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ACI-ASTM CF16F Steel vs. ASTM A387 Grade 21L Class 1

Both ACI-ASTM CF16F steel and ASTM A387 grade 21L class 1 are iron alloys. They have 72% 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 ACI-ASTM CF16F steel and the bottom bar is ASTM A387 grade 21L class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 50
21
Fatigue Strength, MPa 270
160
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 530
500
Tensile Strength: Yield (Proof), MPa 280
230

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Maximum Temperature: Mechanical, °C 980
480
Melting Completion (Liquidus), °C 1420
1470
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
41
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 18
4.1
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.4
1.8
Embodied Energy, MJ/kg 47
23
Embodied Water, L/kg 150
62

Common Calculations

PREN (Pitting Resistance) 22
6.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
84
Resilience: Unit (Modulus of Resilience), kJ/m3 190
140
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
18
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 4.3
11
Thermal Shock Resistance, points 12
14

Alloy Composition

Carbon (C), % 0 to 0.16
0 to 0.1
Chromium (Cr), % 18 to 21
2.8 to 3.3
Iron (Fe), % 61.3 to 72.8
94.4 to 96.1
Manganese (Mn), % 0 to 1.5
0.3 to 0.6
Molybdenum (Mo), % 0 to 1.5
0.9 to 1.1
Nickel (Ni), % 9.0 to 12
0
Phosphorus (P), % 0 to 0.17
0 to 0.025
Selenium (Se), % 0.2 to 0.35
0
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.025