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ASTM A182 Grade F11 Class 1 vs. ASTM A372 Grade H Steel

Both ASTM A182 grade F11 class 1 and ASTM A372 grade H steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 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 F11 class 1 and the bottom bar is ASTM A372 grade H steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
200 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
20 to 22
Fatigue Strength, MPa 160
310 to 380
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300
410 to 570
Tensile Strength: Ultimate (UTS), MPa 470
650 to 910
Tensile Strength: Yield (Proof), MPa 230
430 to 550

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 430
410
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
45
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.5
Embodied Energy, MJ/kg 21
20
Embodied Water, L/kg 52
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
130 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 140
500 to 810
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
23 to 32
Strength to Weight: Bending, points 17
21 to 27
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 14
19 to 27

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.3 to 0.4
Chromium (Cr), % 1.0 to 1.5
0.4 to 0.65
Iron (Fe), % 96 to 97.7
97.3 to 98.3
Manganese (Mn), % 0.3 to 0.6
0.75 to 1.1
Molybdenum (Mo), % 0.44 to 0.65
0.15 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0.5 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.010