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EN 1.4923 Stainless Steel vs. S31803 Stainless Steel

Both EN 1.4923 stainless steel and S31803 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 33 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 EN 1.4923 stainless steel and the bottom bar is S31803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 21
29
Fatigue Strength, MPa 300 to 440
370
Poisson's Ratio 0.28
0.27
Reduction in Area, % 40 to 46
50
Shear Modulus, GPa 76
80
Shear Strength, MPa 540 to 590
460
Tensile Strength: Ultimate (UTS), MPa 870 to 980
710
Tensile Strength: Yield (Proof), MPa 470 to 780
500

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 380
430
Maximum Temperature: Mechanical, °C 740
1060
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 24
16
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
17
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.9
3.6
Embodied Energy, MJ/kg 41
49
Embodied Water, L/kg 100
160

Common Calculations

PREN (Pitting Resistance) 15
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 150
180
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 1580
630
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 35
25
Strength to Weight: Bending, points 26 to 28
23
Thermal Diffusivity, mm2/s 6.5
4.3
Thermal Shock Resistance, points 30 to 34
20

Alloy Composition

Carbon (C), % 0.18 to 0.24
0 to 0.030
Chromium (Cr), % 11 to 12.5
21 to 23
Iron (Fe), % 83.5 to 87.1
63.7 to 71.9
Manganese (Mn), % 0.4 to 0.9
0 to 2.0
Molybdenum (Mo), % 0.8 to 1.2
2.5 to 3.5
Nickel (Ni), % 0.3 to 0.8
4.5 to 6.5
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020
Vanadium (V), % 0.25 to 0.35
0