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S31803 Stainless Steel vs. EN 1.7233 Steel

Both S31803 stainless steel and EN 1.7233 steel are iron alloys. They have 71% 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 S31803 stainless steel and the bottom bar is EN 1.7233 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
210 to 290
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
18 to 23
Fatigue Strength, MPa 370
270 to 530
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Shear Strength, MPa 460
450 to 590
Tensile Strength: Ultimate (UTS), MPa 710
700 to 960
Tensile Strength: Yield (Proof), MPa 500
380 to 780

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1060
430
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 17
3.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.6
1.6
Embodied Energy, MJ/kg 49
21
Embodied Water, L/kg 160
53

Common Calculations

PREN (Pitting Resistance) 34
3.3
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
110 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 630
380 to 1630
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
25 to 34
Strength to Weight: Bending, points 23
22 to 28
Thermal Diffusivity, mm2/s 4.3
11
Thermal Shock Resistance, points 20
21 to 28

Alloy Composition

Carbon (C), % 0 to 0.030
0.39 to 0.45
Chromium (Cr), % 21 to 23
1.2 to 1.5
Iron (Fe), % 63.7 to 71.9
96.2 to 97.5
Manganese (Mn), % 0 to 2.0
0.4 to 0.7
Molybdenum (Mo), % 2.5 to 3.5
0.5 to 0.7
Nickel (Ni), % 4.5 to 6.5
0
Nitrogen (N), % 0.080 to 0.2
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.035