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EN 1.4971 Stainless Steel vs. Grade 36 Titanium

EN 1.4971 stainless steel belongs to the iron alloys classification, while grade 36 titanium belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4971 stainless steel and the bottom bar is grade 36 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 34
11
Fatigue Strength, MPa 270
300
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 81
39
Shear Strength, MPa 530
320
Tensile Strength: Ultimate (UTS), MPa 800
530
Tensile Strength: Yield (Proof), MPa 340
520

Thermal Properties

Latent Heat of Fusion, J/g 300
370
Maximum Temperature: Mechanical, °C 1100
320
Melting Completion (Liquidus), °C 1460
2020
Melting Onset (Solidus), °C 1410
1950
Specific Heat Capacity, J/kg-K 450
420
Thermal Expansion, µm/m-K 15
8.1

Otherwise Unclassified Properties

Density, g/cm3 8.4
6.3
Embodied Carbon, kg CO2/kg material 7.6
58
Embodied Energy, MJ/kg 110
920
Embodied Water, L/kg 300
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
59
Resilience: Unit (Modulus of Resilience), kJ/m3 280
1260
Stiffness to Weight: Axial, points 14
9.3
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
23
Strength to Weight: Bending, points 23
23
Thermal Shock Resistance, points 19
45

Alloy Composition

Carbon (C), % 0.080 to 0.16
0 to 0.030
Chromium (Cr), % 20 to 22.5
0
Cobalt (Co), % 18.5 to 21
0
Hydrogen (H), % 0
0 to 0.0035
Iron (Fe), % 24.3 to 37.1
0 to 0.030
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 0.75 to 1.3
42 to 47
Nitrogen (N), % 0.1 to 0.2
0 to 0.030
Oxygen (O), % 0
0 to 0.16
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
52.3 to 58
Tungsten (W), % 2.0 to 3.0
0
Residuals, % 0
0 to 0.4