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ASTM A182 Grade F10 vs. ASTM A387 Grade 21 Steel

Both ASTM A182 grade F10 and ASTM A387 grade 21 steel are iron alloys. They have 73% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A182 grade F10 and the bottom bar is ASTM A387 grade 21 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 34
21
Fatigue Strength, MPa 180
160 to 250
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
74
Shear Strength, MPa 420
310 to 370
Tensile Strength: Ultimate (UTS), MPa 630
500 to 590
Tensile Strength: Yield (Proof), MPa 230
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 600
480
Melting Completion (Liquidus), °C 1420
1470
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 17
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 18
4.1
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 3.6
1.8
Embodied Energy, MJ/kg 51
23
Embodied Water, L/kg 120
62

Common Calculations

PREN (Pitting Resistance) 8.0
6.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
84 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
140 to 320
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
18 to 21
Strength to Weight: Bending, points 21
18 to 20
Thermal Shock Resistance, points 18
14 to 17

Alloy Composition

Carbon (C), % 0.1 to 0.2
0.050 to 0.15
Chromium (Cr), % 7.0 to 9.0
2.8 to 3.3
Iron (Fe), % 66.5 to 72.4
94.4 to 96
Manganese (Mn), % 0.5 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 19 to 22
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 1.0 to 1.4
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.025