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S44660 Stainless Steel vs. ACI-ASTM CA6NM Steel

Both S44660 stainless steel and ACI-ASTM CA6NM steel are iron alloys. They have 82% 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 S44660 stainless steel and the bottom bar is ACI-ASTM CA6NM steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
250
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 20
17
Fatigue Strength, MPa 330
380
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
76
Tensile Strength: Ultimate (UTS), MPa 660
850
Tensile Strength: Yield (Proof), MPa 510
620

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 640
390
Maximum Temperature: Mechanical, °C 1100
770
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
25
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 21
10
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 4.3
2.5
Embodied Energy, MJ/kg 61
34
Embodied Water, L/kg 180
110

Common Calculations

PREN (Pitting Resistance) 38
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
130
Resilience: Unit (Modulus of Resilience), kJ/m3 640
1000
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
30
Strength to Weight: Bending, points 22
26
Thermal Diffusivity, mm2/s 4.5
6.7
Thermal Shock Resistance, points 21
31

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 25 to 28
11.5 to 14
Iron (Fe), % 60.4 to 71
78.4 to 84.6
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 3.0 to 4.0
0.4 to 1.0
Nickel (Ni), % 1.0 to 3.5
3.5 to 4.5
Niobium (Nb), % 0.2 to 1.0
0
Nitrogen (N), % 0 to 0.040
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0.2 to 1.0
0