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EN 1.4935 Stainless Steel vs. SAE-AISI 5145 Steel

Both EN 1.4935 stainless steel and SAE-AISI 5145 steel are iron alloys. They have 87% of their average alloy composition in common. There are 30 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 1.4935 stainless steel and the bottom bar is SAE-AISI 5145 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 16 to 18
20
Fatigue Strength, MPa 350 to 400
250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 480 to 540
350
Tensile Strength: Ultimate (UTS), MPa 780 to 880
560
Tensile Strength: Yield (Proof), MPa 570 to 670
370

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 740
420
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 24
47
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.9
1.4
Embodied Energy, MJ/kg 42
19
Embodied Water, L/kg 100
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
100
Resilience: Unit (Modulus of Resilience), kJ/m3 830 to 1160
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 31
20
Strength to Weight: Bending, points 24 to 26
19
Thermal Diffusivity, mm2/s 6.5
13
Thermal Shock Resistance, points 27 to 30
17

Alloy Composition

Carbon (C), % 0.17 to 0.24
0.43 to 0.48
Chromium (Cr), % 11 to 12.5
0.7 to 0.9
Iron (Fe), % 83 to 86.7
97.3 to 98
Manganese (Mn), % 0.3 to 0.8
0.7 to 0.9
Molybdenum (Mo), % 0.8 to 1.2
0
Nickel (Ni), % 0.3 to 0.8
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0.1 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040
Tungsten (W), % 0.4 to 0.6
0
Vanadium (V), % 0.2 to 0.35
0