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EN 1.4971 Stainless Steel vs. Grade 300 Maraging Steel

Both EN 1.4971 stainless steel and grade 300 maraging steel are iron alloys. They have 61% of their average alloy composition in common. There are 24 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 EN 1.4971 stainless steel and the bottom bar is grade 300 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 34
6.5 to 18
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 81
75
Shear Strength, MPa 530
640 to 1190
Tensile Strength: Ultimate (UTS), MPa 800
1030 to 2030
Tensile Strength: Yield (Proof), MPa 340
760 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 450
450
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 70
34
Density, g/cm3 8.4
8.2
Embodied Carbon, kg CO2/kg material 7.6
5.1
Embodied Energy, MJ/kg 110
68
Embodied Water, L/kg 300
150

Common Calculations

PREN (Pitting Resistance) 38
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
130 to 170
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 26
35 to 68
Strength to Weight: Bending, points 23
28 to 43
Thermal Shock Resistance, points 19
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), % 0.080 to 0.16
0 to 0.030
Chromium (Cr), % 20 to 22.5
0
Cobalt (Co), % 18.5 to 21
8.5 to 9.5
Iron (Fe), % 24.3 to 37.1
65 to 68.4
Manganese (Mn), % 0 to 2.0
0 to 0.1
Molybdenum (Mo), % 2.5 to 3.5
4.6 to 5.2
Nickel (Ni), % 19 to 21
18 to 19
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
0.5 to 0.8
Tungsten (W), % 2.0 to 3.0
0
Zirconium (Zr), % 0
0 to 0.020