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S21603 Stainless Steel vs. SAE-AISI 1055 Steel

Both S21603 stainless steel and SAE-AISI 1055 steel are iron alloys. They have 64% 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 S21603 stainless steel and the bottom bar is SAE-AISI 1055 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
11 to 14
Fatigue Strength, MPa 360
260 to 390
Poisson's Ratio 0.28
0.29
Reduction in Area, % 57
34 to 45
Shear Modulus, GPa 79
72
Shear Strength, MPa 490
440 to 450
Tensile Strength: Ultimate (UTS), MPa 690
730 to 750
Tensile Strength: Yield (Proof), MPa 390
400 to 630

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 990
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 17
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.6
1.4
Embodied Energy, MJ/kg 50
18
Embodied Water, L/kg 160
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
80 to 85
Resilience: Unit (Modulus of Resilience), kJ/m3 380
440 to 1070
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
26
Strength to Weight: Bending, points 22
23
Thermal Shock Resistance, points 15
23 to 24

Alloy Composition

Carbon (C), % 0 to 0.030
0.5 to 0.6
Chromium (Cr), % 17.5 to 22
0
Iron (Fe), % 57.6 to 67.8
98.4 to 98.9
Manganese (Mn), % 7.5 to 9.0
0.6 to 0.9
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 5.0 to 7.0
0
Nitrogen (N), % 0.25 to 0.5
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0 to 0.050