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EN 1.6957 Steel vs. Grade 300 Maraging Steel

Both EN 1.6957 steel and grade 300 maraging steel are iron alloys. They have 71% of their average alloy composition in common. There are 24 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 1.6957 steel and the bottom bar is grade 300 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18
6.5 to 18
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 73
75
Shear Strength, MPa 570
640 to 1190
Tensile Strength: Ultimate (UTS), MPa 930
1030 to 2030
Tensile Strength: Yield (Proof), MPa 780
760 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
450
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
34
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 2.1
5.1
Embodied Energy, MJ/kg 29
68
Embodied Water, L/kg 60
150

Common Calculations

PREN (Pitting Resistance) 2.7
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
130 to 170
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 33
35 to 68
Strength to Weight: Bending, points 27
28 to 43
Thermal Shock Resistance, points 27
31 to 62

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), % 0.22 to 0.32
0 to 0.030
Chromium (Cr), % 1.2 to 1.8
0
Cobalt (Co), % 0
8.5 to 9.5
Iron (Fe), % 92.7 to 94.7
65 to 68.4
Manganese (Mn), % 0.15 to 0.4
0 to 0.1
Molybdenum (Mo), % 0.25 to 0.45
4.6 to 5.2
Nickel (Ni), % 3.4 to 4.0
18 to 19
Phosphorus (P), % 0 to 0.010
0 to 0.010
Silicon (Si), % 0 to 0.15
0 to 0.1
Sulfur (S), % 0 to 0.0070
0 to 0.010
Titanium (Ti), % 0
0.5 to 0.8
Vanadium (V), % 0.050 to 0.15
0
Zirconium (Zr), % 0
0 to 0.020