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AWS E430Nb vs. Grade 300 Maraging Steel

Both AWS E430Nb and grade 300 maraging steel are iron alloys. They have 68% 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 AWS E430Nb and the bottom bar is grade 300 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
6.5 to 18
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 77
75
Tensile Strength: Ultimate (UTS), MPa 500
1030 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1450
1480
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 480
450
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 15
34
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 3.1
5.1
Embodied Energy, MJ/kg 45
68
Embodied Water, L/kg 120
150

Common Calculations

PREN (Pitting Resistance) 18
16
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 18
35 to 68
Strength to Weight: Bending, points 18
28 to 43
Thermal Shock Resistance, points 13
31 to 62

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 15 to 18
0
Cobalt (Co), % 0
8.5 to 9.5
Copper (Cu), % 0 to 0.75
0
Iron (Fe), % 76.2 to 84.5
65 to 68.4
Manganese (Mn), % 0 to 1.0
0 to 0.1
Molybdenum (Mo), % 0 to 0.75
4.6 to 5.2
Nickel (Ni), % 0 to 0.6
18 to 19
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0.5 to 0.8
Zirconium (Zr), % 0
0 to 0.020