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Grade 350 Maraging Steel vs. EN 1.4931 Steel

Both grade 350 maraging steel and EN 1.4931 steel are iron alloys. They have 65% 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 EN 1.4931 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 4.1 to 18
17
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
810
Tensile Strength: Yield (Proof), MPa 830 to 2300
620

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 39
8.5
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 5.6
2.9
Embodied Energy, MJ/kg 74
42
Embodied Water, L/kg 160
100

Common Calculations

PREN (Pitting Resistance) 16
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 38 to 82
29
Strength to Weight: Bending, points 29 to 49
25
Thermal Shock Resistance, points 35 to 74
22

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
0.2 to 0.26
Chromium (Cr), % 0
11.3 to 12.2
Cobalt (Co), % 11.5 to 12.5
0
Iron (Fe), % 61.2 to 64.6
83.2 to 86.8
Manganese (Mn), % 0 to 0.1
0.5 to 0.8
Molybdenum (Mo), % 4.6 to 5.2
1.0 to 1.2
Nickel (Ni), % 18 to 19
0 to 1.0
Phosphorus (P), % 0 to 0.010
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 1.3 to 1.6
0
Tungsten (W), % 0
0 to 0.5
Vanadium (V), % 0
0.25 to 0.35
Zirconium (Zr), % 0 to 0.020
0