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EN 1.4490 Stainless Steel vs. Grade 300 Maraging Steel

Both EN 1.4490 stainless steel and grade 300 maraging steel are iron alloys. They have 79% 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 EN 1.4490 stainless steel and the bottom bar is grade 300 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
6.5 to 18
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 560
1030 to 2030
Tensile Strength: Yield (Proof), MPa 260
760 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1440
1480
Melting Onset (Solidus), °C 1390
1430
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 19
34
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 3.7
5.1
Embodied Energy, MJ/kg 52
68
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 29
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
130 to 170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 20
35 to 68
Strength to Weight: Bending, points 19
28 to 43
Thermal Shock Resistance, points 16
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 to 0.030
0 to 0.030
Chromium (Cr), % 18 to 20
0
Cobalt (Co), % 0
8.5 to 9.5
Iron (Fe), % 61.7 to 70.9
65 to 68.4
Manganese (Mn), % 0 to 2.0
0 to 0.1
Molybdenum (Mo), % 2.0 to 2.5
4.6 to 5.2
Nickel (Ni), % 9.0 to 12
18 to 19
Nitrogen (N), % 0.12 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.010
Silicon (Si), % 0 to 1.5
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0.5 to 0.8
Zirconium (Zr), % 0
0 to 0.020