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ASTM A182 Grade F11 Class 1 vs. ASTM A387 Grade 2 Steel

Both ASTM A182 grade F11 class 1 and ASTM A387 grade 2 steel are iron alloys. They have a very high 99% 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 F11 class 1 and the bottom bar is ASTM A387 grade 2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
140 to 170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
25
Fatigue Strength, MPa 160
190 to 250
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300
300 to 350
Tensile Strength: Ultimate (UTS), MPa 470
470 to 550
Tensile Strength: Yield (Proof), MPa 230
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 430
420
Melting Completion (Liquidus), °C 1460
1470
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
2.6
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
1.6
Embodied Energy, MJ/kg 21
20
Embodied Water, L/kg 52
50

Common Calculations

PREN (Pitting Resistance) 3.0
2.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
180 to 320
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
16 to 20
Strength to Weight: Bending, points 17
17 to 19
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 14
14 to 16

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.050 to 0.21
Chromium (Cr), % 1.0 to 1.5
0.5 to 0.8
Iron (Fe), % 96 to 97.7
97.1 to 98.3
Manganese (Mn), % 0.3 to 0.6
0.55 to 0.8
Molybdenum (Mo), % 0.44 to 0.65
0.45 to 0.6
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0.5 to 1.0
0.15 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.025