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EN 1.4477 Stainless Steel vs. Grade 4 Titanium

EN 1.4477 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 1.4477 stainless steel and the bottom bar is grade 4 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
200
Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 22 to 23
17
Fatigue Strength, MPa 420 to 490
340
Impact Strength: V-Notched Charpy, J 110
23
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 81
41
Shear Strength, MPa 550 to 580
390
Tensile Strength: Ultimate (UTS), MPa 880 to 930
640
Tensile Strength: Yield (Proof), MPa 620 to 730
530

Thermal Properties

Latent Heat of Fusion, J/g 300
420
Maximum Temperature: Mechanical, °C 1100
320
Melting Completion (Liquidus), °C 1430
1660
Melting Onset (Solidus), °C 1380
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 13
19
Thermal Expansion, µm/m-K 13
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
37
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 3.7
31
Embodied Energy, MJ/kg 52
500
Embodied Water, L/kg 190
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
100
Resilience: Unit (Modulus of Resilience), kJ/m3 940 to 1290
1330
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 31 to 33
40
Strength to Weight: Bending, points 26 to 27
37
Thermal Diffusivity, mm2/s 3.5
7.6
Thermal Shock Resistance, points 23 to 25
46

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 28 to 30
0
Copper (Cu), % 0 to 0.8
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 56.6 to 63.6
0 to 0.5
Manganese (Mn), % 0.8 to 1.5
0
Molybdenum (Mo), % 1.5 to 2.6
0
Nickel (Ni), % 5.8 to 7.5
0
Nitrogen (N), % 0.3 to 0.4
0 to 0.050
Oxygen (O), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
98.6 to 100
Residuals, % 0
0 to 0.4