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EN 1.4736 Stainless Steel vs. ACI-ASTM CA40F Steel

Both EN 1.4736 stainless steel and ACI-ASTM CA40F 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 EN 1.4736 stainless steel and the bottom bar is ACI-ASTM CA40F steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 28
13
Fatigue Strength, MPa 230
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 580
770
Tensile Strength: Yield (Proof), MPa 310
550

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 500
390
Maximum Temperature: Mechanical, °C 1000
750
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 21
27
Thermal Expansion, µm/m-K 10
10

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
7.5
Density, g/cm3 7.6
7.7
Embodied Carbon, kg CO2/kg material 2.4
2.0
Embodied Energy, MJ/kg 35
28
Embodied Water, L/kg 140
100

Common Calculations

PREN (Pitting Resistance) 18
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
94
Resilience: Unit (Modulus of Resilience), kJ/m3 250
790
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
28
Strength to Weight: Bending, points 20
24
Thermal Diffusivity, mm2/s 5.6
7.2
Thermal Shock Resistance, points 21
28

Alloy Composition

Aluminum (Al), % 1.7 to 2.1
0
Carbon (C), % 0 to 0.040
0.2 to 0.4
Chromium (Cr), % 17 to 18
11.5 to 14
Iron (Fe), % 77 to 81.1
81.6 to 88.3
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.015
0.2 to 0.4
Titanium (Ti), % 0.2 to 0.8
0