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Grade 250 Maraging Steel vs. AWS E309

Both grade 250 maraging steel and AWS E309 are iron alloys. They have 74% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade 250 maraging steel and the bottom bar is AWS E309.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 7.3 to 17
34
Poisson's Ratio 0.3
0.27
Shear Modulus, GPa 75
78
Tensile Strength: Ultimate (UTS), MPa 970 to 1800
620

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1480
1410
Melting Onset (Solidus), °C 1430
1370
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 32
20
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 4.9
3.7
Embodied Energy, MJ/kg 65
52
Embodied Water, L/kg 140
180

Common Calculations

PREN (Pitting Resistance) 16
25
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 33 to 61
22
Strength to Weight: Bending, points 26 to 40
21
Thermal Shock Resistance, points 29 to 54
16

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 0.15
Chromium (Cr), % 0
22 to 25
Cobalt (Co), % 7.0 to 8.5
0
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 66.3 to 71.1
55.8 to 65.5
Manganese (Mn), % 0 to 0.1
0.5 to 2.5
Molybdenum (Mo), % 4.6 to 5.2
0 to 0.75
Nickel (Ni), % 17 to 19
12 to 14
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