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ACI-ASTM CA6NM Steel vs. AISI 301 Stainless Steel

Both ACI-ASTM CA6NM steel and AISI 301 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 32 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 ACI-ASTM CA6NM steel and the bottom bar is AISI 301 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
190 to 440
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
7.4 to 46
Fatigue Strength, MPa 380
210 to 600
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 850
590 to 1460
Tensile Strength: Yield (Proof), MPa 620
230 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 770
840
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
16
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.5
2.7
Embodied Energy, MJ/kg 34
39
Embodied Water, L/kg 110
130

Common Calculations

PREN (Pitting Resistance) 15
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
99 to 300
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
130 to 2970
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
21 to 52
Strength to Weight: Bending, points 26
20 to 37
Thermal Diffusivity, mm2/s 6.7
4.2
Thermal Shock Resistance, points 31
12 to 31

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.15
Chromium (Cr), % 11.5 to 14
16 to 18
Iron (Fe), % 78.4 to 84.6
70.7 to 78
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.4 to 1.0
0
Nickel (Ni), % 3.5 to 4.5
6.0 to 8.0
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030