A 723 Grade 1 Class 2 (United States / ASTM) Material Properties

Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: United States / ASTM

Data updates

Latest Update: 2019-04
Total number of updates: 2
Update History:
2018-11

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 825 MPa view details
Tensile Strength 930 MPa view details
Elongation, A 14 % view details
Reduction of Area val1
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% view details
Impact Energy val1
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J view details
Yield Strength, Rp0.2 119.7 ksi view details
Tensile Strength 134.9 ksi view details
Elongation, A 14 % view details
Reduction of Area val1
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% view details
Impact Energy val1
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ft·lb 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
≤ 0.35
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.80 – 2.00
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
≤ 1.00
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
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2

A723/A723M: 2018 / Alloy Steel Forgings for High-Strength Pressure Component Application

Heat Treatments

  • Heat treatment shall consist of normalizing (which may be part of the preliminary treatment), reaustenitization, liquid quenching, and tempering. The forgings shall be quenched in a suitable liquid medium by spraying or immersion. Quenching shall be followed by tempering at a minimum temperature of 540°C (1000°F). The minimum time at tempering temperature shall be 0.5h / 25 mm of maximum section thickness, unless otherwise agreed between supplier and purchaser.