Grade TDC Spring Steel
Alloy Steels
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength1700MPa
Yield StrengthUnknown
Brinell Hardness510HB
Maximum Service Temperature400°C
Chemical Composition
C
0.6 to 0.75%
CR
0 to 0.3%
MN
0.5 to 1.2%
SI
0.1 to 0.35%
P
0 to 0.020%
S
0 to 0.020%
CU
0 to 0.1%
FE
98 to 99.4%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Poisson's Ratio
0.29
Reduction in Area
50 %
Shear Modulus
80 GPa
Tensile Strength: Ultimate (UTS)
1700 MPa
Hardness
Brinell Hardness
510
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
400 °C
Melting Completion (Liquidus)
1450 °C
Melting Onset (Solidus)
1410 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
51 W/m-K
Thermal Diffusivity
14 mm 2 /s
Thermal Expansion
13 µm/m-K
Thermal Shock Resistance
50 points
Electrical
Electrical Conductivity: Equal Volume
7.1 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.2 % IACS
Calculated
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
60 points
Strength to Weight: Bending
40 points
Environmental
Base Metal Price
1.9 % relative
Embodied Carbon
1.4 kg CO 2 /kg material
Embodied Energy
19 MJ/kg
Embodied Energy
19 MJ/kg 8.1 x 10 3 BTU/lb
Embodied Water
47 L/kg
Embodied Water
47 L/kg 5.6 gal/lb
Registered Designations & Aliases
Grade TDC Spring Steel
Standards
EN 10270-2 EN 10270-2: Steel wire for mechanical spring - Part 2: Oil hardened and tempered spring steel wire
EN 10270-2 EN 10270-2: Steel wire for mechanical spring - Part 2: Oil hardened and tempered spring steel wire Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005 Steels: Processing, Structure, and Performance, 2nd ed., George Krauss, 2015