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EN 1.8527 Steel vs. AISI 418 Stainless Steel

Both EN 1.8527 steel and AISI 418 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.8527 steel and the bottom bar is AISI 418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
17
Fatigue Strength, MPa 520
520
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Shear Strength, MPa 550
680
Tensile Strength: Ultimate (UTS), MPa 900
1100
Tensile Strength: Yield (Proof), MPa 800
850

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Maximum Temperature: Mechanical, °C 490
770
Melting Completion (Liquidus), °C 1460
1500
Melting Onset (Solidus), °C 1420
1460
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 41
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
15
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.7
2.9
Embodied Energy, MJ/kg 23
41
Embodied Water, L/kg 66
110

Common Calculations

PREN (Pitting Resistance) 5.7
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
170
Resilience: Unit (Modulus of Resilience), kJ/m3 1670
1830
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 32
38
Strength to Weight: Bending, points 26
29
Thermal Diffusivity, mm2/s 11
6.7
Thermal Shock Resistance, points 26
40

Alloy Composition

Carbon (C), % 0.040 to 0.12
0.15 to 0.2
Chromium (Cr), % 3.7 to 4.3
12 to 14
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 93.2 to 95.1
78.5 to 83.6
Manganese (Mn), % 0.85 to 1.2
0 to 0.5
Molybdenum (Mo), % 0.4 to 0.6
0 to 0.5
Nickel (Ni), % 0
1.8 to 2.2
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.035
0 to 0.030
Tungsten (W), % 0
2.5 to 3.5