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SAE-AISI 1117 Steel vs. SAE-AISI 1212 Steel

Both SAE-AISI 1117 steel and SAE-AISI 1212 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is SAE-AISI 1117 steel and the bottom bar is SAE-AISI 1212 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 150
140 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 26
11 to 28
Fatigue Strength, MPa 190 to 300
200 to 290
Poisson's Ratio 0.29
0.29
Reduction in Area, % 46 to 53
39 to 51
Shear Modulus, GPa 73
73
Shear Strength, MPa 320 to 330
280 to 370
Tensile Strength: Ultimate (UTS), MPa 490 to 540
440 to 620
Tensile Strength: Yield (Proof), MPa 260 to 460
260 to 460

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
18
Embodied Water, L/kg 47
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 110
64 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 550
180 to 560
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17 to 19
15 to 22
Strength to Weight: Bending, points 18 to 19
16 to 20
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 15 to 17
14 to 20

Alloy Composition

Carbon (C), % 0.14 to 0.2
0 to 0.13
Iron (Fe), % 98.3 to 98.8
98.5 to 99.07
Manganese (Mn), % 1.0 to 1.3
0.7 to 1.0
Phosphorus (P), % 0 to 0.040
0.070 to 0.12
Sulfur (S), % 0.080 to 0.13
0.16 to 0.23

Comparable Variants