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S41425 Stainless Steel vs. Grade 37 Titanium

S41425 stainless steel belongs to the iron alloys classification, while grade 37 titanium belongs to the titanium alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S41425 stainless steel and the bottom bar is grade 37 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 17
22
Fatigue Strength, MPa 450
170
Poisson's Ratio 0.28
0.32
Reduction in Area, % 51
34
Shear Modulus, GPa 77
40
Shear Strength, MPa 570
240
Tensile Strength: Ultimate (UTS), MPa 920
390
Tensile Strength: Yield (Proof), MPa 750
250

Thermal Properties

Latent Heat of Fusion, J/g 280
420
Maximum Temperature: Mechanical, °C 810
310
Melting Completion (Liquidus), °C 1450
1650
Melting Onset (Solidus), °C 1410
1600
Specific Heat Capacity, J/kg-K 470
550
Thermal Conductivity, W/m-K 16
21
Thermal Expansion, µm/m-K 10
8.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
6.8

Otherwise Unclassified Properties

Base Metal Price, % relative 13
36
Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 2.9
31
Embodied Energy, MJ/kg 40
500
Embodied Water, L/kg 120
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
76
Resilience: Unit (Modulus of Resilience), kJ/m3 1420
280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 33
24
Strength to Weight: Bending, points 27
26
Thermal Diffusivity, mm2/s 4.4
8.4
Thermal Shock Resistance, points 33
29

Alloy Composition

Aluminum (Al), % 0
1.0 to 2.0
Carbon (C), % 0 to 0.050
0 to 0.080
Chromium (Cr), % 12 to 15
0
Copper (Cu), % 0 to 0.3
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 74 to 81.9
0 to 0.3
Manganese (Mn), % 0.5 to 1.0
0
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 4.0 to 7.0
0
Nitrogen (N), % 0.060 to 0.12
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.0050
0
Titanium (Ti), % 0
96.9 to 99
Residuals, % 0
0 to 0.4