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ACI-ASTM CA6NM Steel vs. N08031 Stainless Steel

Both ACI-ASTM CA6NM steel and N08031 stainless steel are iron alloys. They have 51% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA6NM steel and the bottom bar is N08031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 17
45
Fatigue Strength, MPa 380
290
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
81
Tensile Strength: Ultimate (UTS), MPa 850
730
Tensile Strength: Yield (Proof), MPa 620
310

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 390
460
Maximum Temperature: Mechanical, °C 770
1100
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 25
12
Thermal Expansion, µm/m-K 10
18

Otherwise Unclassified Properties

Base Metal Price, % relative 10
39
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.5
7.1
Embodied Energy, MJ/kg 34
96
Embodied Water, L/kg 110
240

Common Calculations

PREN (Pitting Resistance) 15
52
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
270
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
25
Strength to Weight: Bending, points 26
22
Thermal Diffusivity, mm2/s 6.7
3.1
Thermal Shock Resistance, points 31
14

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.015
Chromium (Cr), % 11.5 to 14
26 to 28
Copper (Cu), % 0
1.0 to 1.4
Iron (Fe), % 78.4 to 84.6
29 to 36.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.4 to 1.0
6.0 to 7.0
Nickel (Ni), % 3.5 to 4.5
30 to 32
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.010