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ASTM A182 Grade F6b vs. ACI-ASTM CN7M Steel

Both ASTM A182 grade F6b and ACI-ASTM CN7M steel are iron alloys. They have 59% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A182 grade F6b and the bottom bar is ACI-ASTM CN7M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 18
44
Fatigue Strength, MPa 440
190
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 850
480
Tensile Strength: Yield (Proof), MPa 710
200

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 390
430
Maximum Temperature: Mechanical, °C 750
1100
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1400
1450
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
21
Thermal Expansion, µm/m-K 10
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
32
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.2
5.6
Embodied Energy, MJ/kg 30
78
Embodied Water, L/kg 100
210

Common Calculations

PREN (Pitting Resistance) 14
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
170
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
17
Strength to Weight: Bending, points 26
17
Thermal Diffusivity, mm2/s 6.7
5.6
Thermal Shock Resistance, points 31
12

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.070
Chromium (Cr), % 11.5 to 13.5
19 to 22
Copper (Cu), % 0 to 0.5
3.0 to 4.0
Iron (Fe), % 81.2 to 87.1
37.4 to 48.5
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0.4 to 0.6
2.0 to 3.0
Nickel (Ni), % 1.0 to 2.0
27.5 to 30.5
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.020
0 to 0.040