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ACI-ASTM CF8 Steel vs. EN 1.4615 Stainless Steel

Both ACI-ASTM CF8 steel and EN 1.4615 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF8 steel and the bottom bar is EN 1.4615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 55
50
Fatigue Strength, MPa 260
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 540
500
Tensile Strength: Yield (Proof), MPa 260
200

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 420
400
Maximum Temperature: Mechanical, °C 980
840
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1430
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 15
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 16
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.1
2.8
Embodied Energy, MJ/kg 44
40
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 20
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
200
Resilience: Unit (Modulus of Resilience), kJ/m3 160
99
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
18
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 4.3
4.1
Thermal Shock Resistance, points 13
11

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 18 to 21
14 to 16
Copper (Cu), % 0
2.0 to 4.0
Iron (Fe), % 63.8 to 74
63.1 to 72.5
Manganese (Mn), % 0 to 1.5
7.0 to 9.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.8
Nickel (Ni), % 8.0 to 11
4.5 to 6.0
Nitrogen (N), % 0
0.020 to 0.060
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.010