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Grade 350 Maraging Steel vs. EN 1.4558 Stainless Steel

Both grade 350 maraging steel and EN 1.4558 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is grade 350 maraging steel and the bottom bar is EN 1.4558 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 4.1 to 18
39
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 710 to 1400
350
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
510
Tensile Strength: Yield (Proof), MPa 830 to 2300
200

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1470
1400
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 39
31
Density, g/cm3 8.2
8.0
Embodied Carbon, kg CO2/kg material 5.6
5.5
Embodied Energy, MJ/kg 74
77
Embodied Water, L/kg 160
200

Common Calculations

PREN (Pitting Resistance) 16
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 38 to 82
18
Strength to Weight: Bending, points 29 to 49
18
Thermal Shock Resistance, points 35 to 74
12

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
0.15 to 0.45
Boron (B), % 0 to 0.0030
0
Calcium (Ca), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 0
20 to 23
Cobalt (Co), % 11.5 to 12.5
0
Iron (Fe), % 61.2 to 64.6
39.2 to 47.9
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 18 to 19
32 to 35
Phosphorus (P), % 0 to 0.010
0 to 0.020
Silicon (Si), % 0 to 0.1
0 to 0.7
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 1.3 to 1.6
0 to 0.6
Zirconium (Zr), % 0 to 0.020
0