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Grade 350 Maraging Steel vs. AISI 409Cb Stainless Steel

Both grade 350 maraging steel and AISI 409Cb 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 AISI 409Cb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 4.1 to 18
24
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 75
75
Shear Strength, MPa 710 to 1400
270
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
420
Tensile Strength: Yield (Proof), MPa 830 to 2300
200

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
10

Otherwise Unclassified Properties

Base Metal Price, % relative 39
8.5
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 5.6
2.2
Embodied Energy, MJ/kg 74
31
Embodied Water, L/kg 160
94

Common Calculations

PREN (Pitting Resistance) 16
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
83
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 38 to 82
15
Strength to Weight: Bending, points 29 to 49
16
Thermal Shock Resistance, points 35 to 74
15

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
10.5 to 11.7
Cobalt (Co), % 11.5 to 12.5
0
Iron (Fe), % 61.2 to 64.6
84.9 to 89.5
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 18 to 19
0 to 0.5
Niobium (Nb), % 0
0 to 0.75
Phosphorus (P), % 0 to 0.010
0 to 0.045
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.040
Titanium (Ti), % 1.3 to 1.6
0
Zirconium (Zr), % 0 to 0.020
0