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S30415 Stainless Steel vs. Grade C-3 Titanium

S30415 stainless steel belongs to the iron alloys classification, while grade C-3 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S30415 stainless steel and the bottom bar is grade C-3 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 45
13
Fatigue Strength, MPa 300
260
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 670
500
Tensile Strength: Yield (Proof), MPa 330
430

Thermal Properties

Latent Heat of Fusion, J/g 300
420
Maximum Temperature: Mechanical, °C 940
320
Melting Completion (Liquidus), °C 1410
1660
Melting Onset (Solidus), °C 1370
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 21
21
Thermal Expansion, µm/m-K 17
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
3.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 15
37
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 3.1
31
Embodied Energy, MJ/kg 43
510
Embodied Water, L/kg 140
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
65
Resilience: Unit (Modulus of Resilience), kJ/m3 280
880
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 24
31
Strength to Weight: Bending, points 22
31
Thermal Diffusivity, mm2/s 5.6
8.5
Thermal Shock Resistance, points 15
39

Alloy Composition

Carbon (C), % 0.040 to 0.060
0 to 0.1
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 18 to 19
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 67.8 to 71.8
0 to 0.25
Manganese (Mn), % 0 to 0.8
0
Nickel (Ni), % 9.0 to 10
0 to 0.050
Nitrogen (N), % 0.12 to 0.18
0
Oxygen (O), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 1.0 to 2.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
98.8 to 100
Residuals, % 0
0 to 0.4