A 707 Grade L3 Class 3 (United States / ASTM) Material Properties

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

Data updates

Latest Update: 2020-03
Total number of updates: 2
Update History:
2015-02

Mechanical Properties

Temperature

≤ 0°C
0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 515 MPa view details
Elongation, A 20 % 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) 156 — 235 view details
Yield Strength, Rp0.2 val1
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ksi view details
Tensile Strength 74.7 ksi view details
Elongation, A 20 % 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) 156 — 235 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
≤ 0.22
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
CEV
VALUE
≤ 0.47
UNIT
%
CAS NUMBER
CRITERIA
Cr
VALUE
≤ 0.30
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
N
VALUE
val1
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UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
CRITERIA
Nb
VALUE
val1
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UNIT
%
CAS NUMBER
7440-03-1
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

A707/A707M: 2025 / Standard Specification for Forged Carbon and Alloy Steel Flanges for Low-Temperature Service

Heat Treatments

  • Material shall be heat treated by annealing, normalizing, precipitation hardening, quenching and tempering, normalizing and tempering, normalizing and precipitation hardening, or quenching and precipitation hardening.<br />Precipitation hardening: Consists of heating to a temperature between 538 - 677°C (1000 - 1250°F), holding at temperature for not less than 1/2 h, and then cooling at any convenient rate.