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SAE-AISI 1055 Steel vs. EN 1.4618 Stainless Steel

Both SAE-AISI 1055 steel and EN 1.4618 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1055 steel and the bottom bar is EN 1.4618 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 14
51
Fatigue Strength, MPa 260 to 390
240 to 250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 440 to 450
480 to 500
Tensile Strength: Ultimate (UTS), MPa 730 to 750
680 to 700
Tensile Strength: Yield (Proof), MPa 400 to 630
250 to 260

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
900
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 18
39
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 85
270 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 440 to 1070
160 to 170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
24 to 25
Strength to Weight: Bending, points 23
22 to 23
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 23 to 24
15 to 16

Alloy Composition

Carbon (C), % 0.5 to 0.6
0 to 0.1
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 0
1.0 to 2.5
Iron (Fe), % 98.4 to 98.9
62.7 to 72.5
Manganese (Mn), % 0.6 to 0.9
5.5 to 9.5
Nickel (Ni), % 0
4.5 to 5.5
Nitrogen (N), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.040
0 to 0.070
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.010

Comparable Variants