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AISI 310 Stainless Steel vs. ACI-ASTM CN7M Steel

Both AISI 310 stainless steel and ACI-ASTM CN7M steel are iron alloys. They have 86% of their average alloy composition in common. There are 32 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 AISI 310 stainless steel and the bottom bar is ACI-ASTM CN7M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 220
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34 to 45
44
Fatigue Strength, MPa 240 to 280
190
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 600 to 710
480
Tensile Strength: Yield (Proof), MPa 260 to 350
200

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 440
430
Maximum Temperature: Mechanical, °C 1040
1100
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1400
1450
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 15
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 25
32
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 4.3
5.6
Embodied Energy, MJ/kg 61
78
Embodied Water, L/kg 190
210

Common Calculations

PREN (Pitting Resistance) 25
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 220
170
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 310
110
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 3.9
5.6
Thermal Shock Resistance, points 14 to 17
12

Alloy Composition

Carbon (C), % 0 to 0.25
0 to 0.070
Chromium (Cr), % 24 to 26
19 to 22
Copper (Cu), % 0
3.0 to 4.0
Iron (Fe), % 48.2 to 57
37.4 to 48.5
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 19 to 22
27.5 to 30.5
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040