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Grade 200 Maraging Steel vs. SAE-AISI D7 Steel

Both grade 200 maraging steel and SAE-AISI D7 steel are iron alloys. They have 71% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade 200 maraging steel and the bottom bar is SAE-AISI D7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 74
73
Tensile Strength: Ultimate (UTS), MPa 970 to 1500
800 to 2120

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 31
10
Density, g/cm3 8.2
7.6
Embodied Carbon, kg CO2/kg material 4.5
11
Embodied Energy, MJ/kg 59
180
Embodied Water, L/kg 140
130

Common Calculations

PREN (Pitting Resistance) 11
16
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 33 to 51
29 to 78
Strength to Weight: Bending, points 27 to 35
25 to 48
Thermal Shock Resistance, points 29 to 45
27 to 72

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
2.2 to 2.5
Chromium (Cr), % 0
11.5 to 13.5
Cobalt (Co), % 8.0 to 9.0
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 67.8 to 71.8
76.6 to 81.9
Manganese (Mn), % 0 to 0.1
0 to 0.6
Molybdenum (Mo), % 3.0 to 3.5
0.7 to 1.2
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 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.15 to 0.25
0
Vanadium (V), % 0
3.8 to 4.4
Zirconium (Zr), % 0 to 0.020
0

Comparable Variants