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AISI 431 Stainless Steel vs. EN 1.7230 Steel

Both AISI 431 stainless steel and EN 1.7230 steel are iron alloys. They have 83% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 431 stainless steel and the bottom bar is EN 1.7230 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
220 to 270
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 15 to 17
11 to 12
Fatigue Strength, MPa 430 to 610
320 to 460
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 890 to 1380
720 to 910
Tensile Strength: Yield (Proof), MPa 710 to 1040
510 to 740

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 850
420
Melting Completion (Liquidus), °C 1510
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 26
44
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
2.4
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.5
Embodied Energy, MJ/kg 31
20
Embodied Water, L/kg 120
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 180
79 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 1270 to 2770
700 to 1460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 50
26 to 32
Strength to Weight: Bending, points 27 to 36
23 to 27
Thermal Diffusivity, mm2/s 7.0
12
Thermal Shock Resistance, points 28 to 43
21 to 27

Alloy Composition

Carbon (C), % 0 to 0.2
0.3 to 0.37
Chromium (Cr), % 15 to 17
0.8 to 1.2
Iron (Fe), % 78.2 to 83.8
96.7 to 98.3
Manganese (Mn), % 0 to 1.0
0.5 to 0.8
Molybdenum (Mo), % 0
0.15 to 0.3
Nickel (Ni), % 1.3 to 2.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030

Comparable Variants