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AISI 317L Stainless Steel vs. ACI-ASTM CD4MCuN Steel

Both AISI 317L stainless steel and ACI-ASTM CD4MCuN steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 317L stainless steel and the bottom bar is ACI-ASTM CD4MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 44
18
Fatigue Strength, MPa 220
340
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 82
79
Tensile Strength: Ultimate (UTS), MPa 550
770
Tensile Strength: Yield (Proof), MPa 250
550

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
450
Maximum Temperature: Mechanical, °C 1010
1100
Melting Completion (Liquidus), °C 1400
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
17
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 21
18
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.3
3.5
Embodied Energy, MJ/kg 59
49
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 31
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
130
Resilience: Unit (Modulus of Resilience), kJ/m3 150
760
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
28
Strength to Weight: Bending, points 19
24
Thermal Diffusivity, mm2/s 3.8
4.5
Thermal Shock Resistance, points 12
21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.040
Chromium (Cr), % 18 to 20
24.5 to 26.5
Copper (Cu), % 0
2.7 to 3.3
Iron (Fe), % 58 to 68
59.5 to 66.3
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 3.0 to 4.0
1.7 to 2.3
Nickel (Ni), % 11 to 15
4.7 to 6.0
Nitrogen (N), % 0 to 0.1
0.1 to 0.25
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.040