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EN 1.4411 Stainless Steel vs. ACI-ASTM CA15M Steel

Both EN 1.4411 stainless steel and ACI-ASTM CA15M steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4411 stainless steel and the bottom bar is ACI-ASTM CA15M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
20
Fatigue Strength, MPa 370
330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Tensile Strength: Ultimate (UTS), MPa 870
690
Tensile Strength: Yield (Proof), MPa 600
510

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 880
760
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 17
27
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
7.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.0
2.1
Embodied Energy, MJ/kg 41
29
Embodied Water, L/kg 130
100

Common Calculations

PREN (Pitting Resistance) 22
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
130
Resilience: Unit (Modulus of Resilience), kJ/m3 920
670
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31
25
Strength to Weight: Bending, points 26
22
Thermal Diffusivity, mm2/s 4.6
7.2
Thermal Shock Resistance, points 28
25

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.15
Chromium (Cr), % 15 to 17
11.5 to 14
Iron (Fe), % 73.1 to 79.5
82.1 to 88.4
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 1.5 to 2.0
0.15 to 1.0
Nickel (Ni), % 4.0 to 6.0
0 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 0.65
Sulfur (S), % 0 to 0.025
0 to 0.040