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Grade 250 Maraging Steel vs. ASTM Grade HG10 MNN Steel

Both grade 250 maraging steel and ASTM grade HG10 MNN steel are iron alloys. They have 75% of their average alloy composition in common. There are 23 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 250 maraging steel and the bottom bar is ASTM grade HG10 MNN 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
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 970 to 1800
590
Tensile Strength: Yield (Proof), MPa 660 to 1740
250

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1480
1420
Melting Onset (Solidus), °C 1430
1370
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 32
21
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 4.9
4.0
Embodied Energy, MJ/kg 65
58
Embodied Water, L/kg 140
160

Common Calculations

PREN (Pitting Resistance) 16
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 150
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 33 to 61
21
Strength to Weight: Bending, points 26 to 40
20
Thermal Shock Resistance, points 29 to 54
13

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
0.070 to 0.11
Chromium (Cr), % 0
18.5 to 20.5
Cobalt (Co), % 7.0 to 8.5
0
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 66.3 to 71.1
57.9 to 66.5
Manganese (Mn), % 0 to 0.1
3.0 to 5.0
Molybdenum (Mo), % 4.6 to 5.2
0.25 to 0.45
Nickel (Ni), % 17 to 19
11.5 to 13.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 0.7
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