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ASTM A387 Grade 9 Steel vs. SAE-AISI H22 Steel

Both ASTM A387 grade 9 steel and SAE-AISI H22 steel are iron alloys. They have 88% 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 ASTM A387 grade 9 steel and the bottom bar is SAE-AISI H22 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 500 to 600
700 to 1920

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1460
1670
Melting Onset (Solidus), °C 1410
1620
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 26
31
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
28
Density, g/cm3 7.8
8.7
Embodied Carbon, kg CO2/kg material 2.1
4.9
Embodied Energy, MJ/kg 28
73
Embodied Water, L/kg 87
72

Common Calculations

PREN (Pitting Resistance) 12
21
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 18 to 21
22 to 61
Strength to Weight: Bending, points 18 to 20
20 to 39
Thermal Diffusivity, mm2/s 6.9
8.2
Thermal Shock Resistance, points 14 to 17
22 to 60

Alloy Composition

Carbon (C), % 0 to 0.15
0.3 to 0.4
Chromium (Cr), % 8.0 to 10
1.8 to 3.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 87.1 to 90.8
82.2 to 87.4
Manganese (Mn), % 0.3 to 0.6
0.15 to 0.4
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0
10 to 11.8
Vanadium (V), % 0 to 0.040
0.25 to 0.5

Comparable Variants