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ASTM A182 Grade FR vs. SAE-AISI 1345 Steel

Both ASTM A182 grade FR and SAE-AISI 1345 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 (1, in this case) are not shown.

For each property being compared, the top bar is ASTM A182 grade FR and the bottom bar is SAE-AISI 1345 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 28
11 to 23
Fatigue Strength, MPa 270
230 to 390
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
72
Shear Strength, MPa 320
370 to 440
Tensile Strength: Ultimate (UTS), MPa 490
590 to 730
Tensile Strength: Yield (Proof), MPa 360
330 to 620

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.3
1.9
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
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
78 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 340
290 to 1040
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
21 to 26
Strength to Weight: Bending, points 17
20 to 23
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 14
19 to 23

Alloy Composition

Carbon (C), % 0 to 0.2
0.43 to 0.48
Copper (Cu), % 0.75 to 1.3
0
Iron (Fe), % 95.2 to 97.3
97.2 to 97.8
Manganese (Mn), % 0.4 to 1.1
1.6 to 1.9
Nickel (Ni), % 1.6 to 2.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0 to 0.050
0 to 0.040