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EN 1.4303 Stainless Steel vs. Titanium 4-4-2

EN 1.4303 stainless steel belongs to the iron alloys classification, while titanium 4-4-2 belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (7, 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 titanium 4-4-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 13 to 49
10
Fatigue Strength, MPa 220 to 320
590 to 620
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
42
Shear Strength, MPa 420 to 540
690 to 750
Tensile Strength: Ultimate (UTS), MPa 590 to 900
1150 to 1250
Tensile Strength: Yield (Proof), MPa 230 to 560
1030 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Maximum Temperature: Mechanical, °C 940
310
Melting Completion (Liquidus), °C 1420
1610
Melting Onset (Solidus), °C 1380
1560
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 15
6.7
Thermal Expansion, µm/m-K 16
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 17
39
Density, g/cm3 7.8
4.7
Embodied Carbon, kg CO2/kg material 3.2
30
Embodied Energy, MJ/kg 46
480
Embodied Water, L/kg 150
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 230
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
4700 to 5160
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
34
Strength to Weight: Axial, points 21 to 32
68 to 74
Strength to Weight: Bending, points 20 to 26
52 to 55
Thermal Diffusivity, mm2/s 4.0
2.6
Thermal Shock Resistance, points 13 to 20
86 to 93

Alloy Composition

Aluminum (Al), % 0
3.0 to 5.0
Carbon (C), % 0 to 0.060
0 to 0.080
Chromium (Cr), % 17 to 19
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 64.8 to 72
0 to 0.2
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 11 to 13
0
Nitrogen (N), % 0 to 0.1
0 to 0.050
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0.3 to 0.7
Sulfur (S), % 0 to 0.015
0
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 0
85.8 to 92.2
Residuals, % 0
0 to 0.4

Comparable Variants