A 765 Grade IV (United States / ASTM) Material Properties

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

Data updates

Latest Update: 2017-05
Total number of updates: 1
Update History:

Mechanical Properties

Temperature

≤ 0°C
0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 345 MPa view details
Tensile Strength 550 — 725 MPa view details
Elongation, A 22 % view details
Reduction of Area val1
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% view details
Impact Energy val1
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J view details
Grain Size val1
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view details
Yield Strength, Rp0.2 50 ksi view details
Tensile Strength 79.8 — 105.2 ksi view details
Elongation, A 22 % view details
Reduction of Area val1
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% view details
Impact Energy val1
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ft·lb view details
Grain Size 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
Al
VALUE
≤ 0.05
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
≤ 0.20
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
≤ 0.40
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
val1
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UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Mn
VALUE
val1
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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

A765/A765M: 2024 / Standard Specification for Carbon Steel and Low-Alloy Steel Pressure-Vessel-Component Forgings with Mandatory Toughness Requirements

Heat Treatments

  • Heat treatment shall consist of one of the following heat treatment options of the manufacturer’s choice: <br> 1. Normalize and temper <br> 2. Double normalize, wherein the second austenitizing temperature is at the same or lower temperature than the first, followed by tempering <br> 3. Quench and temper, with the option of adding a preliminary normalize before austenitizing for quenching in a suitable liquid medium. The type of cooling medium used shall be reported <br> 4. The minimum tempering temperature shall be 590°C (1100°F).