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ASTM A182 Grade FR vs. SAE-AISI 1552 Steel

Both ASTM A182 grade FR and SAE-AISI 1552 steel are iron alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is ASTM A182 grade FR and the bottom bar is SAE-AISI 1552 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
220 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 28
11 to 14
Fatigue Strength, MPa 270
290 to 400
Poisson's Ratio 0.29
0.29
Reduction in Area, % 43
34 to 46
Shear Modulus, GPa 72
72
Shear Strength, MPa 320
460 to 510
Tensile Strength: Ultimate (UTS), MPa 490
760 to 840
Tensile Strength: Yield (Proof), MPa 360
460 to 650

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
51
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
12

Otherwise Unclassified Properties

Base Metal Price, % relative 3.3
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.4
Embodied Energy, MJ/kg 21
19
Embodied Water, L/kg 52
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
81 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 340
560 to 1130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
27 to 30
Strength to Weight: Bending, points 17
24 to 25
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 14
26 to 29

Alloy Composition

Carbon (C), % 0 to 0.2
0.47 to 0.55
Copper (Cu), % 0.75 to 1.3
0
Iron (Fe), % 95.2 to 97.3
97.9 to 98.3
Manganese (Mn), % 0.4 to 1.1
1.2 to 1.5
Nickel (Ni), % 1.6 to 2.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Sulfur (S), % 0 to 0.050
0 to 0.050