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Grade 350 Maraging Steel vs. AISI 334 Stainless Steel

Both grade 350 maraging steel and AISI 334 stainless steel are iron alloys. They have 78% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 350 maraging steel and the bottom bar is AISI 334 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 4.1 to 18
34
Poisson's Ratio 0.3
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 710 to 1400
360
Tensile Strength: Ultimate (UTS), MPa 1140 to 2420
540
Tensile Strength: Yield (Proof), MPa 830 to 2300
190

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Melting Completion (Liquidus), °C 1470
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 450
480
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 39
22
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 5.6
4.1
Embodied Energy, MJ/kg 74
59
Embodied Water, L/kg 160
170

Common Calculations

PREN (Pitting Resistance) 16
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 190
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 38 to 82
19
Strength to Weight: Bending, points 29 to 49
19
Thermal Shock Resistance, points 35 to 74
12

Alloy Composition

Aluminum (Al), % 0.050 to 0.15
0.15 to 0.6
Boron (B), % 0 to 0.0030
0
Calcium (Ca), % 0 to 0.050
0
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 0
18 to 20
Cobalt (Co), % 11.5 to 12.5
0
Iron (Fe), % 61.2 to 64.6
55.7 to 62.7
Manganese (Mn), % 0 to 0.1
0 to 1.0
Molybdenum (Mo), % 4.6 to 5.2
0
Nickel (Ni), % 18 to 19
19 to 21
Phosphorus (P), % 0 to 0.010
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 1.3 to 1.6
0.15 to 0.6
Zirconium (Zr), % 0 to 0.020
0