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SAE-AISI 81B45 Steel vs. EN 1.1132 Steel

Both SAE-AISI 81B45 steel and EN 1.1132 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 (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 81B45 steel and the bottom bar is EN 1.1132 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 200
110 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 24
12 to 24
Fatigue Strength, MPa 250 to 350
180 to 280
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 340 to 400
260 to 310
Tensile Strength: Ultimate (UTS), MPa 540 to 670
370 to 490
Tensile Strength: Yield (Proof), MPa 350 to 560
240 to 400

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
400
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 40
51
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
18
Embodied Water, L/kg 49
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 110
38 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 320 to 840
160 to 430
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19 to 24
13 to 17
Strength to Weight: Bending, points 19 to 22
15 to 18
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 17 to 21
12 to 16

Alloy Composition

Boron (B), % 0.00050 to 0.0030
0
Carbon (C), % 0.43 to 0.48
0.13 to 0.17
Chromium (Cr), % 0.35 to 0.55
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 97 to 98
98.6 to 99.57
Manganese (Mn), % 0.75 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 0.080 to 0.15
0
Nickel (Ni), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.3
Sulfur (S), % 0 to 0.040
0 to 0.025

Comparable Variants