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ASTM A182 Grade FR vs. SAE-AISI 1132 Steel

Both ASTM A182 grade FR and SAE-AISI 1132 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 1132 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
190 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 28
14 to 18
Fatigue Strength, MPa 270
240 to 380
Poisson's Ratio 0.29
0.29
Reduction in Area, % 43
39 to 46
Shear Modulus, GPa 72
73
Shear Strength, MPa 320
400 to 440
Tensile Strength: Ultimate (UTS), MPa 490
640 to 720
Tensile Strength: Yield (Proof), MPa 360
350 to 590

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
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.2

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
93 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 340
330 to 940
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
23 to 25
Strength to Weight: Bending, points 17
21 to 23
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 14
19 to 22

Alloy Composition

Carbon (C), % 0 to 0.2
0.24 to 0.34
Copper (Cu), % 0.75 to 1.3
0
Iron (Fe), % 95.2 to 97.3
97.8 to 98.3
Manganese (Mn), % 0.4 to 1.1
1.4 to 1.7
Nickel (Ni), % 1.6 to 2.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Sulfur (S), % 0 to 0.050
0.080 to 0.13