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AISI 420 Stainless Steel vs. S45503 Stainless Steel

Both AISI 420 stainless steel and S45503 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AISI 420 stainless steel and the bottom bar is S45503 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
410 to 500
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.0 to 15
4.6 to 6.8
Fatigue Strength, MPa 220 to 670
710 to 800
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Shear Strength, MPa 420 to 1010
940 to 1070
Tensile Strength: Ultimate (UTS), MPa 690 to 1720
1610 to 1850
Tensile Strength: Yield (Proof), MPa 380 to 1310
1430 to 1700

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 390
640
Maximum Temperature: Mechanical, °C 620
760
Melting Completion (Liquidus), °C 1510
1440
Melting Onset (Solidus), °C 1450
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 10
11

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
15
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
3.4
Embodied Energy, MJ/kg 28
48
Embodied Water, L/kg 100
120

Common Calculations

PREN (Pitting Resistance) 14
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 130
82 to 110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 62
57 to 65
Strength to Weight: Bending, points 22 to 41
39 to 43
Thermal Shock Resistance, points 25 to 62
56 to 64

Alloy Composition

Carbon (C), % 0.15 to 0.4
0 to 0.010
Chromium (Cr), % 12 to 14
11 to 12.5
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 82.3 to 87.9
72.4 to 78.9
Manganese (Mn), % 0 to 1.0
0 to 0.5
Molybdenum (Mo), % 0 to 0.5
0 to 0.5
Nickel (Ni), % 0 to 0.75
7.5 to 9.5
Niobium (Nb), % 0
0.1 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.2
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.4