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S31803 Stainless Steel vs. EN 1.4529 Stainless Steel

Both S31803 stainless steel and EN 1.4529 stainless steel are iron alloys. They have 76% 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 S31803 stainless steel and the bottom bar is EN 1.4529 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 29
43
Fatigue Strength, MPa 370
310
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
80
Shear Strength, MPa 460
520
Tensile Strength: Ultimate (UTS), MPa 710
750
Tensile Strength: Yield (Proof), MPa 500
340

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 430
420
Maximum Temperature: Mechanical, °C 1060
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 16
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 17
33
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.6
6.2
Embodied Energy, MJ/kg 49
84
Embodied Water, L/kg 160
200

Common Calculations

PREN (Pitting Resistance) 34
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
260
Resilience: Unit (Modulus of Resilience), kJ/m3 630
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
26
Strength to Weight: Bending, points 23
23
Thermal Diffusivity, mm2/s 4.3
3.2
Thermal Shock Resistance, points 20
17

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 21 to 23
19 to 21
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 63.7 to 71.9
42.7 to 50.4
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
6.0 to 7.0
Nickel (Ni), % 4.5 to 6.5
24 to 26
Nitrogen (N), % 0.080 to 0.2
0.15 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.010