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Grade 350 Maraging Steel vs. R30556 Alloy

Both grade 350 maraging steel and R30556 alloy are iron alloys. They have 63% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is grade 350 maraging steel and the bottom bar is R30556 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 4.1 to 18
45
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 75
81
Shear Strength, MPa 710 to 1400
550
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
780
Tensile Strength: Yield (Proof), MPa 830 to 2300
350

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1470
1420
Melting Onset (Solidus), °C 1420
1330
Specific Heat Capacity, J/kg-K 450
450
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 39
70
Density, g/cm3 8.2
8.4
Embodied Carbon, kg CO2/kg material 5.6
8.7
Embodied Energy, MJ/kg 74
130
Embodied Water, L/kg 160
300

Common Calculations

PREN (Pitting Resistance) 16
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
290
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 38 to 82
26
Strength to Weight: Bending, points 29 to 49
22
Thermal Shock Resistance, points 35 to 74
18

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
0.1 to 0.5
Boron (B), % 0 to 0.0030
0 to 0.020
Calcium (Ca), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0.050 to 0.15
Chromium (Cr), % 0
21 to 23
Cobalt (Co), % 11.5 to 12.5
16 to 21
Iron (Fe), % 61.2 to 64.6
20.4 to 38.2
Lanthanum (La), % 0
0.0050 to 0.1
Manganese (Mn), % 0 to 0.1
0.5 to 2.0
Molybdenum (Mo), % 4.6 to 5.2
2.5 to 4.0
Nickel (Ni), % 18 to 19
19 to 22.5
Niobium (Nb), % 0
0 to 0.3
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.1
0.2 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.015
Tantalum (Ta), % 0
0.3 to 1.3
Titanium (Ti), % 1.3 to 1.6
0
Tungsten (W), % 0
2.0 to 3.5
Zinc (Zn), % 0
0.0010 to 0.1
Zirconium (Zr), % 0 to 0.020
0