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Grade 200 Maraging Steel vs. ASTM B780 Alloy

Grade 200 maraging steel belongs to the iron alloys classification, while ASTM B780 alloy belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is grade 200 maraging steel and the bottom bar is ASTM B780 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
83
Elongation at Break, % 9.1 to 18
1.1 to 9.1
Poisson's Ratio 0.3
0.36
Shear Modulus, GPa 74
30
Shear Strength, MPa 600 to 890
200 to 340
Tensile Strength: Ultimate (UTS), MPa 970 to 1500
330 to 590

Thermal Properties

Latent Heat of Fusion, J/g 260
140
Specific Heat Capacity, J/kg-K 460
270
Thermal Expansion, µm/m-K 12
18

Otherwise Unclassified Properties

Density, g/cm3 8.2
10

Common Calculations

Stiffness to Weight: Axial, points 13
4.5
Stiffness to Weight: Bending, points 23
14
Strength to Weight: Axial, points 33 to 51
9.1 to 16
Strength to Weight: Bending, points 27 to 35
11 to 15
Thermal Shock Resistance, points 29 to 45
16 to 29

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
0
Boron (B), % 0 to 0.0030
0
Cadmium (Cd), % 0
0 to 0.050
Calcium (Ca), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0
Cobalt (Co), % 8.0 to 9.0
0
Copper (Cu), % 0
23.5 to 25.7
Iron (Fe), % 67.8 to 71.8
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0 to 0.1
0
Molybdenum (Mo), % 3.0 to 3.5
0
Nickel (Ni), % 17 to 19
0.35 to 0.65
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
74 to 76
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0.15 to 0.25
0
Zinc (Zn), % 0
0 to 0.060
Zirconium (Zr), % 0 to 0.020
0

Comparable Variants