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EN 1.4557 Stainless Steel vs. ACI-ASTM CF3 Steel

Both EN 1.4557 stainless steel and ACI-ASTM CF3 steel are iron alloys. They have 83% 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 1.4557 stainless steel and the bottom bar is ACI-ASTM CF3 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
60
Fatigue Strength, MPa 260
270
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 560
510
Tensile Strength: Yield (Proof), MPa 300
250

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 1090
960
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1450
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 29
16
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.6
3.2
Embodied Energy, MJ/kg 76
45
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 45
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
250
Resilience: Unit (Modulus of Resilience), kJ/m3 210
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
18
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 12
11

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 19.5 to 20.5
17 to 21
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 49.5 to 56.3
62.9 to 75
Manganese (Mn), % 0 to 1.2
0 to 1.5
Molybdenum (Mo), % 6.0 to 7.0
0 to 0.5
Nickel (Ni), % 17.5 to 19.5
8.0 to 12
Nitrogen (N), % 0.18 to 0.24
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.010
0 to 0.040