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ACI-ASTM CD4MCu Steel vs. AISI 316 Stainless Steel

Both ACI-ASTM CD4MCu steel and AISI 316 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD4MCu steel and the bottom bar is AISI 316 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
8.0 to 55
Fatigue Strength, MPa 340
210 to 430
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 770
520 to 1180
Tensile Strength: Yield (Proof), MPa 550
230 to 850

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1100
590
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 13
16

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 18
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.5
3.9
Embodied Energy, MJ/kg 49
53
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 32
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
85 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 760
130 to 1820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
18 to 41
Strength to Weight: Bending, points 24
18 to 31
Thermal Diffusivity, mm2/s 4.5
4.1
Thermal Shock Resistance, points 21
11 to 26

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.080
Chromium (Cr), % 24.5 to 26.5
16 to 18
Copper (Cu), % 2.8 to 3.3
0
Iron (Fe), % 59.9 to 66.3
62 to 72
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 1.8 to 2.3
2.0 to 3.0
Nickel (Ni), % 4.8 to 6.0
10 to 14
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.040
0 to 0.030