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ACI-ASTM CD4MCuN Steel vs. S30815 Stainless Steel

Both ACI-ASTM CD4MCuN steel and S30815 stainless 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 ACI-ASTM CD4MCuN steel and the bottom bar is S30815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 18
45
Fatigue Strength, MPa 340
320
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 770
680
Tensile Strength: Yield (Proof), MPa 550
350

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 450
430
Maximum Temperature: Mechanical, °C 1100
1020
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1380
1360
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 18
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.5
3.3
Embodied Energy, MJ/kg 49
47
Embodied Water, L/kg 180
160

Common Calculations

PREN (Pitting Resistance) 35
24
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
260
Resilience: Unit (Modulus of Resilience), kJ/m3 760
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
25
Strength to Weight: Bending, points 24
22
Thermal Diffusivity, mm2/s 4.5
4.0
Thermal Shock Resistance, points 21
15

Alloy Composition

Carbon (C), % 0 to 0.040
0.050 to 0.1
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 24.5 to 26.5
20 to 22
Copper (Cu), % 2.7 to 3.3
0
Iron (Fe), % 59.5 to 66.3
62.8 to 68.4
Manganese (Mn), % 0 to 1.0
0 to 0.8
Molybdenum (Mo), % 1.7 to 2.3
0
Nickel (Ni), % 4.7 to 6.0
10 to 12
Nitrogen (N), % 0.1 to 0.25
0.14 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
1.4 to 2.0
Sulfur (S), % 0 to 0.040
0 to 0.030