Grade TDSiCr Spring Steel
Alloy Steels
Property Overview
Density7.7g/cm³
Elastic Modulus190GPa
Tensile Strength1950MPa
Yield StrengthUnknown
Brinell Hardness590HB
Maximum Service Temperature410°C
Chemical Composition
C
0.5 to 0.6%
CR
0.5 to 0.8%
MN
0.5 to 0.9%
SI
1.2 to 1.6%
P
0 to 0.025%
S
0 to 0.020%
CU
0 to 0.1%
FE
96.6 to 97.8%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Poisson's Ratio
0.29
Reduction in Area
48 %
Shear Modulus
80 GPa
Tensile Strength: Ultimate (UTS)
1950 MPa
Hardness
Brinell Hardness
590
Physical
Density
7.7 g/cm 3
Thermal
Latent Heat of Fusion
270 J/g
Maximum Temperature: Mechanical
410 °C
Melting Completion (Liquidus)
1440 °C
Melting Onset (Solidus)
1400 °C
Specific Heat Capacity
480 J/kg-K
Thermal Conductivity
46 W/m-K
Thermal Diffusivity
12 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
58 points
Electrical
Electrical Conductivity: Equal Volume
7.3 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.5 % IACS
Calculated
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
70 points
Strength to Weight: Bending
45 points
Environmental
Base Metal Price
2.2 % relative
Embodied Carbon
1.5 kg CO 2 /kg material
Embodied Energy
20 MJ/kg
Embodied Energy
20 MJ/kg 8.4 x 10 3 BTU/lb
Embodied Water
48 L/kg
Embodied Water
48 L/kg 5.8 gal/lb
Registered Designations & Aliases
Grade TDSiCr Spring Steel
Standards
EN 10270-2 EN 10270-2: Steel wire for mechanical spring - Part 2: Oil hardened and tempered spring steel wire