steel usually creates more heat, tool wear and work-hardening risk.
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304 Stainless Steel CNC Milling
02
304 Stainless Steel CNC Turning
03
Swiss Machining for 304 Stainless Parts
04
Passivated 304 Stainless Steel Parts
Part Types
Custom 304 Stainless Steel Parts We Manufacture
Baosheng supports custom 304 stainless steel parts where general corrosion resistance, clean surfaces, thread quality, burr control and dimensional stability matter.
- 304 stainless steel brackets
- 304 stainless fixture plates
- 304 mounting blocks
- 304 stainless shafts
- 304 stainless pins
- 304 bushings
- 304 sleeves
- 304 spacers
- 304 threaded fittings
- 304 connector components
- 304 food equipment parts
- 304 medical-style device components
- 304 assembly fixtures
- 304 mounting plates
- 304 stainless inserts
- 304 industrial machine parts
- Passivated 304 stainless steel parts
- Polished 304 stainless parts
- Low-volume 304 stainless production parts
Finishing
Surface Finishing for 304 Stainless Steel CNC Parts
304 stainless steel is commonly finished with passivation, electropolishing, brushing, polishing or bead blasting depending on corrosion, cleanliness and appearance requirements. Surface finishing should be reviewed before machining because it can affect burrs, edges, surface roughness, cosmetic surfaces and inspection requirements.
As-Machined
Functional 304 parts where tool marks are acceptable.
Passivation
Improving corrosion resistance after machining.
Electropolishing
Smoother, cleaner and corrosion-resistant surfaces for selected 304 parts.
Brushing
Cosmetic linear finish for visible 304 stainless parts.
Polishing
Appearance surfaces or lower roughness requirements.
Bead Blasting
Uniform matte finish for selected 304 components.
Laser Marking
Part numbers, revision marks and traceability.
Deburring / Edge Break
Safe handling, assembly and burr-sensitive features.
Not sure whether 304 is the right stainless grade?
Upload CAD files and drawings. We will review corrosion environment, machinability, surface finish, burr-free areas and inspection requirements before quoting.
304 Part Quality
Work Hardening, Threads, Burrs and 304 Stainless Steel Part Inspection
304 stainless steel is strong and corrosion resistant, but machining strategy matters. 304 can work harden during machining and may create more tool wear, heat buildup and burrs than aluminum or brass. Baosheng reviews part geometry, hole depth, thread depth, wall thickness, tool access, surface finish and inspection requirements before production.
Grade Review
304, 304L, 316 or 303 compared by application.
Work-Hardening Risk
Cutting strategy, heat buildup and tool wear reviewed.
Thread / Hole Review
Thread depth, gauges, small holes and deep holes checked.
Burr Control
Holes, edges and internal passages defined for deburring.
Machining
Milling, turning, Swiss or combined process selected.
Finishing Review
Passivation, electropolishing, brushing and polishing reviewed.
Inspection
Threads, OD/ID, flatness, datums and roughness checked when required.
Cleaning & Packaging
Protect clean surfaces and passivated 304 components.
Industries
304 Stainless Steel CNC Machining for Engineering Applications
Food Equipment
Brackets, spacers, shafts, fittings, mounting plates and corrosion-resistant hardware.
Medical Devices
304 stainless steel medical-style components, fixtures, device components and clean-surface parts.
Robotics
304 stainless steel robotics parts, shafts, sleeves, spacers, pins and assembly hardware.
DFM Guidance
Design Tips for 304 Stainless Steel CNC Machined Parts
Good 304 stainless part design balances corrosion environment, machinability, thread quality, burr control, surface finish and inspection requirements.
- Use 304 for general corrosion-resistant stainless parts where 316-level corrosion resistance is not required.
- If the part is mainly a turned shaft or fitting and corrosion demand is moderate, 303 may improve machinability.
- Tighten only dimensions that affect fit, function, sealing or assembly.
- Define thread type, thread depth and gauge requirements clearly.
- Very small or deep holes in 304 stainless steel may increase machining time and cost.
- Identify holes, edges and internal passages that must be burr-free.
- Add realistic internal radii to improve tool access and reduce machining risk.
- Define passivation, brushing, polishing, bead blasting, electropolishing or roughness requirements early.
- Provide drawings for tolerances, threads, datums, surface finish and inspection notes.
For broader pricing factors, review CNC machining cost.
Your questions answered
304 Stainless Steel Machining FAQs
Is 304 stainless steel good for CNC machining?
Yes. 304 stainless steel is widely used for CNC machined parts requiring corrosion resistance, strength, durability and clean surfaces. Machining strategy should consider work hardening, heat buildup, burr control and surface finish.
What is 304 stainless steel used for?
304 stainless steel is commonly used for brackets, fixtures, shafts, bushings, sleeves, fittings, mounting plates, food equipment components, medical-style device parts and industrial hardware.
What is the difference between 304 and 316 stainless steel?
304 stainless steel is suitable for general corrosion-resistant parts. 316 stainless steel provides better corrosion resistance in harsher environments, especially where chloride, marine or chemical exposure is a concern.
Is 304 stainless steel harder to machine than 303?
Yes. 303 stainless steel is generally easier to machine than 304, especially for turned parts. 304 is often selected when better general corrosion resistance is more important than machining efficiency.
Can 304 stainless steel be passivated?
Yes. Passivation is commonly used after machining 304 stainless steel to improve corrosion resistance by removing surface contaminants and supporting the protective oxide layer.
Can 304 stainless steel be electropolished?
Yes. Electropolishing can be reviewed for selected 304 stainless steel parts requiring smoother, cleaner or more corrosion-resistant surfaces.
Can you machine threaded 304 stainless steel parts?
Yes. Baosheng can machine tapped holes, threaded fittings and other threaded 304 stainless steel features. Thread type, depth and gauge requirements should be provided on the drawing.
Can you support 304 stainless prototypes and production parts?
Yes. Baosheng supports 304 stainless steel prototype machining, low-volume production and repeat CNC machining for validated parts.
What files do you need for a 304 stainless steel machining quote?
We recommend 3D CAD files and 2D drawings with stainless grade, quantity, tolerances, thread details, surface finish, passivation, roughness and inspection requirements.
Can you sign an NDA before reviewing 304 stainless steel part drawings?
Yes. NDA can be arranged before reviewing confidential CAD files, drawings or product information.
Get a Quote for 304 Stainless Steel CNC Machined Parts
Upload CAD files and drawings with 304 stainless steel requirements, quantity, tolerance, thread, surface finish, passivation, electropolishing, surface roughness and inspection requirements. Our engineers will review machinability, process planning, finishing impact and inspection requirements before quoting.
- NDA available before file review
- 304 / 304L material and process review
- Thread, burr and work-hardening DFM review
- Passivation, electropolishing and roughness review
- Prototype to production support
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