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S44626 Stainless Steel vs. AISI 312 Stainless Steel

Both S44626 stainless steel and AISI 312 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 93% of their average alloy composition in common. There are 33 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 S44626 stainless steel and the bottom bar is AISI 312 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
28
Fatigue Strength, MPa 230
370
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 80
80
Shear Strength, MPa 340
510
Tensile Strength: Ultimate (UTS), MPa 540
780
Tensile Strength: Yield (Proof), MPa 350
510

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 560
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
17
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.9
3.4
Embodied Energy, MJ/kg 42
48
Embodied Water, L/kg 160
170

Common Calculations

PREN (Pitting Resistance) 30
33
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
190
Resilience: Unit (Modulus of Resilience), kJ/m3 300
640
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 19
28
Strength to Weight: Bending, points 19
24
Thermal Diffusivity, mm2/s 4.6
4.3
Thermal Shock Resistance, points 18
21

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.030
Chromium (Cr), % 25 to 27
24 to 26
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 68.1 to 74.1
62.2 to 69.2
Manganese (Mn), % 0 to 0.75
0 to 2.0
Molybdenum (Mo), % 0.75 to 1.5
1.2 to 2.0
Nickel (Ni), % 0 to 0.5
5.5 to 6.5
Nitrogen (N), % 0 to 0.040
0.14 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0.2 to 1.0
0