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EN 1.8507 Steel vs. AISI 431 Stainless Steel

Both EN 1.8507 steel and AISI 431 stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 31 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 EN 1.8507 steel and the bottom bar is AISI 431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
15 to 17
Fatigue Strength, MPa 440
430 to 610
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 550
550 to 840
Tensile Strength: Ultimate (UTS), MPa 900
890 to 1380
Tensile Strength: Yield (Proof), MPa 670
710 to 1040

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 430
850
Melting Completion (Liquidus), °C 1450
1510
Melting Onset (Solidus), °C 1410
1450
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 41
26
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
9.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.6
2.2
Embodied Energy, MJ/kg 21
31
Embodied Water, L/kg 63
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
140 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 1210
1270 to 2770
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 32
32 to 50
Strength to Weight: Bending, points 27
27 to 36
Thermal Diffusivity, mm2/s 11
7.0
Thermal Shock Resistance, points 26
28 to 43

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.3 to 0.37
0 to 0.2
Chromium (Cr), % 1.0 to 1.3
15 to 17
Iron (Fe), % 96.1 to 97.7
78.2 to 83.8
Manganese (Mn), % 0.4 to 0.7
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0
1.3 to 2.5
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.030