31Ni10 (European Union / EN) Material Properties

Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: European Union / EN

Data updates

Latest Update: 2020-03
Total number of updates: 2
Update History:
2019-03

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 1230 — 1420 MPa view details
Elongation, A 9 % view details
Reduction of Area val1
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% view details
Impact Energy val1
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J view details
Brinell Hardness (HB) 248 view details
Vickers Hardness (HV) val1
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view details
Yield Strength, Rp0.2 val1
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ksi view details
Tensile Strength 178.4 — 206 ksi view details
Elongation, A 9 % view details
Reduction of Area val1
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% view details
Impact Energy val1
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ft·lb view details
Brinell Hardness (HB) 248 view details
Vickers Hardness (HV) val1
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view details

Physical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 210 GPa view details
Density 7.67 — 7.86 kg/dm³ view details
Poisson Coefficient 0.27 — 0.3 view details
Modulus of Elasticity 27.6 E+03 — 30.5 E+03 ksi view details
Density 0.277 — 0.284 lb/in³ view details
Poisson Coefficient 0.27 — 0.3 view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.27 – 0.35
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.50 – 0.80
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.45 – 0.70
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3

EN 2450: 2018 / Aerospace series - Steel 31Ni10 - 1 230 MPa ≤ Rm ≤ 1 420 MPa - Bars - De ≤ 40 mm

Heat Treatments

  • Hardened and tempered: 840 ≤ t ≤ 860°C, oil quenched; tempered at t ≥ 520°C.
  • Hardened and tempered <br> + 840°C ≤ &Theta; ≤ 860°C/OQ <br> + temper &Theta; ≥ 520°C