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EN 1.4981 Stainless Steel vs. Grade TDC Steel

Both EN 1.4981 stainless steel and grade TDC steel are iron alloys. They have 64% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4981 stainless steel and the bottom bar is grade TDC steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
510
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 610
1700

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
400
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
51
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 25
1.9
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.8
1.4
Embodied Energy, MJ/kg 67
19
Embodied Water, L/kg 150
47

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
60
Strength to Weight: Bending, points 20
40
Thermal Diffusivity, mm2/s 4.3
14
Thermal Shock Resistance, points 14
50

Alloy Composition

Carbon (C), % 0.040 to 0.1
0.6 to 0.75
Chromium (Cr), % 15.5 to 17.5
0 to 0.3
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 59.6 to 66.7
98 to 99.4
Manganese (Mn), % 0 to 1.5
0.5 to 1.2
Molybdenum (Mo), % 1.6 to 2.0
0
Nickel (Ni), % 15.5 to 17.5
0
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0.3 to 0.6
0.1 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.020