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ACI-ASTM CA40 Steel vs. S30600 Stainless Steel

Both ACI-ASTM CA40 steel and S30600 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA40 steel and the bottom bar is S30600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10
45
Fatigue Strength, MPa 460
250
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 910
610
Tensile Strength: Yield (Proof), MPa 860
270

Thermal Properties

Latent Heat of Fusion, J/g 280
350
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 750
950
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1500
1330
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 25
14
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
19
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 2.0
3.6
Embodied Energy, MJ/kg 28
51
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 14
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
220
Resilience: Unit (Modulus of Resilience), kJ/m3 1910
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 33
22
Strength to Weight: Bending, points 27
21
Thermal Diffusivity, mm2/s 6.7
3.7
Thermal Shock Resistance, points 33
14

Alloy Composition

Carbon (C), % 0.2 to 0.4
0 to 0.018
Chromium (Cr), % 11.5 to 14
17 to 18.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 81.5 to 88.3
58.9 to 65.3
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.2
Nickel (Ni), % 0 to 1.0
14 to 15.5
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.5
3.7 to 4.3
Sulfur (S), % 0 to 0.040
0 to 0.020