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Grade 350 Maraging Steel vs. SAE-AISI T8 Steel

Both grade 350 maraging steel and SAE-AISI T8 steel are iron alloys. They have 69% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 350 maraging steel and the bottom bar is SAE-AISI T8 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 75
78
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
780 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1470
1730
Melting Onset (Solidus), °C 1420
1670
Specific Heat Capacity, J/kg-K 450
420
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 39
45
Density, g/cm3 8.2
9.0
Embodied Carbon, kg CO2/kg material 5.6
10
Embodied Energy, MJ/kg 74
160
Embodied Water, L/kg 160
120

Common Calculations

PREN (Pitting Resistance) 16
30
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 38 to 82
24 to 66
Strength to Weight: Bending, points 29 to 49
21 to 41
Thermal Shock Resistance, points 35 to 74
24 to 66

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
0.75 to 0.85
Chromium (Cr), % 0
3.8 to 4.5
Cobalt (Co), % 11.5 to 12.5
4.3 to 5.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 61.2 to 64.6
69.3 to 75.4
Manganese (Mn), % 0 to 0.1
0.2 to 0.4
Molybdenum (Mo), % 4.6 to 5.2
0.4 to 1.0
Nickel (Ni), % 18 to 19
0 to 0.3
Phosphorus (P), % 0 to 0.010
0 to 0.030
Silicon (Si), % 0 to 0.1
0.2 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 1.3 to 1.6
0
Tungsten (W), % 0
13.3 to 14.8
Vanadium (V), % 0
1.8 to 2.4
Zirconium (Zr), % 0 to 0.020
0

Comparable Variants