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Grade 250 Maraging Steel vs. SAE-AISI H25 Steel

Both grade 250 maraging steel and SAE-AISI H25 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 250 maraging steel and the bottom bar is SAE-AISI H25 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
79
Tensile Strength: Ultimate (UTS), MPa 970 to 1800
710 to 1620

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1480
1750
Melting Onset (Solidus), °C 1430
1700
Specific Heat Capacity, J/kg-K 450
420
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 32
38
Density, g/cm3 8.2
9.1
Embodied Carbon, kg CO2/kg material 4.9
6.2
Embodied Energy, MJ/kg 65
93
Embodied Water, L/kg 140
83

Common Calculations

PREN (Pitting Resistance) 16
29
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 23
22
Strength to Weight: Axial, points 33 to 61
22 to 50
Strength to Weight: Bending, points 26 to 40
20 to 34
Thermal Shock Resistance, points 29 to 54
22 to 49

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
0.22 to 0.32
Chromium (Cr), % 0
3.8 to 4.5
Cobalt (Co), % 7.0 to 8.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 66.3 to 71.1
77.2 to 81.3
Manganese (Mn), % 0 to 0.1
0.15 to 0.4
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 17 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 0.4
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.3 to 0.5
0
Tungsten (W), % 0
14 to 16
Vanadium (V), % 0
0.4 to 0.6
Zirconium (Zr), % 0 to 0.020
0

Comparable Variants