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ACI-ASTM CG6MMN Steel vs. AISI 429 Stainless Steel

Both ACI-ASTM CG6MMN steel and AISI 429 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 28 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 AISI 429 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
25
Fatigue Strength, MPa 260
180
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 670
480
Tensile Strength: Yield (Proof), MPa 320
260

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 460
400
Maximum Temperature: Mechanical, °C 1080
810
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
10

Otherwise Unclassified Properties

Base Metal Price, % relative 22
7.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.8
2.0
Embodied Energy, MJ/kg 68
28
Embodied Water, L/kg 180
110

Common Calculations

PREN (Pitting Resistance) 34
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
99
Resilience: Unit (Modulus of Resilience), kJ/m3 260
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
17
Strength to Weight: Bending, points 22
18
Thermal Shock Resistance, points 14
17

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.12
Chromium (Cr), % 20.5 to 23.5
14 to 16
Iron (Fe), % 51.9 to 62.1
81.8 to 86
Manganese (Mn), % 4.0 to 6.0
0 to 1.0
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
0
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.1 to 0.3
0