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Grade 300 Maraging Steel vs. EN 1.4421 Stainless Steel

Both grade 300 maraging steel and EN 1.4421 stainless steel are iron alloys. They have 72% 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 1.4421 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 6.5 to 18
11 to 17
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 1030 to 2030
880 to 1100
Tensile Strength: Yield (Proof), MPa 760 to 1990
620 to 950

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 34
12
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 5.1
2.6
Embodied Energy, MJ/kg 68
36
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 16
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 170
120 to 140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 35 to 68
31 to 39
Strength to Weight: Bending, points 28 to 43
26 to 30
Thermal Shock Resistance, points 31 to 62
31 to 39

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 to 0.060
Chromium (Cr), % 0
15.5 to 17.5
Cobalt (Co), % 8.5 to 9.5
0
Iron (Fe), % 65 to 68.4
74.4 to 80.5
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 4.6 to 5.2
0 to 0.7
Nickel (Ni), % 18 to 19
4.0 to 5.5
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0 to 0.1
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 0.5 to 0.8
0
Zirconium (Zr), % 0 to 0.020
0

Comparable Variants