Corrosion resistance
Different grades support different environments, cleaning methods and documentation requirements.
Metal material
Stainless Steel Manufacturing and Custom Parts
A corrosion-resistant metal family used for durable precision, fluid-control, and equipment parts.
- Corrosion resistant
- Durable
- Finish compatible
Material overview
A durable material family for corrosion-resistant precision parts.
Stainless steel is selected when parts need a durable metal surface, corrosion resistance, stiffness, wear resistance, or a clean natural-metal appearance. It is used for shafts, fittings, brackets, enclosures, manifolds, instrument hardware and sheet metal assemblies.
The term stainless steel covers multiple grades and supply forms. Kewei reviews whether a general grade such as 304 is sufficient, whether 316 is required for more demanding exposure, and how machining, forming, welding, polishing or passivation will affect the final part.
Key properties
Performance characteristics translated into manufacturing decisions.
Strength and stiffness
Useful for structural hardware, shafts, brackets and equipment parts that need more rigidity than aluminum.
Machined durability
Suitable for threaded fittings, turned parts, valve bodies and precision interfaces when heat and work hardening are managed.
Finish options
Brushing, polishing, passivation and selected coatings can be reviewed with the grade and appearance target.
Suitable processes
Manufacturing routes for this material.
Compatible Surface Finishes
Surface options reviewed with the base material.
Typical applications
Common Stainless Steel part families.
Precision shafts
Fluid-control bodies
Equipment brackets
Stainless panels
Instrument hardware
Machine covers
Design considerations
Control the features that affect function and process stability.
G 01
Select 304, 316 or another grade based on exposure and documentation needs.
G 02
Define visible faces, grain direction, weld cleanup and passivation requirements.
G 03
Allow access for tools, deburring and inspection on deep or internal features.
G 04
Separate cosmetic acceptance from dimensional inspection criteria.
Limitations
Requirements that need engineering review.
- Stainless steel usually machines slower than aluminum and requires suitable tooling and heat control.
- Grade names are not interchangeable; corrosion exposure and documentation needs should be reviewed.
- Polished or brushed surfaces require defined cosmetic faces and handling controls.
- Welding and sheet forming can introduce distortion, heat tint or cleanup requirements.
RFQ checklist
Material details to include in the quotation package.
Clear requirements help engineering, finishing, inspection, and purchasing review the same target.
- 01Required grade or acceptable grade range
- 02Material form: bar, plate, tube or sheet
- 03Passivation, brushing, polishing or other finish requirement
- 04Critical fits, weld details, inspection and certificate needs
Related parts
Representative geometry from the parts gallery.
The gallery examples show common stainless part families. Final grade and surface treatment should be verified by the controlled drawing and material documents.
Precision Turned Shafts
CNC Turning · Stainless Steel · Passivation
View part
Stainless Valve Body
CNC Machining · Stainless Steel · Passivation
View part
Stainless Manifold
CNC Machining · Stainless Steel · Passivation
View part
Stainless Fluid Connector
CNC Turning · Stainless Steel · Passivation
View partRelated materials
Compare adjacent material options before freezing the drawing.
FAQ
Stainless Steel questions from engineering and sourcing teams.
Should a drawing call out stainless steel or a specific grade?
A specific grade is preferred when corrosion resistance, certificates, strength, weldability or customer approval matters. General stainless wording can slow quotation review.
Can stainless parts be both machined and passivated?
Yes. Passivation is commonly reviewed after machining or fabrication, but cleaning, heat tint, embedded contamination and the specified grade affect the result.
When should 316 be considered instead of 304?
316 is commonly reviewed for more demanding corrosion exposure. The actual environment, temperature, cleaning process and documentation requirements should guide the decision.
Start your RFQ
Upload your drawings and receive an engineer-reviewed quotation.
Share the material, process, quantity, finish, critical requirements, and delivery needs. contact@kewei-kw.com / +86-13929495765