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S20431 Stainless Steel vs. EN 1.7366 Steel

Both S20431 stainless steel and EN 1.7366 steel are iron alloys. They have 76% 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 S20431 stainless steel and the bottom bar is EN 1.7366 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
140 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 46
17 to 19
Fatigue Strength, MPa 320
160 to 320
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
74
Shear Strength, MPa 500
290 to 440
Tensile Strength: Ultimate (UTS), MPa 710
460 to 710
Tensile Strength: Yield (Proof), MPa 350
230 to 480

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 890
510
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
4.3
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.5
1.7
Embodied Energy, MJ/kg 36
23
Embodied Water, L/kg 140
69

Common Calculations

PREN (Pitting Resistance) 20
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
74 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 310
140 to 600
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
16 to 25
Strength to Weight: Bending, points 23
17 to 23
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 15
13 to 20

Alloy Composition

Carbon (C), % 0 to 0.12
0 to 0.18
Chromium (Cr), % 17 to 18
4.0 to 6.0
Copper (Cu), % 1.5 to 3.5
0
Iron (Fe), % 66.1 to 74.4
91.9 to 95.3
Manganese (Mn), % 5.0 to 7.0
0.3 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
Nickel (Ni), % 2.0 to 4.0
0
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015