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S21603 Stainless Steel vs. ACI-ASTM CA40 Steel

Both S21603 stainless steel and ACI-ASTM CA40 steel are iron alloys. They have 77% 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 ACI-ASTM CA40 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
310
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
10
Fatigue Strength, MPa 360
460
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 690
910
Tensile Strength: Yield (Proof), MPa 390
860

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 990
750
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1500
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
10

Otherwise Unclassified Properties

Base Metal Price, % relative 17
7.5
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.6
2.0
Embodied Energy, MJ/kg 50
28
Embodied Water, L/kg 160
100

Common Calculations

PREN (Pitting Resistance) 34
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
89
Resilience: Unit (Modulus of Resilience), kJ/m3 380
1910
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
33
Strength to Weight: Bending, points 22
27
Thermal Shock Resistance, points 15
33

Alloy Composition

Carbon (C), % 0 to 0.030
0.2 to 0.4
Chromium (Cr), % 17.5 to 22
11.5 to 14
Iron (Fe), % 57.6 to 67.8
81.5 to 88.3
Manganese (Mn), % 7.5 to 9.0
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0 to 0.5
Nickel (Ni), % 5.0 to 7.0
0 to 1.0
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 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040