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S31727 Stainless Steel vs. ACI-ASTM CF10SMnN Steel

Both S31727 stainless steel and ACI-ASTM CF10SMnN steel are iron alloys. They have 84% of their average alloy composition in common. There are 28 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 S31727 stainless steel and the bottom bar is ACI-ASTM CF10SMnN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
34
Fatigue Strength, MPa 240
260
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 630
660
Tensile Strength: Yield (Proof), MPa 270
330

Thermal Properties

Latent Heat of Fusion, J/g 290
340
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 1010
900
Melting Completion (Liquidus), °C 1440
1360
Melting Onset (Solidus), °C 1390
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 24
15
Density, g/cm3 8.0
7.5
Embodied Carbon, kg CO2/kg material 4.7
3.1
Embodied Energy, MJ/kg 64
45
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 35
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
180
Resilience: Unit (Modulus of Resilience), kJ/m3 190
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 22
24
Strength to Weight: Bending, points 20
22
Thermal Shock Resistance, points 14
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 17.5 to 19
16 to 18
Copper (Cu), % 2.8 to 4.0
0
Iron (Fe), % 53.7 to 61.3
59.1 to 65.4
Manganese (Mn), % 0 to 1.0
7.0 to 9.0
Molybdenum (Mo), % 3.8 to 4.5
0
Nickel (Ni), % 14.5 to 16.5
8.0 to 9.0
Nitrogen (N), % 0.15 to 0.21
0.080 to 0.18
Phosphorus (P), % 0 to 0.030
0 to 0.060
Silicon (Si), % 0 to 1.0
3.5 to 4.5
Sulfur (S), % 0 to 0.030
0 to 0.030