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N08020 Stainless Steel vs. ACI-ASTM CD4MCu Steel

Both N08020 stainless steel and ACI-ASTM CD4MCu steel are iron alloys. They have 69% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is N08020 stainless steel and the bottom bar is ACI-ASTM CD4MCu steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 15 to 34
18
Fatigue Strength, MPa 210 to 240
340
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 610 to 620
770
Tensile Strength: Yield (Proof), MPa 270 to 420
550

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 490
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1360
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 12
17
Thermal Expansion, µm/m-K 15
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 38
18
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 6.6
3.5
Embodied Energy, MJ/kg 92
49
Embodied Water, L/kg 220
180

Common Calculations

PREN (Pitting Resistance) 28
32
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 170
130
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 440
760
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
28
Strength to Weight: Bending, points 20
24
Thermal Diffusivity, mm2/s 3.2
4.5
Thermal Shock Resistance, points 15
21

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.040
Chromium (Cr), % 19 to 21
24.5 to 26.5
Copper (Cu), % 3.0 to 4.0
2.8 to 3.3
Iron (Fe), % 29.9 to 44
59.9 to 66.3
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
1.8 to 2.3
Nickel (Ni), % 32 to 38
4.8 to 6.0
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.040