Stainless steel grade · Ferritic

AISI 430F · EN 1.4104

Sulphur-bearing version of 430 for fast turning; for small parts in large series, in indoor environments.

Equivalents and designations

The same grade is named differently in each standard. Use the table to check a match.

SystemDesignation
AISI / ASTMAISI 430F
EN material number1.4104
EN steel name (DIN EN 10088)X14CrMoS17
UNSS43020
JISSUS430F
Look up other equivalents →

Chemical composition

C max.
≤ 0.12
Cr
15.5–17.5
Ni
—
Mo
0.2–0.6
Other
S 0.15–0.35

Typical values, wt %, per EN 10088-2 and ASTM A240.

Mechanical and physical properties

Structure
Ferritic
Rm (MPa)
—
Rp0.2 (MPa)
—
A (%)
—
PREN
—
Corrosion
Level 2 of 5
Weldability
Poor
Magnetic
Yes
Density
7.7 g/cm³

ASTM A240 minimums for annealed material; a dash means the value depends on product form.

Typical uses

  • Large-series turned parts
  • Small fasteners for indoor use
  • Components for fast CNC machining

Related grades

AISI 420AISI 430AISI 430LAISI 431

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The data is for guidance and does not replace the heat certificate. The binding values are those of the standard and the manufacturer's certificate.