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Grade 300 Maraging Steel vs. EN 1.7720 Steel

Both grade 300 maraging steel and EN 1.7720 steel are iron alloys. They have 68% 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 300 maraging steel and the bottom bar is EN 1.7720 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 6.5 to 18
19
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 1030 to 2030
590
Tensile Strength: Yield (Proof), MPa 760 to 1990
340

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1480
1470
Melting Onset (Solidus), °C 1430
1430
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 34
2.8
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 5.1
2.2
Embodied Energy, MJ/kg 68
30
Embodied Water, L/kg 150
51

Common Calculations

PREN (Pitting Resistance) 16
2.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 170
97
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 35 to 68
21
Strength to Weight: Bending, points 28 to 43
20
Thermal Shock Resistance, points 31 to 62
17

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
0.1 to 0.15
Chromium (Cr), % 0
0.3 to 0.5
Cobalt (Co), % 8.5 to 9.5
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 65 to 68.4
96.6 to 98.6
Manganese (Mn), % 0 to 0.1
0.4 to 0.7
Molybdenum (Mo), % 4.6 to 5.2
0.4 to 0.6
Nickel (Ni), % 18 to 19
0 to 0.4
Phosphorus (P), % 0 to 0.010
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 0.45
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 0.5 to 0.8
0
Vanadium (V), % 0
0.22 to 0.3
Zirconium (Zr), % 0 to 0.020
0