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ASTM A387 Grade 22L Class 1 vs. ACI-ASTM CE8MN Steel

Both ASTM A387 grade 22L class 1 and ACI-ASTM CE8MN steel are iron alloys. They have 65% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 ACI-ASTM CE8MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
29
Fatigue Strength, MPa 160
370
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
80
Tensile Strength: Ultimate (UTS), MPa 500
750
Tensile Strength: Yield (Proof), MPa 230
500

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 460
1100
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
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
21
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
4.2
Embodied Energy, MJ/kg 23
58
Embodied Water, L/kg 58
180

Common Calculations

PREN (Pitting Resistance) 5.6
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
190
Resilience: Unit (Modulus of Resilience), kJ/m3 140
620
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 18
27
Strength to Weight: Bending, points 18
23
Thermal Diffusivity, mm2/s 11
4.2
Thermal Shock Resistance, points 14
21

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.080
Chromium (Cr), % 2.0 to 2.5
22.5 to 25.5
Iron (Fe), % 95.2 to 96.8
56 to 66.4
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.1
3.0 to 4.5
Nickel (Ni), % 0
8.0 to 11
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.5
Sulfur (S), % 0 to 0.025
0 to 0.040