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EN 1.7729 Steel vs. SAE-AISI 1132 Steel

Both EN 1.7729 steel and SAE-AISI 1132 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 1132 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
190 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
14 to 18
Fatigue Strength, MPa 500
240 to 380
Poisson's Ratio 0.29
0.29
Reduction in Area, % 56
39 to 46
Shear Modulus, GPa 73
73
Shear Strength, MPa 560
400 to 440
Tensile Strength: Ultimate (UTS), MPa 910
640 to 720
Tensile Strength: Yield (Proof), MPa 750
350 to 590

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
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
1.4
Embodied Energy, MJ/kg 49
19
Embodied Water, L/kg 59
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
93 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 1500
330 to 940
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 23
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 27
19 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
0.24 to 0.34
Chromium (Cr), % 0.9 to 1.2
0
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 94.8 to 97
97.8 to 98.3
Manganese (Mn), % 0.35 to 0.75
1.4 to 1.7
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
0.080 to 0.13
Tin (Sn), % 0 to 0.020
0
Titanium (Ti), % 0.070 to 0.15
0
Vanadium (V), % 0.6 to 0.8
0