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SAE-AISI H42 Steel vs. ASTM A369 Grade FP11

Both SAE-AISI H42 steel and ASTM A369 grade FP11 are iron alloys. They have 84% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI H42 steel and the bottom bar is ASTM A369 grade FP11.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 700 to 1980
470

Thermal Properties

Latent Heat of Fusion, J/g 260
260
Melting Completion (Liquidus), °C 1620
1460
Melting Onset (Solidus), °C 1570
1420
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 24
40
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 24
2.9
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 8.8
1.6
Embodied Energy, MJ/kg 130
21
Embodied Water, L/kg 98
52

Common Calculations

PREN (Pitting Resistance) 31
3.0
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 23 to 65
17
Strength to Weight: Bending, points 21 to 42
17
Thermal Diffusivity, mm2/s 6.5
11
Thermal Shock Resistance, points 20 to 57
14

Alloy Composition

Carbon (C), % 0.55 to 0.7
0.050 to 0.15
Chromium (Cr), % 3.8 to 4.5
1.0 to 1.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 79.3 to 83.8
96.1 to 97.7
Manganese (Mn), % 0.15 to 0.4
0.3 to 0.6
Molybdenum (Mo), % 4.5 to 5.5
0.44 to 0.65
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0
0.5 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0