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AISI 347LN Stainless Steel vs. ACI-ASTM CG6MMN Steel

Both AISI 347LN stainless steel and ACI-ASTM CG6MMN steel are iron alloys. They have 88% 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 AISI 347LN stainless steel and the bottom bar is ACI-ASTM CG6MMN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
34
Fatigue Strength, MPa 200
260
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 590
670
Tensile Strength: Yield (Proof), MPa 230
320

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 460
460
Maximum Temperature: Mechanical, °C 940
1080
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 18
22
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.5
4.8
Embodied Energy, MJ/kg 49
68
Embodied Water, L/kg 150
180

Common Calculations

PREN (Pitting Resistance) 19
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
190
Resilience: Unit (Modulus of Resilience), kJ/m3 130
260
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
24
Strength to Weight: Bending, points 20
22
Thermal Shock Resistance, points 13
14

Alloy Composition

Carbon (C), % 0.0050 to 0.020
0 to 0.060
Chromium (Cr), % 17 to 19
20.5 to 23.5
Iron (Fe), % 64.3 to 73.7
51.9 to 62.1
Manganese (Mn), % 0 to 2.0
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 9.0 to 13
11.5 to 13.5
Niobium (Nb), % 0.2 to 0.5
0.1 to 0.3
Nitrogen (N), % 0.060 to 0.1
0.2 to 0.4
Phosphorus (P), % 0 to 0.045
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
0.1 to 0.3