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ASTM A387 Grade 22L Class 1 vs. SAE-AISI 1144 Steel

Both ASTM A387 grade 22L class 1 and SAE-AISI 1144 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 (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A387 grade 22L class 1 and the bottom bar is SAE-AISI 1144 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
220 to 230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
11 to 17
Fatigue Strength, MPa 160
280 to 430
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
72
Shear Strength, MPa 310
460 to 510
Tensile Strength: Ultimate (UTS), MPa 500
750 to 840
Tensile Strength: Yield (Proof), MPa 230
420 to 690

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 460
400
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1430
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
51
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
1.9
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.4
Embodied Energy, MJ/kg 23
19
Embodied Water, L/kg 58
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
91 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
480 to 1290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
27 to 30
Strength to Weight: Bending, points 18
23 to 25
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 14
22 to 24

Alloy Composition

Carbon (C), % 0 to 0.1
0.4 to 0.48
Chromium (Cr), % 2.0 to 2.5
0
Iron (Fe), % 95.2 to 96.8
97.5 to 98
Manganese (Mn), % 0.3 to 0.6
1.4 to 1.7
Molybdenum (Mo), % 0.9 to 1.1
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.025
0.24 to 0.33