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ASTM A182 Grade F911 vs. ASTM A182 Grade F24

Both ASTM A182 grade F911 and ASTM A182 grade F24 are iron alloys. Both are furnished in the normalized and tempered condition. They have a moderately high 92% of their average alloy composition in common.

For each property being compared, the top bar is ASTM A182 grade F911 and the bottom bar is ASTM A182 grade F24.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
23
Fatigue Strength, MPa 350
330
Poisson's Ratio 0.28
0.29
Reduction in Area, % 46
45
Shear Modulus, GPa 76
74
Shear Strength, MPa 430
420
Tensile Strength: Ultimate (UTS), MPa 690
670
Tensile Strength: Yield (Proof), MPa 500
460

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 600
460
Melting Completion (Liquidus), °C 1480
1470
Melting Onset (Solidus), °C 1440
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.2
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 10
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
4.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.8
2.3
Embodied Energy, MJ/kg 40
33
Embodied Water, L/kg 90
61

Common Calculations

PREN (Pitting Resistance) 15
6.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
140
Resilience: Unit (Modulus of Resilience), kJ/m3 650
570
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
24
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 6.9
11
Thermal Shock Resistance, points 19
19

Alloy Composition

Aluminum (Al), % 0 to 0.020
0 to 0.020
Boron (B), % 0.00030 to 0.0060
0.0015 to 0.0070
Carbon (C), % 0.090 to 0.13
0.050 to 0.1
Chromium (Cr), % 8.5 to 9.5
2.2 to 2.6
Iron (Fe), % 86.2 to 88.9
94.5 to 96.1
Manganese (Mn), % 0.3 to 0.6
0.3 to 0.7
Molybdenum (Mo), % 0.9 to 1.1
0.9 to 1.1
Nickel (Ni), % 0 to 0.4
0
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.040 to 0.090
0 to 0.12
Phosphorus (P), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0.1 to 0.5
0.15 to 0.45
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0 to 0.010
0.060 to 0.1
Tungsten (W), % 0.9 to 1.1
0
Vanadium (V), % 0.18 to 0.25
0.2 to 0.3
Zirconium (Zr), % 0 to 0.010
0