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S44627 Stainless Steel vs. ACI-ASTM CF8C Steel

Both S44627 stainless steel and ACI-ASTM CF8C steel are iron alloys. They have 88% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S44627 stainless steel and the bottom bar is ACI-ASTM CF8C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 24
40
Fatigue Strength, MPa 200
220
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 490
530
Tensile Strength: Yield (Proof), MPa 300
260

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 470
490
Maximum Temperature: Mechanical, °C 1100
980
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 14
19
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.9
3.7
Embodied Energy, MJ/kg 41
53
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 30
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
180
Resilience: Unit (Modulus of Resilience), kJ/m3 220
170
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
19
Strength to Weight: Bending, points 18
19
Thermal Diffusivity, mm2/s 4.6
4.3
Thermal Shock Resistance, points 16
11

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.080
Chromium (Cr), % 25 to 27.5
18 to 21
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 69.2 to 74.2
61.8 to 73
Manganese (Mn), % 0 to 0.4
0 to 1.5
Molybdenum (Mo), % 0.75 to 1.5
0 to 0.5
Nickel (Ni), % 0 to 0.5
9.0 to 12
Niobium (Nb), % 0.050 to 0.2
0 to 1.0
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 2.0
Sulfur (S), % 0 to 0.020
0 to 0.040