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SAE-AISI 1042 Steel vs. EN 1.8958 Steel

Both SAE-AISI 1042 steel and EN 1.8958 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1042 steel and the bottom bar is EN 1.8958 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 200
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 14 to 18
19
Fatigue Strength, MPa 230 to 370
150
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 380 to 420
270
Tensile Strength: Ultimate (UTS), MPa 620 to 700
430
Tensile Strength: Yield (Proof), MPa 340 to 580
220

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
46
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
19
Embodied Water, L/kg 46
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 94
70
Resilience: Unit (Modulus of Resilience), kJ/m3 320 to 900
130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 25
15
Strength to Weight: Bending, points 21 to 22
16
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 20 to 22
13

Alloy Composition

Carbon (C), % 0.4 to 0.47
0 to 0.16
Chromium (Cr), % 0
0.35 to 0.85
Copper (Cu), % 0
0.2 to 0.6
Iron (Fe), % 98.5 to 99
96.5 to 99.3
Manganese (Mn), % 0.6 to 0.9
0.15 to 0.7
Nickel (Ni), % 0
0 to 0.7
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 0.45
Sulfur (S), % 0 to 0.050
0 to 0.040