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S21603 Stainless Steel vs. Grade 38 Titanium

S21603 stainless steel belongs to the iron alloys classification, while grade 38 titanium belongs to the titanium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is S21603 stainless steel and the bottom bar is grade 38 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 45
11
Fatigue Strength, MPa 360
530
Poisson's Ratio 0.28
0.32
Reduction in Area, % 57
29
Shear Modulus, GPa 79
40
Shear Strength, MPa 490
600
Tensile Strength: Ultimate (UTS), MPa 690
1000
Tensile Strength: Yield (Proof), MPa 390
910

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Maximum Temperature: Mechanical, °C 990
330
Melting Completion (Liquidus), °C 1420
1620
Melting Onset (Solidus), °C 1380
1570
Specific Heat Capacity, J/kg-K 480
550
Thermal Expansion, µm/m-K 17
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 17
36
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 3.6
35
Embodied Energy, MJ/kg 50
560
Embodied Water, L/kg 160
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
110
Resilience: Unit (Modulus of Resilience), kJ/m3 380
3840
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 25
62
Strength to Weight: Bending, points 22
49
Thermal Shock Resistance, points 15
72

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.5
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 17.5 to 22
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 57.6 to 67.8
1.2 to 1.8
Manganese (Mn), % 7.5 to 9.0
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 5.0 to 7.0
0
Nitrogen (N), % 0.25 to 0.5
0 to 0.030
Oxygen (O), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
89.9 to 93.1
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4