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ASTM A356 Grade 9 vs. SAE-AISI 1212 Steel

Both ASTM A356 grade 9 and SAE-AISI 1212 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 (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A356 grade 9 and the bottom bar is SAE-AISI 1212 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
140 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
11 to 28
Fatigue Strength, MPa 310
200 to 290
Poisson's Ratio 0.29
0.29
Reduction in Area, % 50
39 to 51
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 670
440 to 620
Tensile Strength: Yield (Proof), MPa 460
260 to 460

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 440
400
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 41
52
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 3.6
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.4
Embodied Energy, MJ/kg 33
18
Embodied Water, L/kg 56
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
64 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 570
180 to 560
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
15 to 22
Strength to Weight: Bending, points 22
16 to 20
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 19
14 to 20

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.13
Chromium (Cr), % 1.0 to 1.5
0
Iron (Fe), % 95.2 to 97.2
98.5 to 99.07
Manganese (Mn), % 0.5 to 0.9
0.7 to 1.0
Molybdenum (Mo), % 0.9 to 1.2
0
Phosphorus (P), % 0 to 0.035
0.070 to 0.12
Silicon (Si), % 0.2 to 0.6
0
Sulfur (S), % 0 to 0.030
0.16 to 0.23
Vanadium (V), % 0.2 to 0.35
0