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EN 1.4971 Stainless Steel vs. Grade 35 Titanium

EN 1.4971 stainless steel belongs to the iron alloys classification, while grade 35 titanium belongs to the titanium alloys. There are 28 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 35 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 34
5.6
Fatigue Strength, MPa 270
330
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 81
41
Shear Strength, MPa 530
580
Tensile Strength: Ultimate (UTS), MPa 800
1000
Tensile Strength: Yield (Proof), MPa 340
630

Thermal Properties

Latent Heat of Fusion, J/g 300
420
Maximum Temperature: Mechanical, °C 1100
320
Melting Completion (Liquidus), °C 1460
1630
Melting Onset (Solidus), °C 1410
1580
Specific Heat Capacity, J/kg-K 450
550
Thermal Conductivity, W/m-K 13
7.4
Thermal Expansion, µm/m-K 15
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 70
37
Density, g/cm3 8.4
4.6
Embodied Carbon, kg CO2/kg material 7.6
33
Embodied Energy, MJ/kg 110
530
Embodied Water, L/kg 300
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
49
Resilience: Unit (Modulus of Resilience), kJ/m3 280
1830
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 26
61
Strength to Weight: Bending, points 23
49
Thermal Diffusivity, mm2/s 3.4
3.0
Thermal Shock Resistance, points 19
70

Alloy Composition

Aluminum (Al), % 0
4.0 to 5.0
Carbon (C), % 0.080 to 0.16
0 to 0.080
Chromium (Cr), % 20 to 22.5
0
Cobalt (Co), % 18.5 to 21
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 24.3 to 37.1
0.2 to 0.8
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 2.5 to 3.5
1.5 to 2.5
Nickel (Ni), % 19 to 21
0
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0 to 0.050
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0.2 to 0.4
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
88.4 to 93
Tungsten (W), % 2.0 to 3.0
0
Vanadium (V), % 0
1.1 to 2.1
Residuals, % 0
0 to 0.4