AISI 304 Stainless steels

Material group: Ferrous Alloys / Stainless steels

Country/Standard: United States / AISI

Data updates

Latest Update: 2026-01

Total number of updates: 35

Update History

2025-11 2025-08 2024-07 2024-04 2024-03 2023-12 2023-05 2023-04 2022-11 2021-12 2021-10 2020-11 2020-03 2020-02 2019-12 2019-08 2019-07 2019-05 2019-03 2018-10 2018-08 2018-05 2018-01 2017-11 2017-07 2017-04 2016-06 2016-05 2016-02 2015-09 2015-06 2015-02 2014-11 2013-11

This material has 15054 properties — only a subset is shown here.

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AISI 304 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-96-5

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-02-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-21-3

SAE J 467b: 1968 / Special Purpose Alloys (ʺSuperalloysʺ)

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AISI 304 Physical Properties

Temperature

≤ 0°C 0 - 30°C 30 - 100°C 100 - 300°C ≥ 300°C

PROPERTY / VALUE

Modulus of Elasticity

val1 GPa

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Shear Modulus

val1 GPa

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Density

val1 kg/dm³

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Poisson Coefficient

val1

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Coefficient of Thermal Expansion (CTE)

val1 10^-6/°C

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Thermal Conductivity

val1 W/(m∙°C)

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Heat Capacity

val1 J/(kg∙°C)

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Electrical Resistivity

val1 Ω∙mm²/m

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Electrical Conductivity

val1 S/m

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Melting Temperature

val1 °C

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This material has 15054 properties — only a subset is shown here.

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AISI 304 Heat Treatments

Annealed at 980°C (1800°F) minimum and rapidly quenched.
After hot working, forgings shall be cooled to a temperature below 538°C (1000°F) prior to heat treating.
Solution treating and quenching: austenitizing/solution heat treatment temperature 1040°C (1900°F) minimum, liquid cooling. Quenching cool below 260°C (500°F).

AISI 304 Mechanical Properties

Temperature

≤ 0°C 0 - 30°C 30 - 100°C 100 - 300°C ≥ 300°C

PROPERTY / VALUE

Yield Strength, Rp0.2

val1 MPa

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Yield Strength, Rp1

val1 MPa

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Compression Yield Strength

val1 MPa

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Tensile Strength

val1 MPa

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Elongation, A

val1 %

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Reduction of Area

val1 %

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Impact Energy

val1 J

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Brinell Hardness (HB)

≤ 201

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Rockwell Hardness (HR)

val1

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Vickers Hardness (HV)

val1

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Grain Size

val1

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1113 Cross References

265 Composition
1059 Mechanical Properties
609 Physical Properties
19 Heat Treatment
11 Metallography
4 Machinability

68 Stress-Strain
23 Formability
17 Fatigue
- Fracture
419 Creep

391 Joints
- Coatings
141 Dimensions
37 Tribology

10172 Corrosion
8 Ageing
- Weatherability
41 Irradiation

657 Total Suppliers