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ACI-ASTM CA6NM Steel vs. S34565 Stainless Steel

Both ACI-ASTM CA6NM steel and S34565 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 S34565 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
200
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 17
39
Fatigue Strength, MPa 380
400
Poisson's Ratio 0.28
0.28
Reduction in Area, % 40
45
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 850
900
Tensile Strength: Yield (Proof), MPa 620
470

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 390
450
Maximum Temperature: Mechanical, °C 770
1100
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
12
Thermal Expansion, µm/m-K 10
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 10
28
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.5
5.3
Embodied Energy, MJ/kg 34
73
Embodied Water, L/kg 110
210

Common Calculations

PREN (Pitting Resistance) 15
47
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
300
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
32
Strength to Weight: Bending, points 26
26
Thermal Diffusivity, mm2/s 6.7
3.2
Thermal Shock Resistance, points 31
22

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.030
Chromium (Cr), % 11.5 to 14
23 to 25
Iron (Fe), % 78.4 to 84.6
43.2 to 51.6
Manganese (Mn), % 0 to 1.0
5.0 to 7.0
Molybdenum (Mo), % 0.4 to 1.0
4.0 to 5.0
Nickel (Ni), % 3.5 to 4.5
16 to 18
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0.4 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010