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S46500 Stainless Steel vs. ACI-ASTM CF8C Steel

Both S46500 stainless steel and ACI-ASTM CF8C steel are iron alloys. They have a moderately high 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 S46500 stainless steel and the bottom bar is ACI-ASTM CF8C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 2.3 to 14
40
Fatigue Strength, MPa 550 to 890
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 1260 to 1930
530
Tensile Strength: Yield (Proof), MPa 1120 to 1810
260

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 680
490
Maximum Temperature: Mechanical, °C 780
980
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 15
19
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.6
3.7
Embodied Energy, MJ/kg 51
53
Embodied Water, L/kg 120
150

Common Calculations

PREN (Pitting Resistance) 15
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 43 to 210
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 44 to 68
19
Strength to Weight: Bending, points 33 to 44
19
Thermal Shock Resistance, points 44 to 67
11

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.080
Chromium (Cr), % 11 to 12.5
18 to 21
Iron (Fe), % 72.6 to 76.1
61.8 to 73
Manganese (Mn), % 0 to 0.25
0 to 1.5
Molybdenum (Mo), % 0.75 to 1.3
0 to 0.5
Nickel (Ni), % 10.7 to 11.3
9.0 to 12
Niobium (Nb), % 0
0 to 1.0
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.25
0 to 2.0
Sulfur (S), % 0 to 0.010
0 to 0.040
Titanium (Ti), % 1.5 to 1.8
0