RA4W (PROPRIETARY) Material Properties

Alternative designations: 80MoCrV42-16
Material group: Ferrous Alloys / Tool steels
Country/Standard: PROPRIETARY

Data updates

Latest Update: 2018-05
Total number of updates: 2
Update History:
2014-06

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Rockwell Hardness (HR) 48 — 61 view details
Rockwell Hardness (HR) 48 — 61 view details

Physical Properties

Temperature

0 - 30°C
100 - 300°C
≥ 300°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 210 GPa view details
Density 7.72 — 8 kg/dm³ view details
Poisson Coefficient 0.27 — 0.3 view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Modulus of Elasticity 190 — 210 GPa view details
Density 7.72 — 8 kg/dm³ view details
Poisson Coefficient 0.27 — 0.3 view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
val1
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UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2

Aubert & Duval, Product Data Sheets / Available at: www.aubertduval.com, visited 2018

Heat Treatments

  • Harden: 1<sup>st</sup> preheat to 550°C; 2<sup>nd</sup> preheat to 850°C; Raise from 1060 to 1100°C. Air cool or gas pressure quench. For large parts, air cooling may be replaced by salt bath at 230/250°C, followed by air cooling. Heating in an inert atmosphere is recommended. It is recommended that heating should take place in a neutral atmosphere.<br />Tempering: Double temper at 550C°; 3<sup>rd</sup> temper according to properties required.