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EN 1.4948 Stainless Steel vs. Grade 4 Titanium

EN 1.4948 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 1.4948 stainless steel and the bottom bar is grade 4 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 48
17
Fatigue Strength, MPa 200
340
Impact Strength: V-Notched Charpy, J 100
23
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
41
Shear Strength, MPa 430
390
Tensile Strength: Ultimate (UTS), MPa 610
640
Tensile Strength: Yield (Proof), MPa 210
530

Thermal Properties

Latent Heat of Fusion, J/g 290
420
Maximum Temperature: Mechanical, °C 930
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 17
19
Thermal Expansion, µm/m-K 16
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
6.3

Otherwise Unclassified Properties

Base Metal Price, % relative 15
37
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 3.0
31
Embodied Energy, MJ/kg 43
500
Embodied Water, L/kg 140
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
100
Resilience: Unit (Modulus of Resilience), kJ/m3 110
1330
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 22
40
Strength to Weight: Bending, points 21
37
Thermal Diffusivity, mm2/s 4.5
7.6
Thermal Shock Resistance, points 14
46

Alloy Composition

Carbon (C), % 0.040 to 0.080
0 to 0.080
Chromium (Cr), % 17 to 19
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 66.8 to 75
0 to 0.5
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 8.0 to 11
0
Nitrogen (N), % 0 to 0.1
0 to 0.050
Oxygen (O), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
98.6 to 100
Residuals, % 0
0 to 0.4