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SAE-AISI 1074 Steel vs. ASTM A387 Grade 22 Steel

Both SAE-AISI 1074 steel and ASTM A387 grade 22 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 SAE-AISI 1074 steel and the bottom bar is ASTM A387 grade 22 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
150 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 14
21
Fatigue Strength, MPa 290 to 350
160 to 240
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
74
Shear Strength, MPa 440 to 490
300 to 380
Tensile Strength: Ultimate (UTS), MPa 740 to 820
480 to 600
Tensile Strength: Yield (Proof), MPa 450 to 570
230 to 350

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
460
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
40
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
3.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.7
Embodied Energy, MJ/kg 19
23
Embodied Water, L/kg 46
58

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
85 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 550 to 860
140 to 320
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26 to 29
17 to 21
Strength to Weight: Bending, points 23 to 25
17 to 20
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 24 to 26
14 to 17

Alloy Composition

Carbon (C), % 0.7 to 0.8
0.050 to 0.15
Chromium (Cr), % 0
2.0 to 2.5
Iron (Fe), % 98.3 to 98.8
95.1 to 96.8
Manganese (Mn), % 0.5 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.025