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ACI-ASTM CF16Fa Steel vs. EN 1.4958 Stainless Steel

Both ACI-ASTM CF16Fa steel and EN 1.4958 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 31 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 CF16Fa steel and the bottom bar is EN 1.4958 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
40
Fatigue Strength, MPa 170
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 540
630
Tensile Strength: Yield (Proof), MPa 230
190

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 420
500
Maximum Temperature: Mechanical, °C 980
1090
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1370
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
12
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 17
30
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.3
5.3
Embodied Energy, MJ/kg 47
75
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 21
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
190
Resilience: Unit (Modulus of Resilience), kJ/m3 140
95
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
22
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 4.2
3.2
Thermal Shock Resistance, points 12
15

Alloy Composition

Aluminum (Al), % 0
0.2 to 0.5
Carbon (C), % 0 to 0.16
0.030 to 0.080
Chromium (Cr), % 18 to 21
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 62.1 to 72.4
41.1 to 50.6
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 0.4 to 0.8
0
Nickel (Ni), % 9.0 to 12
30 to 32.5
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 2.0
0 to 0.7
Sulfur (S), % 0.2 to 0.4
0 to 0.010
Titanium (Ti), % 0
0.2 to 0.5