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EN 1.7729 Steel vs. SAE-AISI 1043 Steel

Both EN 1.7729 steel and SAE-AISI 1043 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 32 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 EN 1.7729 steel and the bottom bar is SAE-AISI 1043 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
190 to 200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
13 to 18
Fatigue Strength, MPa 500
230 to 390
Poisson's Ratio 0.29
0.29
Reduction in Area, % 56
40 to 51
Shear Modulus, GPa 73
73
Shear Strength, MPa 560
400 to 430
Tensile Strength: Ultimate (UTS), MPa 910
650 to 710
Tensile Strength: Yield (Proof), MPa 750
350 to 600

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 430
400
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
1.4
Embodied Energy, MJ/kg 49
18
Embodied Water, L/kg 59
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
87 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 1500
320 to 980
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 32
23 to 25
Strength to Weight: Bending, points 27
21 to 22
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 27
21 to 22

Alloy Composition

Aluminum (Al), % 0.015 to 0.080
0
Arsenic (As), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0.17 to 0.23
0.4 to 0.47
Chromium (Cr), % 0.9 to 1.2
0
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 94.8 to 97
98.4 to 98.9
Manganese (Mn), % 0.35 to 0.75
0.7 to 1.0
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.015
0 to 0.050
Tin (Sn), % 0 to 0.020
0
Titanium (Ti), % 0.070 to 0.15
0
Vanadium (V), % 0.6 to 0.8
0