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EN 1.4658 Stainless Steel vs. SAE-AISI 1042 Steel

Both EN 1.4658 stainless steel and SAE-AISI 1042 steel are iron alloys. They have 58% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4658 stainless steel and the bottom bar is SAE-AISI 1042 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 28
14 to 18
Fatigue Strength, MPa 530
230 to 370
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
73
Shear Strength, MPa 580
380 to 420
Tensile Strength: Ultimate (UTS), MPa 900
620 to 700
Tensile Strength: Yield (Proof), MPa 730
340 to 580

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
52
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.5
1.4
Embodied Energy, MJ/kg 61
18
Embodied Water, L/kg 200
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
87 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
320 to 900
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32
22 to 25
Strength to Weight: Bending, points 26
21 to 22
Thermal Diffusivity, mm2/s 4.3
14
Thermal Shock Resistance, points 24
20 to 22

Alloy Composition

Carbon (C), % 0 to 0.030
0.4 to 0.47
Chromium (Cr), % 26 to 29
0
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 50.9 to 63.7
98.5 to 99
Manganese (Mn), % 0 to 1.5
0.6 to 0.9
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 5.5 to 9.5
0
Nitrogen (N), % 0.3 to 0.5
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.010
0 to 0.050