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ACI-ASTM CA6NM Steel vs. N08700 Stainless Steel

Both ACI-ASTM CA6NM steel and N08700 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA6NM steel and the bottom bar is N08700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
32
Fatigue Strength, MPa 380
210
Poisson's Ratio 0.28
0.28
Reduction in Area, % 40
45
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 850
620
Tensile Strength: Yield (Proof), MPa 620
270

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
460
Maximum Temperature: Mechanical, °C 770
1100
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
13
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 10
32
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.5
6.0
Embodied Energy, MJ/kg 34
82
Embodied Water, L/kg 110
200

Common Calculations

PREN (Pitting Resistance) 15
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
160
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
180
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
21
Strength to Weight: Bending, points 26
20
Thermal Diffusivity, mm2/s 6.7
3.5
Thermal Shock Resistance, points 31
14

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.040
Chromium (Cr), % 11.5 to 14
19 to 23
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 78.4 to 84.6
42 to 52.7
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.4 to 1.0
4.3 to 5.0
Nickel (Ni), % 3.5 to 4.5
24 to 26
Niobium (Nb), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030