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SAE-AISI 1045 Steel vs. S33228 Stainless Steel

Both SAE-AISI 1045 steel and S33228 stainless steel are iron alloys. They have a modest 40% of their average alloy composition in common, which, by itself, doesn't mean much. 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 SAE-AISI 1045 steel and the bottom bar is S33228 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 190
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 13 to 18
34
Fatigue Strength, MPa 220 to 370
170
Poisson's Ratio 0.29
0.28
Reduction in Area, % 40 to 51
39
Shear Modulus, GPa 72
79
Shear Strength, MPa 380 to 410
380
Tensile Strength: Ultimate (UTS), MPa 620 to 680
570
Tensile Strength: Yield (Proof), MPa 330 to 580
210

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
37
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.4
6.2
Embodied Energy, MJ/kg 18
89
Embodied Water, L/kg 46
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 93
150
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 900
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 24
20
Strength to Weight: Bending, points 21 to 22
19
Thermal Shock Resistance, points 20 to 22
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.025
Carbon (C), % 0.43 to 0.5
0.040 to 0.080
Cerium (Ce), % 0
0.050 to 0.1
Chromium (Cr), % 0
26 to 28
Iron (Fe), % 98.5 to 99
36.5 to 42.3
Manganese (Mn), % 0.6 to 0.9
0 to 1.0
Nickel (Ni), % 0
31 to 33
Niobium (Nb), % 0
0.6 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0
0 to 0.3
Sulfur (S), % 0 to 0.050
0 to 0.015