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S44537 Stainless Steel vs. ACI-ASTM CF8M Steel

Both S44537 stainless steel and ACI-ASTM CF8M steel are iron alloys. They have 86% 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 S44537 stainless steel and the bottom bar is ACI-ASTM CF8M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 21
50
Fatigue Strength, MPa 230
280
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 510
540
Tensile Strength: Yield (Proof), MPa 360
290

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 530
420
Maximum Temperature: Mechanical, °C 1000
1000
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 21
16
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 19
19
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.4
3.8
Embodied Energy, MJ/kg 50
53
Embodied Water, L/kg 140
160

Common Calculations

PREN (Pitting Resistance) 26
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
230
Resilience: Unit (Modulus of Resilience), kJ/m3 320
210
Stiffness to Weight: Axial, points 14
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 5.6
4.3
Thermal Shock Resistance, points 17
12

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 20 to 24
18 to 21
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 69 to 78.6
60.3 to 71
Lanthanum (La), % 0.040 to 0.2
0
Manganese (Mn), % 0 to 0.8
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 0.5
9.0 to 12
Niobium (Nb), % 0.2 to 1.0
0
Nitrogen (N), % 0 to 0.040
0
Phosphorus (P), % 0 to 0.050
0 to 0.040
Silicon (Si), % 0.1 to 0.6
0 to 2.0
Sulfur (S), % 0 to 0.0060
0 to 0.040
Titanium (Ti), % 0.020 to 0.2
0
Tungsten (W), % 1.0 to 3.0
0