EN 1.5026 (56Si7) Silicon Steel
Other Steels
annealed
Property Overview
Density7.7g/cm³
Elastic Modulus190GPa
Tensile Strength720MPa
Yield Strength420MPa
Brinell Hardness220HB
Maximum Service Temperature400°C
Chemical Composition
C
0.52 to 0.6%
MN
0.6 to 0.9%
SI
1.6 to 2.0%
P
0 to 0.025%
S
0 to 0.025%
FE
96.5 to 97.3%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
22 %
Fatigue Strength
300 MPa
Poisson's Ratio
0.29
Shear Modulus
72 GPa
Shear Strength
460 MPa
Tensile Strength: Ultimate (UTS)
720 MPa
Tensile Strength: Yield (Proof)
420 MPa
Hardness
Brinell Hardness
220
Physical
Density
7.7 g/cm 3
Thermal
Latent Heat of Fusion
280 J/g
Maximum Temperature: Mechanical
400 °C
Melting Completion (Liquidus)
1440 °C
Melting Onset (Solidus)
1390 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
47 W/m-K
Thermal Diffusivity
13 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
22 points
Electrical
Electrical Conductivity: Equal Volume
7.3 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.5 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
140 MJ/m 3
Resilience: Unit (Modulus of Resilience)
480 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
26 points
Strength to Weight: Bending
23 points
Environmental
Base Metal Price
1.9 % relative
Embodied Carbon
1.5 kg CO 2 /kg material
Embodied Energy
19 MJ/kg
Embodied Energy
19 MJ/kg 8.4 x 10 3 BTU/lb
Embodied Water
46 L/kg
Embodied Water
46 L/kg 5.4 gal/lb
Registered Designations & Aliases
1.50261.502656Si756Si7EN 1.5026 (56Si7) Silicon Steel
Standards
EN 10089 EN 10089: 2002 Hot rolled steels for quenched and tempered springs. Technical delivery conditions
EN 10089 EN 10089: Hot rolled steels for quenched and tempered springs - Technical delivery conditions
EN 10089 EN 10089: Hot rolled steels for quenched and tempered springs - Technical delivery conditions Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005
EN 10132-4 EN 10132-4: 2000 Cold rolled narrow steel strip for heat treatment. Technical delivery conditions. Spring steels and other applications