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ACI-ASTM CK3MCuN Steel vs. ASTM Grade HG10 MNN Steel

Both ACI-ASTM CK3MCuN steel and ASTM grade HG10 MNN steel are iron alloys. They have 87% of their average alloy composition in common.

For each property being compared, the top bar is ACI-ASTM CK3MCuN steel and the bottom bar is ASTM grade HG10 MNN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
23
Fatigue Strength, MPa 250
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
77
Tensile Strength: Ultimate (UTS), MPa 620
590
Tensile Strength: Yield (Proof), MPa 290
250

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
500
Maximum Temperature: Mechanical, °C 1090
990
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1350
1370
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 29
21
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.6
4.0
Embodied Energy, MJ/kg 76
58
Embodied Water, L/kg 190
160

Common Calculations

PREN (Pitting Resistance) 45
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
110
Resilience: Unit (Modulus of Resilience), kJ/m3 210
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
21
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 3.2
3.9
Thermal Shock Resistance, points 14
13

Alloy Composition

Carbon (C), % 0 to 0.025
0.070 to 0.11
Chromium (Cr), % 19.5 to 20.5
18.5 to 20.5
Copper (Cu), % 0.5 to 1.0
0 to 0.5
Iron (Fe), % 49.5 to 56.3
57.9 to 66.5
Manganese (Mn), % 0 to 1.2
3.0 to 5.0
Molybdenum (Mo), % 6.0 to 7.0
0.25 to 0.45
Nickel (Ni), % 17.5 to 19.5
11.5 to 13.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0.18 to 0.24
0.2 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.010
0 to 0.030