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Grade 350 Maraging Steel vs. EN 1.4658 Stainless Steel

Both grade 350 maraging steel and EN 1.4658 stainless steel are iron alloys. They have 71% 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 1.4658 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 4.1 to 18
28
Poisson's Ratio 0.3
0.27
Shear Modulus, GPa 75
81
Shear Strength, MPa 710 to 1400
580
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
900
Tensile Strength: Yield (Proof), MPa 830 to 2300
730

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 39
25
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 5.6
4.5
Embodied Energy, MJ/kg 74
61
Embodied Water, L/kg 160
200

Common Calculations

PREN (Pitting Resistance) 16
49
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
240
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 38 to 82
32
Strength to Weight: Bending, points 29 to 49
26
Thermal Shock Resistance, points 35 to 74
24

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 0.030
Chromium (Cr), % 0
26 to 29
Cobalt (Co), % 11.5 to 12.5
0.5 to 2.0
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 61.2 to 64.6
50.9 to 63.7
Manganese (Mn), % 0 to 0.1
0 to 1.5
Molybdenum (Mo), % 4.6 to 5.2
4.0 to 5.0
Nickel (Ni), % 18 to 19
5.5 to 9.5
Nitrogen (N), % 0
0.3 to 0.5
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0 to 0.1
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 1.3 to 1.6
0
Zirconium (Zr), % 0 to 0.020
0