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ACI-ASTM CF10SMnN Steel vs. AISI 439 Stainless Steel

Both ACI-ASTM CF10SMnN steel and AISI 439 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 28 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 CF10SMnN steel and the bottom bar is AISI 439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 34
23
Fatigue Strength, MPa 260
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 660
490
Tensile Strength: Yield (Proof), MPa 330
250

Thermal Properties

Latent Heat of Fusion, J/g 340
280
Maximum Temperature: Corrosion, °C 410
530
Maximum Temperature: Mechanical, °C 900
890
Melting Completion (Liquidus), °C 1360
1510
Melting Onset (Solidus), °C 1310
1430
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 15
9.0
Density, g/cm3 7.5
7.7
Embodied Carbon, kg CO2/kg material 3.1
2.3
Embodied Energy, MJ/kg 45
34
Embodied Water, L/kg 150
120

Common Calculations

PREN (Pitting Resistance) 19
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
95
Resilience: Unit (Modulus of Resilience), kJ/m3 280
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 24
18
Strength to Weight: Bending, points 22
18
Thermal Shock Resistance, points 15
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 16 to 18
17 to 19
Iron (Fe), % 59.1 to 65.4
77.1 to 82.8
Manganese (Mn), % 7.0 to 9.0
0 to 1.0
Nickel (Ni), % 8.0 to 9.0
0 to 0.5
Nitrogen (N), % 0.080 to 0.18
0 to 0.030
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 3.5 to 4.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.1