AISI 431 Stainless steels

Material group: Ferrous Alloys / Stainless steels
Country / Standard: United States / AISI
Indicative price:

Data updates

Latest Update: 2019-06
Total number of updates: 7
Update History

This material has 624 properties — only a subset is shown here.

Unlock full material properties, including detailed values across temperatures and conditions.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

AISI 431 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.13 – 0.17
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
15.50 – 16.50
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.30 – 0.80
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
N
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
CRITERIA
Ni
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
P
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
Full data available with free access View Complete Material Data
UNIT
%
CAS NUMBER
7440-21-3

SAE AMS-S-18732B: 1998 / Steel Bars, Wire, Forging Stock, Forgings, Tubing (431), Special

Looking for full material performance data?

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

AISI 431 Physical Properties


Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 215 GPa
Unlock full details
Full data available with free access View Complete Material Data
Density
7.61 — 8.1 kg/dm³
Unlock full details
Full data available with free access View Complete Material Data
Poisson Coefficient
0.27 — 0.3
Unlock full details
Full data available with free access View Complete Material Data

This material has 624 properties — only a subset is shown here.

Unlock detailed physical values across temperatures and conditions.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

AISI 431 Heat Treatments


  • Annealed, or hardened and tempered as specified. Liquid quenching shall be permitted only by agreement with the purchaser
    Heat treating at 1020°C ± 14°C (1875 ± 25°F) and quenching in the oil or polymer (samples for testing shall be in the form of a section not exceeding 9.50 mm in thickness). Polymer selected should have a cooling rate similar to oil to prevent cracking.
    It should be used by the purchaser in the hardened and tempered condition.
  • After heat treating at 1025°C ± 15°C (1875°F ± 25°F) and oil quenching, grade shall be capable of meeting the hardness of 40 HRC minimum (testing section t ≤ 9.50 mm).

AISI 431 Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
725 — 965 MPa
Unlock full details
Full data available with free access View Complete Material Data
Brinell Hardness (HB)
229 — 440
Unlock full details
Full data available with free access View Complete Material Data
Elongation, A
≥ 10 %
Unlock full details
Full data available with free access View Complete Material Data
Reduction of Area
val1
Full data available with free access View Complete Material Data
%
Unlock full details
Full data available with free access View Complete Material Data
Rockwell Hardness (HR)
val1
Full data available with free access View Complete Material Data
Unlock full details
Full data available with free access View Complete Material Data
Yield Strength, Rp0.2
val1
Full data available with free access View Complete Material Data
MPa
Unlock full details
Full data available with free access View Complete Material Data

Need complete mechanical properties to make the right choice?

Get complete data on strength, hardness, fatigue, and more.

View Complete Material Data ›
Free registration required • Instant access

Free registration required • Instant access

Book A Demo

AISI 431 International Equivalent Materials


Showing 15 of 261 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
JIS
COUNTRY / PRODUCER
Japan
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
ISO
COUNTRY / PRODUCER
International
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
MSZ
COUNTRY / PRODUCER
Hungary
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
SAE
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
UNS
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
ASME
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
STANDARD
ASTM
COUNTRY / PRODUCER
United States
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
GB
COUNTRY / PRODUCER
China
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
ISO
COUNTRY / PRODUCER
International
EQUIVALENCE CATEGORY
Official
MATERIAL
STANDARD
JIS
COUNTRY / PRODUCER
Japan
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
STANDARD
MSZ
COUNTRY / PRODUCER
Hungary
EQUIVALENCE CATEGORY
Official

Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.

Need the full list of 261 international equivalents?

See all 261 equivalent grades with detailed mapping by standard, producer and equivalence category.

View All Equivalents ›
Free registration required • Instant access

Free registration required • Instant access

Book A Demo

Optimize material selection for your application - Book A Demo

  • 261Cross References

  • 72Composition
  • 31Mechanical Properties
  • 3Physical Properties
  • 7Heat Treatment
  • 1Metallography
  • 2Machinability

  • 1Stress-Strain
  • 1Formability
  • 3Fatigue
  • -Fracture
  • -Creep

  • 10Joints
  • -Coatings
  • 81Dimensions
  • 6Tribology

  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation

  • 145Total Suppliers