1.4901 (Germany / DIN) Material Properties

Other designations: ,
Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: Germany / DIN

Data updates

Latest Update: 2022-01
Total number of updates: 5
Update History:
2021-06 2020-03 2018-10 2015-06

Mechanical Properties

Temperature

0 - 30°C
30 - 100°C
100 - 300°C
≥ 300°C
PROPERTY / VALUE
Yield Strength, Rp0.2 440 MPa view details
Yield Strength, Rp0.2 val1
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MPa view details
Yield Strength, Rp0.2 val1
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MPa view details
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 620 — 850 MPa view details
Tensile Strength val1
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MPa view details
Tensile Strength val1
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MPa view details
Tensile Strength val1
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MPa view details
Elongation, A 17 % view details
Impact Energy val1
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J view details
Vickers Hardness (HV) val1
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Yield Strength, Rp0.2 63.8 ksi view details
Yield Strength, Rp0.2 val1
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ksi view details
Yield Strength, Rp0.2 val1
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ksi view details
Yield Strength, Rp0.2 val1
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ksi view details
Tensile Strength 89.9 — 123.3 ksi view details
Tensile Strength val1
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ksi view details
Tensile Strength val1
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ksi view details
Tensile Strength val1
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ksi view details
Elongation, A 17 % view details
Impact Energy val1
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ft·lb view details
Vickers Hardness (HV) val1
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Physical Properties

Temperature

0 - 30°C
30 - 100°C
100 - 300°C
≥ 300°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 217 GPa view details
Modulus of Elasticity val1
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GPa view details
Modulus of Elasticity val1
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GPa view details
Modulus of Elasticity val1
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GPa view details
Dynamic Modulus of Elasticity 217 GPa view details
Dynamic Modulus of Elasticity val1
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GPa view details
Dynamic Modulus of Elasticity val1
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GPa view details
Dynamic Modulus of Elasticity val1
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GPa view details
Density 7.67 — 7.86 kg/dm³ view details
Poisson Coefficient val1
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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
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Modulus of Elasticity 27.6 E+03 — 31.5 E+03 ksi view details
Modulus of Elasticity val1
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ksi view details
Modulus of Elasticity val1
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ksi view details
Modulus of Elasticity val1
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ksi view details
Dynamic Modulus of Elasticity 31.5 E+03 ksi view details
Dynamic Modulus of Elasticity val1
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ksi view details
Dynamic Modulus of Elasticity val1
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ksi view details
Dynamic Modulus of Elasticity val1
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ksi view details
Density 0.277 — 0.284 lb/in³ view details
Poisson Coefficient val1
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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
Coefficient of Thermal Expansion (CTE) val1
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10-6/°F view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≤ 0.040
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
B
VALUE
0.001 – 0.006
UNIT
%
CAS NUMBER
7440-42-8
CRITERIA
C
VALUE
0.07 – 0.13
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-47-3
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
CRITERIA
W
VALUE
val1
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UNIT
%
CAS NUMBER
7440-33-7

WB 552/3: 2018 / Heat-resistant steel, X10CrWMoVNb9-2, material No. 1.4901; bar, forging

Heat Treatments

  • <b>Quenching and tempering:</b> Hardened at 1040-1090°C, quenched in oil (for wt < 80 mm, cooling in air or controlled atmosphere can be performed). <br /> Tempered at 750-780°C, held 2 min per mm thickness, minimum 60 min, cooled in air. <br /> <br /> Hot forming should be carried out at 1150-850°C. <br /> After hot forming and for cold forming with deformation rate > 5%, renewed heat treatment is required.
  • Hardening at 1040-1090°C, cooled in air (for wt > 80 mm, cooling can be performed in oil or similar suspensions or water spray) <br /> Tempering at 740-780°C, hold at least 60 min (the holding period begins when the temperature in the cross section is reached), cooled in air <br /> Stress relieving after welding at 740-780°C, holding time: <br /> for s < 8 mm is 30 min <br /> for s > 8 mm from 30 to 60 mm <br /> for s > 30 mm is 2 min/mm, cooled in air. The holding time starts when the temperature in the cross-section is reached.<br /> Stress relieving after cold forming at 700-760°C, hold 2 minutes per mm thickness, at least 60 minutes, cooled in air. The holding time starts when the temperature in the cross-section is reached.<br /><br /> Hot forming should be carried out in the range 1100-850°C. After hot forming, renewed quenching and tempering is required.