COMMON DESIGNATIONS
Grade identifiers
- UNS — Unified Numbering System designation
- S43000
- EN — European standard number
- 1.4016
- JIS — Japanese Industrial Standards designation
- SUS430
These are commonly cited designation mappings. They do not establish one-to-one equivalence for every product form or specification; confirm the required standard and material certificate.
MATERIAL PROFILE
A common ferritic stainless sheet grade
430 is a ferritic stainless steel commonly referenced as UNS S43000 and EN 1.4016; JIS SUS430 is a common cross-reference. Outokumpu describes its 430/4016 product as a ferritic grade for mildly corrosive environments, particularly indoor use. Product form, surface condition and the applicable standard determine the delivered material properties.
GRADE COMPARISON / 01
How 304, 316L and 430 differ
Compare the alloy families and published chemistry ranges first. They help explain where each grade is commonly considered, but they do not replace a check against the service environment and the specified product standard.
Typical composition ranges (% by mass)
0 — 20%Cr · Chromium Ni · Nickel Mo · Molybdenum
304
304 Stainless Steel
A widely used austenitic chromium-nickel grade for general-purpose applications that need formability and corrosion resistance.
- Chromium
- 17.5–19.5%
- Nickel
- 8–10.5%
- Molybdenum
- Not listed in this table
Selection context
For chloride-rich or more aggressive corrosive service, assess 316/316L or another grade against the actual environment. Grade 304 is not a universal choice; this summary does not qualify material for a specific application.
316L
316L Stainless Steel
A low-carbon 316 grade with molybdenum, considered where more resistance to localized corrosion is needed than a basic 304 grade provides.
- Chromium
- 16–18%
- Nickel
- 10–14%
- Molybdenum
- 2–3%
Selection context
The low-carbon designation and molybdenum addition do not make 316L immune to corrosion. Temperature, chloride concentration, crevices, surface finish, fabrication and the governing standard all affect selection.
430
430 Stainless Steel
A ferritic chromium stainless steel commonly specified in sheet form for mildly corrosive and indoor applications.
- Chromium
- 16–18%
- Nickel
- Not listed in this table
- Molybdenum
- Not listed in this table
Selection context
430 belongs to the ferritic family, while 304 and 316L are austenitic. Check the service environment, fabrication route and required product standard before comparing or substituting grades.
Ranges follow the cited British Stainless Steel Association reference tables for these grade designations. A dash means that table lists no range, not zero content. Product-form standards can differ; verify the specification and mill certificate before ordering.
Composition references
British Stainless Steel AssociationAPPLICATION CONTEXT
Where it is commonly considered
Typical references include kitchen equipment, household appliances, sinks, elevators and other indoor equipment. Confirm corrosion exposure, forming and joining requirements before specifying it.
SELECTION NOTE
Do not treat it as a drop-in 304 substitute
430 belongs to the ferritic family, while 304 and 316L are austenitic. Check the service environment, fabrication route and required product standard before comparing or substituting grades.
MATERIAL RECORD
External references
These sources support the short reference above. Use the contractual product standard, current mill documentation and service conditions for engineering and purchasing decisions.