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EN 1.4369 Stainless Steel vs. Grade 4 Titanium

EN 1.4369 stainless steel belongs to the iron alloys classification, while grade 4 titanium belongs to the titanium alloys. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4369 stainless steel and the bottom bar is grade 4 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
200
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 40
17
Fatigue Strength, MPa 330
340
Impact Strength: V-Notched Charpy, J 91
23
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
41
Shear Strength, MPa 580
390
Tensile Strength: Ultimate (UTS), MPa 850
640
Tensile Strength: Yield (Proof), MPa 390
530

Thermal Properties

Latent Heat of Fusion, J/g 290
420
Maximum Temperature: Mechanical, °C 940
320
Melting Completion (Liquidus), °C 1400
1660
Melting Onset (Solidus), °C 1360
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 15
19
Thermal Expansion, µm/m-K 17
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 14
37
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 3.0
31
Embodied Energy, MJ/kg 43
500
Embodied Water, L/kg 150
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
100
Resilience: Unit (Modulus of Resilience), kJ/m3 380
1330
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 31
40
Strength to Weight: Bending, points 26
37
Thermal Diffusivity, mm2/s 4.0
7.6
Thermal Shock Resistance, points 18
46

Alloy Composition

Carbon (C), % 0.070 to 0.15
0 to 0.080
Chromium (Cr), % 17.5 to 19.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 63 to 70.2
0 to 0.5
Manganese (Mn), % 5.0 to 7.5
0
Nickel (Ni), % 6.5 to 8.5
0
Nitrogen (N), % 0.2 to 0.3
0 to 0.050
Oxygen (O), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.5 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
98.6 to 100
Residuals, % 0
0 to 0.4