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ACI-ASTM CD3MCuN Steel vs. AISI 317 Stainless Steel

Both ACI-ASTM CD3MCuN steel and AISI 317 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 31 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 CD3MCuN steel and the bottom bar is AISI 317 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 29
35 to 55
Fatigue Strength, MPa 370
250 to 330
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
79
Tensile Strength: Ultimate (UTS), MPa 790
580 to 710
Tensile Strength: Yield (Proof), MPa 500
250 to 420

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
590
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 20
21
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.9
4.3
Embodied Energy, MJ/kg 54
59
Embodied Water, L/kg 180
160

Common Calculations

PREN (Pitting Resistance) 41
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
210 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 620
150 to 430
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
20 to 25
Strength to Weight: Bending, points 24
20 to 22
Thermal Diffusivity, mm2/s 4.1
4.1
Thermal Shock Resistance, points 22
12 to 15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 24 to 26.7
18 to 20
Copper (Cu), % 1.4 to 1.9
0
Iron (Fe), % 58.2 to 65.9
58 to 68
Manganese (Mn), % 0 to 1.2
0 to 2.0
Molybdenum (Mo), % 2.9 to 3.8
3.0 to 4.0
Nickel (Ni), % 5.6 to 6.7
11 to 15
Nitrogen (N), % 0.22 to 0.33
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 1.1
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030