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ACI-ASTM CA6NM Steel vs. Grade 200 Maraging Steel

Both ACI-ASTM CA6NM steel and grade 200 maraging steel are iron alloys. They have 75% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA6NM 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, % 17
9.1 to 18
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 76
74
Tensile Strength: Ultimate (UTS), MPa 850
970 to 1500
Tensile Strength: Yield (Proof), MPa 620
690 to 1490

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
31
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 2.5
4.5
Embodied Energy, MJ/kg 34
59
Embodied Water, L/kg 110
140

Common Calculations

PREN (Pitting Resistance) 15
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
1240 to 5740
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 30
33 to 51
Strength to Weight: Bending, points 26
27 to 35
Thermal Shock Resistance, points 31
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 0.060
0 to 0.030
Chromium (Cr), % 11.5 to 14
0
Cobalt (Co), % 0
8.0 to 9.0
Iron (Fe), % 78.4 to 84.6
67.8 to 71.8
Manganese (Mn), % 0 to 1.0
0 to 0.1
Molybdenum (Mo), % 0.4 to 1.0
3.0 to 3.5
Nickel (Ni), % 3.5 to 4.5
17 to 19
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
0.15 to 0.25
Zirconium (Zr), % 0
0 to 0.020