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ASTM A369 Grade FP11 vs. SAE-AISI D4 Steel

Both ASTM A369 grade FP11 and SAE-AISI D4 steel are iron alloys. They have 86% of their average alloy composition in common. There are 29 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 A369 grade FP11 and the bottom bar is SAE-AISI D4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
8.4 to 15
Fatigue Strength, MPa 160
310 to 920
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
74
Shear Strength, MPa 300
460 to 1210
Tensile Strength: Ultimate (UTS), MPa 470
760 to 2060
Tensile Strength: Yield (Proof), MPa 240
470 to 1540

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
31
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
4.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
5.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
8.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.6
3.3
Embodied Energy, MJ/kg 21
49
Embodied Water, L/kg 52
100

Common Calculations

PREN (Pitting Resistance) 3.0
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
100 to 160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
27 to 75
Strength to Weight: Bending, points 17
24 to 47
Thermal Diffusivity, mm2/s 11
8.3
Thermal Shock Resistance, points 14
23 to 63

Alloy Composition

Carbon (C), % 0.050 to 0.15
2.1 to 2.4
Chromium (Cr), % 1.0 to 1.5
11 to 13
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 96.1 to 97.7
80.6 to 86.3
Manganese (Mn), % 0.3 to 0.6
0 to 0.6
Molybdenum (Mo), % 0.44 to 0.65
0.7 to 1.2
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0.5 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.025
0 to 0.030
Vanadium (V), % 0
0 to 1.0