FERRITIC STAINLESS STEEL

AISI 430F

AISI 430F is listed in the FERRITIC STAINLESS STEEL material family. The reference data below should be checked against the governing product specification, product form and delivery condition before selection or certification.

AISI 430F
MATERIAL INTRODUCTION

AISI 430F

The reference chemistry table for AISI 430F lists Chromium (Cr): Primary chromium-alloyed ferritic stainless composition; Molybdenum (Mo): Present in Mo-bearing grades; improves localized corrosion resistance; Stabilizers (Ti/Nb): Used in selected stabilized grades; Carbon (C): Controlled at a low level. Confirm exact limits and analysis tolerances against the governing standard and product form.

The mechanical-property table for AISI 430F lists Tensile Strength: Approx. 450–700 MPa; Yield Strength: Approx. 250–450 MPa; Elongation: Approx. 15–30 %; Hardness: Approx. 75–100 HRB HB. These are reference entries; supplied condition, dimensions, test method and governing specification control the requirements, and the figures are not design allowables.

Werkstoff / EN cross-reference for AISI 430F: 1.4104. This comparison does not guarantee interchangeability; confirm chemistry, product form and condition against the governing specification.

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TECHNICAL INFORMATION

Material Identification

Standard identification and material designation information for AISI 430F.

Material AISI 430F
UNS Number Reference designation depends on applicable standard
Reference / Equivalent No universal equivalent confirmed
Material Type Ferritic stainless steel
Werkstoff Number1.4104
MATERIAL PROPERTIES

Chemical Composition

The reference chemistry table lists Chromium (Cr): Primary chromium-alloyed ferritic stainless composition; Molybdenum (Mo): Present in Mo-bearing grades; improves localized corrosion resistance; Stabilizers (Ti/Nb): Used in selected stabilized grades; Carbon (C): Controlled at a low level. Confirm the governing standard, product analysis tolerances and product form before ordering.

Element Symbol Composition
Chromium Cr Primary chromium-alloyed ferritic stainless composition
Molybdenum Mo Present in Mo-bearing grades; improves localized corrosion resistance
Stabilizers Ti/Nb Used in selected stabilized grades
Carbon C Controlled at a low level
Iron Fe Balance
Other Elements — Controlled according to the applicable grade and product specification
PERFORMANCE DATA

Mechanical Properties

The table reports Tensile Strength: Approx. 450–700 MPa; Yield Strength: Approx. 250–450 MPa; Elongation: Approx. 15–30 %; Hardness: Approx. 75–100 HRB HB as reference data for AISI 430F. Actual requirements depend on condition, dimensions, test method and specification; these values are not design allowables.

Property Value Unit
Tensile Strength Approx. 450–700 MPa
Yield Strength Approx. 250–450 MPa
Elongation Approx. 15–30 %
Hardness Approx. 75–100 HRB HB
MATERIAL DATA

Physical Properties

Density Approx. 7.6–7.8 g/cm³
Elastic Modulus Approx. 200 GPa
Thermal Conductivity Approx. 24–28 W/m·K
Specific Heat Approx. 460 J/kg·K
Melting Range Approx. 1400–1510°C
WHY SELECT THIS MATERIAL

Material Characteristics

AISI 430F combines the characteristics of its stainless-steel family with grade-specific alloying and heat-treatment behavior suited to its intended service.

01

Ferritic Structure

Magnetic stainless structure with no austenite-stabilizing nickel requirement in the base family.

02

Corrosion Resistance

Chromium provides the passive surface film; molybdenum-bearing grades offer stronger localized-corrosion resistance.

03

Dimensional Stability

Ferritic grades generally retain stable dimensions during thermal cycling.

04

Grade Flexibility

The listed designations cover different machinability, stabilization and corrosion-resistance requirements.

AISI 430F Bolting Products

INDUSTRIAL USE

Typical Applications

AISI 430F is selected for engineered components and bolting where the material characteristics of this grade match the service environment.

01

Automotive and exhaust hardware

AISI 430F is considered for automotive and exhaust hardware when its grade-specific corrosion, strength and temperature characteristics meet the service requirement.

02

Industrial equipment

AISI 430F is considered for industrial equipment when its grade-specific corrosion, strength and temperature characteristics meet the service requirement.

03

Architectural and fabricated components

AISI 430F is considered for architectural and fabricated components when its grade-specific corrosion, strength and temperature characteristics meet the service requirement.

04

Machined stainless parts

AISI 430F is considered for machined stainless parts when its grade-specific corrosion, strength and temperature characteristics meet the service requirement.

ENGINEERING GUIDE

Engineering Considerations

Material Selection

Select the individual grade, not only the ferritic family.

Formability

Review weldability and sensitization behavior for welded assemblies.

Mechanical Requirements

Confirm chloride and elevated-temperature exposure against the exact grade.

COMMON QUESTIONS

Frequently Asked Questions

What is the Werkstoff number for AISI 430F?

The commonly listed Werkstoff / EN cross-reference for AISI 430F is 1.4104. Treat this as a grade comparison, not a guarantee of interchangeability. Verify chemistry, product form, condition and governing specification against the supplier certificate before substitution.

ENGINEERING SUPPORT

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