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SAE-AISI H42 Steel vs. ASTM A387 Grade 5 Steel

Both SAE-AISI H42 steel and ASTM A387 grade 5 steel are iron alloys. They have 87% 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 A387 grade 5 steel.

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
74
Tensile Strength: Ultimate (UTS), MPa 700 to 1980
500 to 600

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
4.3
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 8.8
1.7
Embodied Energy, MJ/kg 130
23
Embodied Water, L/kg 98
69

Common Calculations

PREN (Pitting Resistance) 31
6.8
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 23 to 65
18 to 21
Strength to Weight: Bending, points 21 to 42
18 to 20
Thermal Diffusivity, mm2/s 6.5
11
Thermal Shock Resistance, points 20 to 57
14 to 17

Alloy Composition

Carbon (C), % 0.55 to 0.7
0 to 0.15
Chromium (Cr), % 3.8 to 4.5
4.0 to 6.0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 79.3 to 83.8
92.1 to 95.3
Manganese (Mn), % 0.15 to 0.4
0.3 to 0.6
Molybdenum (Mo), % 4.5 to 5.5
0.45 to 0.65
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0
0 to 0.5
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

Comparable Variants