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AISI 439 Stainless Steel vs. SAE-AISI 1212 Steel

Both AISI 439 stainless steel and SAE-AISI 1212 steel are iron alloys. They have 81% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 439 stainless steel and the bottom bar is SAE-AISI 1212 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
140 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
11 to 28
Fatigue Strength, MPa 170
200 to 290
Poisson's Ratio 0.28
0.29
Reduction in Area, % 51
39 to 51
Shear Modulus, GPa 77
73
Shear Strength, MPa 310
280 to 370
Tensile Strength: Ultimate (UTS), MPa 490
440 to 620
Tensile Strength: Yield (Proof), MPa 250
260 to 460

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 890
400
Melting Completion (Liquidus), °C 1510
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
52
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.3
1.4
Embodied Energy, MJ/kg 34
18
Embodied Water, L/kg 120
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
64 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 160
180 to 560
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
15 to 22
Strength to Weight: Bending, points 18
16 to 20
Thermal Diffusivity, mm2/s 6.7
14
Thermal Shock Resistance, points 16
14 to 20

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Carbon (C), % 0 to 0.030
0 to 0.13
Chromium (Cr), % 17 to 19
0
Iron (Fe), % 77.1 to 82.8
98.5 to 99.07
Manganese (Mn), % 0 to 1.0
0.7 to 1.0
Nickel (Ni), % 0 to 0.5
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0.070 to 0.12
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0.16 to 0.23
Titanium (Ti), % 0.2 to 1.1
0