1.6722 (Germany / WL) Material Properties

Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: Germany / WL

Data updates

Latest Update: 2020-10
Total number of updates: 1
Update History:

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 1180 — 1600 MPa view details
Elongation, A 8 % 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) ≤ 277 view details
Yield Strength, Rp0.2 val1
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ksi view details
Tensile Strength 171.1 — 232.1 ksi view details
Elongation, A 8 % 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) ≤ 277 view details

Physical Properties

Temperature

0 - 30°C
30 - 100°C
100 - 300°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 210 GPa view details
Density 7.67 — 7.86 kg/dm³ view details
Poisson Coefficient val1
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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
Thermal Conductivity 54 W/(m∙°C) 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 val1
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view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°F view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°F view details
Thermal Conductivity 31.2 BTU/(h∙ft∙°F) view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.13 – 0.18
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
1.00 – 1.40
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.25 – 0.55
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

WL 1.6722-1: 1992 / Case-hardening nickel-chromium-molybdenum steel with about 0.15 C - 4 Ni - 1 Cr- 0.2 Mo, consumable electrode remelted; bars and forgings

Heat Treatments

  • Annealed: Annealing (650-680°C). Solution heat-treated and quenched: Hardening (850+/-10°C)/oil.