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EN 1.3551 Steel vs. Grade 250 Maraging Steel

Both EN 1.3551 steel and grade 250 maraging steel are iron alloys. They have 73% of their average alloy composition in common. There are 20 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 EN 1.3551 steel and the bottom bar is grade 250 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 75
75
Tensile Strength: Ultimate (UTS), MPa 720
970 to 1800

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1490
1480
Melting Onset (Solidus), °C 1450
1430
Specific Heat Capacity, J/kg-K 460
450
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
32
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 4.9
4.9
Embodied Energy, MJ/kg 71
65
Embodied Water, L/kg 82
140

Common Calculations

PREN (Pitting Resistance) 18
16
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 26
33 to 61
Strength to Weight: Bending, points 23
26 to 40
Thermal Shock Resistance, points 21
29 to 54

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0.77 to 0.85
0 to 0.030
Chromium (Cr), % 3.9 to 4.3
0
Cobalt (Co), % 0
7.0 to 8.5
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 88.8 to 91.1
66.3 to 71.1
Manganese (Mn), % 0.15 to 0.35
0 to 0.1
Molybdenum (Mo), % 4.0 to 4.5
4.6 to 5.2
Nickel (Ni), % 0
17 to 19
Phosphorus (P), % 0 to 0.025
0 to 0.010
Silicon (Si), % 0 to 0.4
0 to 0.1
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
0.3 to 0.5
Tungsten (W), % 0 to 0.25
0
Vanadium (V), % 0.9 to 1.1
0
Zirconium (Zr), % 0
0 to 0.020