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ACI-ASTM CF8C Steel vs. AISI 301 Stainless Steel

Both ACI-ASTM CF8C steel and AISI 301 stainless steel are iron alloys. They have a moderately high 93% 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 CF8C steel and the bottom bar is AISI 301 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
190 to 440
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
7.4 to 46
Fatigue Strength, MPa 220
210 to 600
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 530
590 to 1460
Tensile Strength: Yield (Proof), MPa 260
230 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 490
410
Maximum Temperature: Mechanical, °C 980
840
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 19
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.7
2.7
Embodied Energy, MJ/kg 53
39
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 20
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
99 to 300
Resilience: Unit (Modulus of Resilience), kJ/m3 170
130 to 2970
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
21 to 52
Strength to Weight: Bending, points 19
20 to 37
Thermal Diffusivity, mm2/s 4.3
4.2
Thermal Shock Resistance, points 11
12 to 31

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 18 to 21
16 to 18
Iron (Fe), % 61.8 to 73
70.7 to 78
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 9.0 to 12
6.0 to 8.0
Niobium (Nb), % 0 to 1.0
0
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030