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S31803 Stainless Steel vs. EN 1.4913 Stainless Steel

Both S31803 stainless steel and EN 1.4913 stainless steel are iron alloys. They have 81% 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 1.4913 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
14 to 22
Fatigue Strength, MPa 370
320 to 480
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
75
Shear Strength, MPa 460
550 to 590
Tensile Strength: Ultimate (UTS), MPa 710
870 to 980
Tensile Strength: Yield (Proof), MPa 500
480 to 850

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 430
430
Maximum Temperature: Mechanical, °C 1060
700
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
24
Thermal Expansion, µm/m-K 13
11

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 17
9.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.6
2.9
Embodied Energy, MJ/kg 49
41
Embodied Water, L/kg 160
97

Common Calculations

PREN (Pitting Resistance) 34
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
130 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 630
600 to 1860
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
31 to 35
Strength to Weight: Bending, points 23
26 to 28
Thermal Diffusivity, mm2/s 4.3
6.5
Thermal Shock Resistance, points 20
31 to 34

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0 to 0.0015
Carbon (C), % 0 to 0.030
0.17 to 0.23
Chromium (Cr), % 21 to 23
10 to 11.5
Iron (Fe), % 63.7 to 71.9
84.5 to 88.3
Manganese (Mn), % 0 to 2.0
0.4 to 0.9
Molybdenum (Mo), % 2.5 to 3.5
0.5 to 0.8
Nickel (Ni), % 4.5 to 6.5
0.2 to 0.6
Niobium (Nb), % 0
0.25 to 0.55
Nitrogen (N), % 0.080 to 0.2
0.050 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.015
Vanadium (V), % 0
0.1 to 0.3