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S20431 Stainless Steel vs. EN 1.4301 Stainless Steel

Both S20431 stainless steel and EN 1.4301 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S20431 stainless steel and the bottom bar is EN 1.4301 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 46
14 to 46
Fatigue Strength, MPa 320
200 to 330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 500
430 to 550
Tensile Strength: Ultimate (UTS), MPa 710
610 to 900
Tensile Strength: Yield (Proof), MPa 350
220 to 570

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 890
940
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1360
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
15
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.5
3.0
Embodied Energy, MJ/kg 36
43
Embodied Water, L/kg 140
140

Common Calculations

PREN (Pitting Resistance) 20
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
110 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 310
120 to 820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
22 to 32
Strength to Weight: Bending, points 23
20 to 27
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 15
14 to 20

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.070
Chromium (Cr), % 17 to 18
17.5 to 19.5
Copper (Cu), % 1.5 to 3.5
0
Iron (Fe), % 66.1 to 74.4
66.8 to 74.5
Manganese (Mn), % 5.0 to 7.0
0 to 2.0
Nickel (Ni), % 2.0 to 4.0
8.0 to 10.5
Nitrogen (N), % 0.1 to 0.25
0 to 0.1
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015