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Grade 250 Maraging Steel vs. S31260 Stainless Steel

Both grade 250 maraging steel and S31260 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is grade 250 maraging steel and the bottom bar is S31260 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 7.3 to 17
23
Poisson's Ratio 0.3
0.27
Shear Modulus, GPa 75
80
Shear Strength, MPa 600 to 1060
500
Tensile Strength: Ultimate (UTS), MPa 970 to 1800
790
Tensile Strength: Yield (Proof), MPa 660 to 1740
540

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1480
1450
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 32
20
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 4.9
3.9
Embodied Energy, MJ/kg 65
53
Embodied Water, L/kg 140
180

Common Calculations

PREN (Pitting Resistance) 16
39
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 150
160
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 33 to 61
28
Strength to Weight: Bending, points 26 to 40
24
Thermal Shock Resistance, points 29 to 54
22

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 0.030
Chromium (Cr), % 0
24 to 26
Cobalt (Co), % 7.0 to 8.5
0
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 66.3 to 71.1
59.6 to 67.6
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 4.6 to 5.2
2.5 to 3.5
Nickel (Ni), % 17 to 19
5.5 to 7.5
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.010
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 0.75
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.3 to 0.5
0
Tungsten (W), % 0
0.1 to 0.5
Zirconium (Zr), % 0 to 0.020
0