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ACI-ASTM CF3M Steel vs. S46500 Stainless Steel

Both ACI-ASTM CF3M steel and S46500 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF3M steel and the bottom bar is S46500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 55
2.3 to 14
Fatigue Strength, MPa 270
550 to 890
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 520
1260 to 1930
Tensile Strength: Yield (Proof), MPa 260
1120 to 1810

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 420
680
Maximum Temperature: Mechanical, °C 990
780
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 15
11

Otherwise Unclassified Properties

Base Metal Price, % relative 19
15
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.8
3.6
Embodied Energy, MJ/kg 53
51
Embodied Water, L/kg 160
120

Common Calculations

PREN (Pitting Resistance) 27
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
43 to 210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
44 to 68
Strength to Weight: Bending, points 18
33 to 44
Thermal Shock Resistance, points 12
44 to 67

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 17 to 21
11 to 12.5
Iron (Fe), % 59.9 to 72
72.6 to 76.1
Manganese (Mn), % 0 to 1.5
0 to 0.25
Molybdenum (Mo), % 2.0 to 3.0
0.75 to 1.3
Nickel (Ni), % 9.0 to 13
10.7 to 11.3
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.5
0 to 0.25
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
1.5 to 1.8