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ASTM A182 Grade F23 vs. ASTM A372 Grade M Steel

Both ASTM A182 grade F23 and ASTM A372 grade M steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A182 grade F23 and the bottom bar is ASTM A372 grade M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
240 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
18 to 21
Fatigue Strength, MPa 320
450 to 520
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 360
510 to 570
Tensile Strength: Ultimate (UTS), MPa 570
810 to 910
Tensile Strength: Yield (Proof), MPa 460
660 to 770

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 450
450
Melting Completion (Liquidus), °C 1500
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 41
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
5.0
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 2.5
2.0
Embodied Energy, MJ/kg 36
27
Embodied Water, L/kg 59
61

Common Calculations

PREN (Pitting Resistance) 5.7
3.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
160
Resilience: Unit (Modulus of Resilience), kJ/m3 550
1140 to 1580
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
29 to 32
Strength to Weight: Bending, points 19
24 to 27
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 17
24 to 27

Alloy Composition

Aluminum (Al), % 0 to 0.030
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.040 to 0.1
0 to 0.23
Chromium (Cr), % 1.9 to 2.6
1.5 to 2.0
Iron (Fe), % 93.2 to 96.2
92.5 to 95.1
Manganese (Mn), % 0.1 to 0.6
0.2 to 0.4
Molybdenum (Mo), % 0.050 to 0.3
0.4 to 0.6
Nickel (Ni), % 0 to 0.4
2.8 to 3.9
Niobium (Nb), % 0.020 to 0.080
0
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0 to 0.5
0 to 0.3
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0.0050 to 0.060
0
Tungsten (W), % 1.5 to 1.8
0
Vanadium (V), % 0.2 to 0.3
0 to 0.080