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Grade 250 Maraging Steel vs. S32304 Stainless Steel

Both grade 250 maraging steel and S32304 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is grade 250 maraging steel and the bottom bar is S32304 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 7.3 to 17
28
Poisson's Ratio 0.3
0.27
Rockwell C Hardness 30 to 53
28
Shear Modulus, GPa 75
79
Shear Strength, MPa 600 to 1060
440
Tensile Strength: Ultimate (UTS), MPa 970 to 1800
670
Tensile Strength: Yield (Proof), MPa 660 to 1740
460

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1480
1420
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 32
14
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 4.9
2.8
Embodied Energy, MJ/kg 65
40
Embodied Water, L/kg 140
160

Common Calculations

PREN (Pitting Resistance) 16
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 150
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 33 to 61
24
Strength to Weight: Bending, points 26 to 40
22
Thermal Shock Resistance, points 29 to 54
18

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
21.5 to 24.5
Cobalt (Co), % 7.0 to 8.5
0
Copper (Cu), % 0
0.050 to 0.6
Iron (Fe), % 66.3 to 71.1
65 to 75.4
Manganese (Mn), % 0 to 0.1
0 to 2.5
Molybdenum (Mo), % 4.6 to 5.2
0.050 to 0.6
Nickel (Ni), % 17 to 19
3.0 to 5.5
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.3 to 0.5
0
Zirconium (Zr), % 0 to 0.020
0