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SAE-AISI 1212 Steel vs. S30815 Stainless Steel

Both SAE-AISI 1212 steel and S30815 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1212 steel and the bottom bar is S30815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 180
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 28
45
Fatigue Strength, MPa 200 to 290
320
Poisson's Ratio 0.29
0.28
Reduction in Area, % 39 to 51
56
Shear Modulus, GPa 73
77
Shear Strength, MPa 280 to 370
480
Tensile Strength: Ultimate (UTS), MPa 440 to 620
680
Tensile Strength: Yield (Proof), MPa 260 to 460
350

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1020
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.3
Embodied Energy, MJ/kg 18
47
Embodied Water, L/kg 46
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64 to 110
260
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 560
310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15 to 22
25
Strength to Weight: Bending, points 16 to 20
22
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 14 to 20
15

Alloy Composition

Carbon (C), % 0 to 0.13
0.050 to 0.1
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0
20 to 22
Iron (Fe), % 98.5 to 99.07
62.8 to 68.4
Manganese (Mn), % 0.7 to 1.0
0 to 0.8
Nickel (Ni), % 0
10 to 12
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0.070 to 0.12
0 to 0.040
Silicon (Si), % 0
1.4 to 2.0
Sulfur (S), % 0.16 to 0.23
0 to 0.030