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ASTM A387 Grade 22 Steel vs. SAE-AISI 9254 Steel

Both ASTM A387 grade 22 steel and SAE-AISI 9254 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 22 steel and the bottom bar is SAE-AISI 9254 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
20
Fatigue Strength, MPa 160 to 240
280
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
72
Shear Strength, MPa 300 to 380
410
Tensile Strength: Ultimate (UTS), MPa 480 to 600
660
Tensile Strength: Yield (Proof), MPa 230 to 350
410

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Maximum Temperature: Mechanical, °C 460
410
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
2.2
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.7
1.5
Embodied Energy, MJ/kg 23
20
Embodied Water, L/kg 58
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
450
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 21
24
Strength to Weight: Bending, points 17 to 20
22
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 14 to 17
20

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.51 to 0.59
Chromium (Cr), % 2.0 to 2.5
0.6 to 0.8
Iron (Fe), % 95.1 to 96.8
96.1 to 97.1
Manganese (Mn), % 0.3 to 0.6
0.6 to 0.8
Molybdenum (Mo), % 0.9 to 1.1
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.5
1.2 to 1.6
Sulfur (S), % 0 to 0.025
0 to 0.040