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ACI-ASTM CG6MMN Steel vs. S31266 Stainless Steel

Both ACI-ASTM CG6MMN steel and S31266 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CG6MMN steel and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
40
Fatigue Strength, MPa 260
400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
81
Tensile Strength: Ultimate (UTS), MPa 670
860
Tensile Strength: Yield (Proof), MPa 320
470

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 460
440
Maximum Temperature: Mechanical, °C 1080
1100
Melting Completion (Liquidus), °C 1420
1470
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 22
37
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 4.8
6.5
Embodied Energy, MJ/kg 68
89
Embodied Water, L/kg 180
220

Common Calculations

PREN (Pitting Resistance) 34
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
290
Resilience: Unit (Modulus of Resilience), kJ/m3 260
540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
29
Strength to Weight: Bending, points 22
24
Thermal Shock Resistance, points 14
18

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.030
Chromium (Cr), % 20.5 to 23.5
23 to 25
Copper (Cu), % 0
1.0 to 2.5
Iron (Fe), % 51.9 to 62.1
34.1 to 46
Manganese (Mn), % 4.0 to 6.0
2.0 to 4.0
Molybdenum (Mo), % 1.5 to 3.0
5.2 to 6.2
Nickel (Ni), % 11.5 to 13.5
21 to 24
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0.35 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5
Vanadium (V), % 0.1 to 0.3
0