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SAE-AISI 81B45 Steel vs. EN 1.4869 Casting Alloy

SAE-AISI 81B45 steel belongs to the iron alloys classification, while EN 1.4869 casting alloy belongs to the nickel alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, 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 1.4869 casting alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 12 to 24
5.7
Fatigue Strength, MPa 250 to 350
130
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
80
Tensile Strength: Ultimate (UTS), MPa 540 to 670
540
Tensile Strength: Yield (Proof), MPa 350 to 560
310

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 410
1200
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 40
10
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
70
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 1.5
7.7
Embodied Energy, MJ/kg 20
110
Embodied Water, L/kg 49
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 110
26
Resilience: Unit (Modulus of Resilience), kJ/m3 320 to 840
230
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 19 to 24
18
Strength to Weight: Bending, points 19 to 22
17
Thermal Diffusivity, mm2/s 11
2.6
Thermal Shock Resistance, points 17 to 21
14

Alloy Composition

Boron (B), % 0.00050 to 0.0030
0
Carbon (C), % 0.43 to 0.48
0.45 to 0.55
Chromium (Cr), % 0.35 to 0.55
24 to 26
Cobalt (Co), % 0
14 to 16
Iron (Fe), % 97 to 98
11.4 to 23.6
Manganese (Mn), % 0.75 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.080 to 0.15
0
Nickel (Ni), % 0.2 to 0.4
33 to 37
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
1.0 to 2.0
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
4.0 to 6.0