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ASTM A387 Grade 22 Steel vs. SAE-AISI 1070 Steel

Both ASTM A387 grade 22 steel and SAE-AISI 1070 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 22 steel and the bottom bar is SAE-AISI 1070 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150 to 180
190 to 230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
10 to 13
Fatigue Strength, MPa 160 to 240
270 to 350
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
72
Shear Strength, MPa 300 to 380
380 to 460
Tensile Strength: Ultimate (UTS), MPa 480 to 600
640 to 760
Tensile Strength: Yield (Proof), MPa 230 to 350
420 to 560

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
10
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
12

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
1.8
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
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 85 to 110
59 to 86
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 320
470 to 850
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 21
23 to 27
Strength to Weight: Bending, points 17 to 20
21 to 24
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 14 to 17
21 to 25

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.65 to 0.75
Chromium (Cr), % 2.0 to 2.5
0
Iron (Fe), % 95.1 to 96.8
98.3 to 98.8
Manganese (Mn), % 0.3 to 0.6
0.6 to 0.9
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 to 0.050