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S44627 Stainless Steel vs. S39277 Stainless Steel

Both S44627 stainless steel and S39277 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 87% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S44627 stainless steel and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 24
28
Fatigue Strength, MPa 200
480
Poisson's Ratio 0.27
0.27
Reduction in Area, % 51
57
Shear Modulus, GPa 80
80
Shear Strength, MPa 310
600
Tensile Strength: Ultimate (UTS), MPa 490
930
Tensile Strength: Yield (Proof), MPa 300
660

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 470
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
16
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 14
23
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.9
4.2
Embodied Energy, MJ/kg 41
59
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 30
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
240
Resilience: Unit (Modulus of Resilience), kJ/m3 220
1070
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
33
Strength to Weight: Bending, points 18
27
Thermal Diffusivity, mm2/s 4.6
4.2
Thermal Shock Resistance, points 16
26

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.025
Chromium (Cr), % 25 to 27.5
24 to 26
Copper (Cu), % 0 to 0.2
1.2 to 2.0
Iron (Fe), % 69.2 to 74.2
56.8 to 64.3
Manganese (Mn), % 0 to 0.4
0 to 0.8
Molybdenum (Mo), % 0.75 to 1.5
3.0 to 4.0
Nickel (Ni), % 0 to 0.5
6.5 to 8.0
Niobium (Nb), % 0.050 to 0.2
0
Nitrogen (N), % 0 to 0.015
0.23 to 0.33
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.8
Sulfur (S), % 0 to 0.020
0 to 0.0020
Tungsten (W), % 0
0.8 to 1.2