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Grade 350 Maraging Steel vs. ACI-ASTM CN3MN Steel

Both grade 350 maraging steel and ACI-ASTM CN3MN steel are iron alloys. They have 69% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade 350 maraging steel and the bottom bar is ACI-ASTM CN3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 4.1 to 18
39
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
620
Tensile Strength: Yield (Proof), MPa 830 to 2300
300

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 450
460
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 39
33
Density, g/cm3 8.2
8.1
Embodied Carbon, kg CO2/kg material 5.6
6.2
Embodied Energy, MJ/kg 74
84
Embodied Water, L/kg 160
200

Common Calculations

PREN (Pitting Resistance) 16
46
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
200
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 38 to 82
21
Strength to Weight: Bending, points 29 to 49
20
Thermal Shock Resistance, points 35 to 74
14

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
0
Boron (B), % 0 to 0.0030
0
Calcium (Ca), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 0
20 to 22
Cobalt (Co), % 11.5 to 12.5
0
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 61.2 to 64.6
41.4 to 50.3
Manganese (Mn), % 0 to 0.1
0 to 2.0
Molybdenum (Mo), % 4.6 to 5.2
6.0 to 7.0
Nickel (Ni), % 18 to 19
23.5 to 25.5
Nitrogen (N), % 0
0.18 to 0.26
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 1.3 to 1.6
0
Zirconium (Zr), % 0 to 0.020
0