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EN 1.4303 Stainless Steel vs. Grade 34 Titanium

EN 1.4303 stainless steel belongs to the iron alloys classification, while grade 34 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 EN 1.4303 stainless steel and the bottom bar is grade 34 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 13 to 49
20
Fatigue Strength, MPa 220 to 320
310
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
41
Shear Strength, MPa 420 to 540
320
Tensile Strength: Ultimate (UTS), MPa 590 to 900
510
Tensile Strength: Yield (Proof), MPa 230 to 560
450

Thermal Properties

Latent Heat of Fusion, J/g 290
420
Maximum Temperature: Mechanical, °C 940
320
Melting Completion (Liquidus), °C 1420
1660
Melting Onset (Solidus), °C 1380
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 16
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 17
55
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 3.2
33
Embodied Energy, MJ/kg 46
530
Embodied Water, L/kg 150
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 230
100
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
960
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 21 to 32
31
Strength to Weight: Bending, points 20 to 26
31
Thermal Diffusivity, mm2/s 4.0
8.4
Thermal Shock Resistance, points 13 to 20
39

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.080
Chromium (Cr), % 17 to 19
0.1 to 0.2
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 64.8 to 72
0 to 0.3
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 11 to 13
0.35 to 0.55
Nitrogen (N), % 0 to 0.1
0 to 0.050
Oxygen (O), % 0
0 to 0.35
Palladium (Pd), % 0
0.010 to 0.020
Phosphorus (P), % 0 to 0.045
0
Ruthenium (Ru), % 0
0.020 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
98 to 99.52
Residuals, % 0
0 to 0.4