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EN 1.4557 Stainless Steel vs. SAE-AISI 4042 Steel

Both EN 1.4557 stainless steel and SAE-AISI 4042 steel are iron alloys. They have 54% of their average alloy composition in common. There are 30 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 EN 1.4557 stainless steel and the bottom bar is SAE-AISI 4042 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
13
Fatigue Strength, MPa 260
360
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 560
680
Tensile Strength: Yield (Proof), MPa 300
570

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1090
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 15
49
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 29
2.1
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.6
1.5
Embodied Energy, MJ/kg 76
19
Embodied Water, L/kg 190
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
81
Resilience: Unit (Modulus of Resilience), kJ/m3 210
860
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
24
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 12
22

Alloy Composition

Carbon (C), % 0 to 0.020
0.4 to 0.45
Chromium (Cr), % 19.5 to 20.5
0
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 49.5 to 56.3
97.9 to 98.6
Manganese (Mn), % 0 to 1.2
0.7 to 0.9
Molybdenum (Mo), % 6.0 to 7.0
0.2 to 0.3
Nickel (Ni), % 17.5 to 19.5
0
Nitrogen (N), % 0.18 to 0.24
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0 to 0.040