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ACI-ASTM CF8 Steel vs. EN 1.4361 Stainless Steel

Both ACI-ASTM CF8 steel and EN 1.4361 stainless steel are iron alloys. They have a moderately high 91% 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 1.4361 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 55
43
Fatigue Strength, MPa 260
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 540
630
Tensile Strength: Yield (Proof), MPa 260
250

Thermal Properties

Latent Heat of Fusion, J/g 300
350
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 980
940
Melting Completion (Liquidus), °C 1420
1370
Melting Onset (Solidus), °C 1430
1330
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 16
14
Thermal Expansion, µm/m-K 15
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 16
19
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 3.1
3.6
Embodied Energy, MJ/kg 44
52
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 20
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
220
Resilience: Unit (Modulus of Resilience), kJ/m3 160
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
23
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 4.3
3.7
Thermal Shock Resistance, points 13
15

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.015
Chromium (Cr), % 18 to 21
16.5 to 18.5
Iron (Fe), % 63.8 to 74
58.7 to 65.8
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0 to 0.2
Nickel (Ni), % 8.0 to 11
14 to 16
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 2.0
3.7 to 4.5
Sulfur (S), % 0 to 0.040
0 to 0.010