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Grade 300 Maraging Steel vs. SAE-AISI H23 Steel

Both grade 300 maraging steel and SAE-AISI H23 steel are iron alloys. They have 67% 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 300 maraging steel and the bottom bar is SAE-AISI H23 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 75
80
Tensile Strength: Ultimate (UTS), MPa 1030 to 2030
760 to 1550

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Melting Completion (Liquidus), °C 1480
1680
Melting Onset (Solidus), °C 1430
1630
Specific Heat Capacity, J/kg-K 450
440
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 34
34
Density, g/cm3 8.2
8.7
Embodied Carbon, kg CO2/kg material 5.1
6.9
Embodied Energy, MJ/kg 68
110
Embodied Water, L/kg 150
120

Common Calculations

PREN (Pitting Resistance) 16
32
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 35 to 68
24 to 49
Strength to Weight: Bending, points 28 to 43
21 to 34
Thermal Shock Resistance, points 31 to 62
23 to 47

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
0.25 to 0.35
Chromium (Cr), % 0
11 to 12.8
Cobalt (Co), % 8.5 to 9.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 65 to 68.4
71.3 to 76.7
Manganese (Mn), % 0 to 0.1
0.15 to 0.4
Molybdenum (Mo), % 4.6 to 5.2
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
0.15 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.5 to 0.8
0
Tungsten (W), % 0
11 to 12.8
Vanadium (V), % 0
0.75 to 1.3
Zirconium (Zr), % 0 to 0.020
0

Comparable Variants