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Grade 200 Maraging Steel vs. S44700 Stainless Steel

Both grade 200 maraging steel and S44700 stainless steel are iron alloys. They have 70% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is grade 200 maraging steel and the bottom bar is S44700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 9.1 to 18
23
Poisson's Ratio 0.3
0.27
Rockwell C Hardness 29 to 45
17
Shear Modulus, GPa 74
82
Shear Strength, MPa 600 to 890
380
Tensile Strength: Ultimate (UTS), MPa 970 to 1500
600
Tensile Strength: Yield (Proof), MPa 690 to 1490
450

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 31
18
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 4.5
3.6
Embodied Energy, MJ/kg 59
49
Embodied Water, L/kg 140
180

Common Calculations

PREN (Pitting Resistance) 11
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1240 to 5740
480
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 33 to 51
21
Strength to Weight: Bending, points 27 to 35
20
Thermal Shock Resistance, points 29 to 45
19

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 0.010
Chromium (Cr), % 0
28 to 30
Cobalt (Co), % 8.0 to 9.0
0
Copper (Cu), % 0
0 to 0.15
Iron (Fe), % 67.8 to 71.8
64.9 to 68.5
Manganese (Mn), % 0 to 0.1
0 to 0.3
Molybdenum (Mo), % 3.0 to 3.5
3.5 to 4.2
Nickel (Ni), % 17 to 19
0 to 0.15
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.010
0 to 0.025
Silicon (Si), % 0 to 0.1
0 to 0.2
Sulfur (S), % 0 to 0.010
0 to 0.020
Titanium (Ti), % 0.15 to 0.25
0
Zirconium (Zr), % 0 to 0.020
0