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SAE-AISI 9254 Steel vs. S45503 Stainless Steel

Both SAE-AISI 9254 steel and S45503 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 9254 steel and the bottom bar is S45503 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
410 to 500
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
4.6 to 6.8
Fatigue Strength, MPa 280
710 to 800
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
75
Shear Strength, MPa 410
940 to 1070
Tensile Strength: Ultimate (UTS), MPa 660
1610 to 1850
Tensile Strength: Yield (Proof), MPa 410
1430 to 1700

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 410
760
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 13
11

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
15
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.5
3.4
Embodied Energy, MJ/kg 20
48
Embodied Water, L/kg 49
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
82 to 110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
57 to 65
Strength to Weight: Bending, points 22
39 to 43
Thermal Shock Resistance, points 20
56 to 64

Alloy Composition

Carbon (C), % 0.51 to 0.59
0 to 0.010
Chromium (Cr), % 0.6 to 0.8
11 to 12.5
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 96.1 to 97.1
72.4 to 78.9
Manganese (Mn), % 0.6 to 0.8
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
7.5 to 9.5
Niobium (Nb), % 0
0.1 to 0.5
Phosphorus (P), % 0 to 0.035
0 to 0.010
Silicon (Si), % 1.2 to 1.6
0 to 0.2
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.4