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SAE-AISI 1008 Steel vs. ASTM A182 Grade FR

Both SAE-AISI 1008 steel and ASTM A182 grade FR 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 SAE-AISI 1008 steel and the bottom bar is ASTM A182 grade FR.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 93 to 100
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22 to 33
28
Fatigue Strength, MPa 150 to 220
270
Poisson's Ratio 0.29
0.29
Reduction in Area, % 50 to 63
43
Shear Modulus, GPa 73
72
Shear Strength, MPa 220 to 230
320
Tensile Strength: Ultimate (UTS), MPa 330 to 370
490
Tensile Strength: Yield (Proof), MPa 190 to 310
360

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 62
52
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
3.3
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.6
Embodied Energy, MJ/kg 18
21
Embodied Water, L/kg 45
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 91
120
Resilience: Unit (Modulus of Resilience), kJ/m3 92 to 260
340
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 12 to 13
17
Strength to Weight: Bending, points 13 to 15
17
Thermal Diffusivity, mm2/s 17
14
Thermal Shock Resistance, points 10 to 12
14

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.2
Copper (Cu), % 0
0.75 to 1.3
Iron (Fe), % 99.31 to 99.7
95.2 to 97.3
Manganese (Mn), % 0.3 to 0.5
0.4 to 1.1
Nickel (Ni), % 0
1.6 to 2.2
Phosphorus (P), % 0 to 0.040
0 to 0.045
Sulfur (S), % 0 to 0.050
0 to 0.050