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AISI 347 Stainless Steel vs. Grade 200 Maraging Steel

Both AISI 347 stainless steel and grade 200 maraging steel are iron alloys. They have 80% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AISI 347 stainless steel and the bottom bar is grade 200 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34 to 46
9.1 to 18
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 77
74
Shear Strength, MPa 430 to 460
600 to 890
Tensile Strength: Ultimate (UTS), MPa 610 to 690
970 to 1500
Tensile Strength: Yield (Proof), MPa 240 to 350
690 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 19
31
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 3.6
4.5
Embodied Energy, MJ/kg 52
59
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 18
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 220
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 310
1240 to 5740
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 22 to 25
33 to 51
Strength to Weight: Bending, points 20 to 22
27 to 35
Thermal Shock Resistance, points 13 to 15
29 to 45

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 0.080
0 to 0.030
Chromium (Cr), % 17 to 19
0
Cobalt (Co), % 0
8.0 to 9.0
Iron (Fe), % 64.1 to 74
67.8 to 71.8
Manganese (Mn), % 0 to 2.0
0 to 0.1
Molybdenum (Mo), % 0
3.0 to 3.5
Nickel (Ni), % 9.0 to 13
17 to 19
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.010
Silicon (Si), % 0 to 0.75
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0.15 to 0.25
Zirconium (Zr), % 0
0 to 0.020