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EN 1.4818 Stainless Steel vs. Grade 350 Maraging Steel

Both EN 1.4818 stainless steel and grade 350 maraging steel are iron alloys. They have 73% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.4818 stainless steel and the bottom bar is grade 350 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
4.1 to 18
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 77
75
Shear Strength, MPa 480
710 to 1400
Tensile Strength: Ultimate (UTS), MPa 700
1140 to 2420
Tensile Strength: Yield (Proof), MPa 330
830 to 2300

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1410
1470
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 490
450
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 16
39
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 3.1
5.6
Embodied Energy, MJ/kg 44
74
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 22
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
98 to 190
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 25
38 to 82
Strength to Weight: Bending, points 23
29 to 49
Thermal Shock Resistance, points 15
35 to 74

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), % 0.040 to 0.080
0 to 0.030
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 18 to 20
0
Cobalt (Co), % 0
11.5 to 12.5
Iron (Fe), % 65.6 to 71.8
61.2 to 64.6
Manganese (Mn), % 0 to 1.0
0 to 0.1
Molybdenum (Mo), % 0
4.6 to 5.2
Nickel (Ni), % 9.0 to 11
18 to 19
Nitrogen (N), % 0.12 to 0.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.010
Silicon (Si), % 1.0 to 2.0
0 to 0.1
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
1.3 to 1.6
Zirconium (Zr), % 0
0 to 0.020