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ACI-ASTM CA40 Steel vs. AISI 301L Stainless Steel

Both ACI-ASTM CA40 steel and AISI 301L stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA40 steel and the bottom bar is AISI 301L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
210 to 320
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 10
22 to 50
Fatigue Strength, MPa 460
240 to 530
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 910
620 to 1040
Tensile Strength: Yield (Proof), MPa 860
250 to 790

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 750
890
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1500
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
13
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
2.7
Embodied Energy, MJ/kg 28
39
Embodied Water, L/kg 100
130

Common Calculations

PREN (Pitting Resistance) 14
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
210 to 300
Resilience: Unit (Modulus of Resilience), kJ/m3 1910
160 to 1580
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 33
22 to 37
Strength to Weight: Bending, points 27
21 to 29
Thermal Diffusivity, mm2/s 6.7
4.1
Thermal Shock Resistance, points 33
14 to 24

Alloy Composition

Carbon (C), % 0.2 to 0.4
0 to 0.030
Chromium (Cr), % 11.5 to 14
16 to 18
Iron (Fe), % 81.5 to 88.3
70.7 to 78
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
6.0 to 8.0
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030