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Grade 300 Maraging Steel vs. S39277 Stainless Steel

Both grade 300 maraging steel and S39277 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade 300 maraging steel and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 6.5 to 18
28
Poisson's Ratio 0.3
0.27
Shear Modulus, GPa 75
80
Shear Strength, MPa 640 to 1190
600
Tensile Strength: Ultimate (UTS), MPa 1030 to 2030
930
Tensile Strength: Yield (Proof), MPa 760 to 1990
660

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1480
1460
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 450
470
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 34
23
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 5.1
4.2
Embodied Energy, MJ/kg 68
59
Embodied Water, L/kg 150
180

Common Calculations

PREN (Pitting Resistance) 16
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 170
240
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 35 to 68
33
Strength to Weight: Bending, points 28 to 43
27
Thermal Shock Resistance, points 31 to 62
26

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 to 0.025
Chromium (Cr), % 0
24 to 26
Cobalt (Co), % 8.5 to 9.5
0
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 65 to 68.4
56.8 to 64.3
Manganese (Mn), % 0 to 0.1
0 to 0.8
Molybdenum (Mo), % 4.6 to 5.2
3.0 to 4.0
Nickel (Ni), % 18 to 19
6.5 to 8.0
Nitrogen (N), % 0
0.23 to 0.33
Phosphorus (P), % 0 to 0.010
0 to 0.025
Silicon (Si), % 0 to 0.1
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.0020
Titanium (Ti), % 0.5 to 0.8
0
Tungsten (W), % 0
0.8 to 1.2
Zirconium (Zr), % 0 to 0.020
0