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ACI-ASTM CA40F Steel vs. EN 1.4742 Stainless Steel

Both ACI-ASTM CA40F steel and EN 1.4742 stainless steel are iron alloys. They have a moderately high 93% 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 CA40F steel and the bottom bar is EN 1.4742 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 13
17
Fatigue Strength, MPa 320
180
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 770
600
Tensile Strength: Yield (Proof), MPa 550
300

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 750
1000
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 27
19
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
9.0
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 2.0
2.2
Embodied Energy, MJ/kg 28
32
Embodied Water, L/kg 100
130

Common Calculations

PREN (Pitting Resistance) 14
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
84
Resilience: Unit (Modulus of Resilience), kJ/m3 790
230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
22
Strength to Weight: Bending, points 24
21
Thermal Diffusivity, mm2/s 7.2
5.1
Thermal Shock Resistance, points 28
21

Alloy Composition

Aluminum (Al), % 0
0.7 to 1.2
Carbon (C), % 0.2 to 0.4
0 to 0.12
Chromium (Cr), % 11.5 to 14
17 to 19
Iron (Fe), % 81.6 to 88.3
77.2 to 81.6
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0.7 to 1.4
Sulfur (S), % 0.2 to 0.4
0 to 0.015