EN 1.5414 (18MnMo4-5) Molybdenum Steel
Other Steels
normalized and tempered
Property Overview
Density7.9g/cm³
Elastic Modulus190GPa
Tensile Strength580MPa
Yield Strength380MPa
Brinell Hardness180HB
Maximum Service Temperature410°C
Chemical Composition
C
0 to 0.2%
CR
0 to 0.3%
NI
0 to 0.3%
MO
0.45 to 0.6%
MN
0.9 to 1.5%
SI
0 to 0.4%
N
0 to 0.012%
P
0 to 0.015%
S
0 to 0.0050%
CU
0 to 0.3%
FE
96.4 to 98.7%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
22 %
Fatigue Strength
270 MPa
Impact Strength: V-Notched Charpy
46 J
Poisson's Ratio
0.29
Shear Modulus
73 GPa
Shear Strength
370 MPa
Tensile Strength: Ultimate (UTS)
580 MPa
Tensile Strength: Yield (Proof)
380 MPa
Hardness
Brinell Hardness
180
Physical
Density
7.9 g/cm 3
Thermal
Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
410 °C
Melting Completion (Liquidus)
1470 °C
Melting Onset (Solidus)
1420 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
44 W/m-K
Thermal Diffusivity
12 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
17 points
Electrical
Electrical Conductivity: Equal Volume
7.3 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.4 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
110 MJ/m 3
Resilience: Unit (Modulus of Resilience)
370 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
20 points
Strength to Weight: Bending
20 points
Environmental
Base Metal Price
2.6 % relative
Embodied Carbon
1.6 kg CO 2 /kg material
Embodied Energy
21 MJ/kg
Embodied Energy
21 MJ/kg 8.8 x 10 3 BTU/lb
Embodied Water
50 L/kg
Embodied Water
50 L/kg 6.0 gal/lb
Registered Designations & Aliases
1.54141.541418MnMo4-518MnMo4-5EN 1.5414 (18MnMo4-5) Molybdenum Steel
Standards
EN 10028-2 EN 10028-2: 2009 Flat products made of steels for pressure purposes. Non-alloy and alloy steels with specified elevated temperature properties
EN 10028-2 EN 10028-2: Flat products made of steels for pressure purposes - Part 2: Non-alloy and alloy steels with specified elevated temperature properties
EN 10028-2 EN 10028-2: Flat products made of steels for pressure purposes - Part 2: Non-alloy and alloy steels with specified elevated temperature properties Creep-Resistant Steels, Fujio Abe et al. (editors), 2008 Pressure Vessels: External Pressure Technology, 2nd ed., Carl T. F. Ross, 2011 Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005