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Grade 300 Maraging Steel vs. EN 1.4729 Stainless Steel

Both grade 300 maraging steel and EN 1.4729 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 17 material properties with values for both materials. Properties with values for just one material (16, 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 1.4729 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 6.5 to 18
15
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 75
75

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1480
1420
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 450
490
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 34
7.5
Density, g/cm3 8.2
7.6
Embodied Carbon, kg CO2/kg material 5.1
2.1
Embodied Energy, MJ/kg 68
29
Embodied Water, L/kg 150
100

Common Calculations

PREN (Pitting Resistance) 16
14
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25

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
0.3 to 0.5
Chromium (Cr), % 0
12 to 14
Cobalt (Co), % 8.5 to 9.5
0
Iron (Fe), % 65 to 68.4
80.4 to 86.7
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 4.6 to 5.2
0 to 0.5
Nickel (Ni), % 18 to 19
0 to 1.0
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.1
1.0 to 2.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.5 to 0.8
0
Zirconium (Zr), % 0 to 0.020
0