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ACI-ASTM CD3MCuN Steel vs. AISI 334 Stainless Steel

Both ACI-ASTM CD3MCuN steel and AISI 334 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 334 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 29
34
Fatigue Strength, MPa 370
150
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 790
540
Tensile Strength: Yield (Proof), MPa 500
190

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
490
Maximum Temperature: Mechanical, °C 1100
1000
Melting Completion (Liquidus), °C 1440
1410
Melting Onset (Solidus), °C 1390
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 20
22
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.9
4.1
Embodied Energy, MJ/kg 54
59
Embodied Water, L/kg 180
170

Common Calculations

PREN (Pitting Resistance) 41
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
140
Resilience: Unit (Modulus of Resilience), kJ/m3 620
96
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
19
Strength to Weight: Bending, points 24
19
Thermal Shock Resistance, points 22
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
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
55.7 to 62.7
Manganese (Mn), % 0 to 1.2
0 to 1.0
Molybdenum (Mo), % 2.9 to 3.8
0
Nickel (Ni), % 5.6 to 6.7
19 to 21
Nitrogen (N), % 0.22 to 0.33
0
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 1.1
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6