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S45503 Stainless Steel vs. S31266 Stainless Steel

Both S45503 stainless steel and S31266 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S45503 stainless steel and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 4.6 to 6.8
40
Fatigue Strength, MPa 710 to 800
400
Poisson's Ratio 0.28
0.28
Reduction in Area, % 17 to 28
56
Shear Modulus, GPa 75
81
Shear Strength, MPa 940 to 1070
590
Tensile Strength: Ultimate (UTS), MPa 1610 to 1850
860
Tensile Strength: Yield (Proof), MPa 1430 to 1700
470

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 640
440
Maximum Temperature: Mechanical, °C 760
1100
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 15
37
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 3.4
6.5
Embodied Energy, MJ/kg 48
89
Embodied Water, L/kg 120
220

Common Calculations

PREN (Pitting Resistance) 13
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 82 to 110
290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 57 to 65
29
Strength to Weight: Bending, points 39 to 43
24
Thermal Shock Resistance, points 56 to 64
18

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.030
Chromium (Cr), % 11 to 12.5
23 to 25
Copper (Cu), % 1.5 to 2.5
1.0 to 2.5
Iron (Fe), % 72.4 to 78.9
34.1 to 46
Manganese (Mn), % 0 to 0.5
2.0 to 4.0
Molybdenum (Mo), % 0 to 0.5
5.2 to 6.2
Nickel (Ni), % 7.5 to 9.5
21 to 24
Niobium (Nb), % 0.1 to 0.5
0
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0 to 0.2
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 1.0 to 1.4
0
Tungsten (W), % 0
1.5 to 2.5