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Grade 250 Maraging Steel vs. EN 1.7365 Steel

Both grade 250 maraging steel and EN 1.7365 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 250 maraging steel and the bottom bar is EN 1.7365 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 7.3 to 17
18
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 75
74
Tensile Strength: Ultimate (UTS), MPa 970 to 1800
700
Tensile Strength: Yield (Proof), MPa 660 to 1740
470

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Melting Completion (Liquidus), °C 1480
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 32
4.4
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 4.9
1.8
Embodied Energy, MJ/kg 65
24
Embodied Water, L/kg 140
70

Common Calculations

PREN (Pitting Resistance) 16
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 150
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 33 to 61
25
Strength to Weight: Bending, points 26 to 40
22
Thermal Shock Resistance, points 29 to 54
20

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
0.12 to 0.19
Chromium (Cr), % 0
4.0 to 6.0
Cobalt (Co), % 7.0 to 8.5
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 66.3 to 71.1
91.2 to 94.9
Manganese (Mn), % 0 to 0.1
0.5 to 0.8
Molybdenum (Mo), % 4.6 to 5.2
0.45 to 0.65
Nickel (Ni), % 17 to 19
0
Phosphorus (P), % 0 to 0.010
0 to 0.025
Silicon (Si), % 0 to 0.1
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.025
Titanium (Ti), % 0.3 to 0.5
0
Vanadium (V), % 0
0 to 0.050
Zirconium (Zr), % 0 to 0.020
0