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AISI 310S Stainless Steel vs. ACI-ASTM CN3M Steel

Both AISI 310S stainless steel and ACI-ASTM CN3M steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is AISI 310S stainless steel and the bottom bar is ACI-ASTM CN3M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34 to 44
34
Fatigue Strength, MPa 250 to 280
150
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 600 to 710
500
Tensile Strength: Yield (Proof), MPa 270 to 350
190

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 450
430
Maximum Temperature: Mechanical, °C 1100
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 16
13
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 25
31
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 4.3
5.9
Embodied Energy, MJ/kg 61
80
Embodied Water, L/kg 190
200

Common Calculations

PREN (Pitting Resistance) 25
38
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 220
130
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 310
89
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 25
17
Strength to Weight: Bending, points 20 to 22
17
Thermal Diffusivity, mm2/s 4.1
3.4
Thermal Shock Resistance, points 14 to 16
11

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 24 to 26
20 to 22
Iron (Fe), % 48.3 to 57
42.4 to 52.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
4.5 to 5.5
Nickel (Ni), % 19 to 22
23 to 27
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030