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ACI-ASTM CA40 Steel vs. EN 1.4736 Stainless Steel

Both ACI-ASTM CA40 steel and EN 1.4736 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 CA40 steel and the bottom bar is EN 1.4736 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10
28
Fatigue Strength, MPa 460
230
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 910
580
Tensile Strength: Yield (Proof), MPa 860
310

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
500
Maximum Temperature: Mechanical, °C 750
1000
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1500
1380
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 25
21
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
3.4

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
2.4
Embodied Energy, MJ/kg 28
35
Embodied Water, L/kg 100
140

Common Calculations

PREN (Pitting Resistance) 14
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
140
Resilience: Unit (Modulus of Resilience), kJ/m3 1910
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 33
21
Strength to Weight: Bending, points 27
20
Thermal Diffusivity, mm2/s 6.7
5.6
Thermal Shock Resistance, points 33
21

Alloy Composition

Aluminum (Al), % 0
1.7 to 2.1
Carbon (C), % 0.2 to 0.4
0 to 0.040
Chromium (Cr), % 11.5 to 14
17 to 18
Iron (Fe), % 81.5 to 88.3
77 to 81.1
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 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
0.2 to 0.8