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EN 1.4310 Stainless Steel vs. AISI 431 Stainless Steel

Both EN 1.4310 stainless steel and AISI 431 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 33 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 EN 1.4310 stainless steel and the bottom bar is AISI 431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 270
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 45
15 to 17
Fatigue Strength, MPa 240 to 330
430 to 610
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 510 to 550
550 to 840
Tensile Strength: Ultimate (UTS), MPa 730 to 900
890 to 1380
Tensile Strength: Yield (Proof), MPa 260 to 570
710 to 1040

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 410
400
Maximum Temperature: Mechanical, °C 910
850
Melting Completion (Liquidus), °C 1420
1510
Melting Onset (Solidus), °C 1380
1450
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
26
Thermal Expansion, µm/m-K 18
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 14
9.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.9
2.2
Embodied Energy, MJ/kg 42
31
Embodied Water, L/kg 140
120

Common Calculations

PREN (Pitting Resistance) 20
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 260
140 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 830
1270 to 2770
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26 to 32
32 to 50
Strength to Weight: Bending, points 23 to 27
27 to 36
Thermal Diffusivity, mm2/s 4.0
7.0
Thermal Shock Resistance, points 15 to 18
28 to 43

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.2
Chromium (Cr), % 16 to 19
15 to 17
Iron (Fe), % 66.4 to 78
78.2 to 83.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.8
0
Nickel (Ni), % 6.0 to 9.5
1.3 to 2.5
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030