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S39277 Stainless Steel vs. EN 1.4449 Stainless Steel

Both S39277 stainless steel and EN 1.4449 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S39277 stainless steel and the bottom bar is EN 1.4449 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
48
Fatigue Strength, MPa 480
240
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
78
Shear Strength, MPa 600
440
Tensile Strength: Ultimate (UTS), MPa 930
620
Tensile Strength: Yield (Proof), MPa 660
250

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 23
19
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.2
3.9
Embodied Energy, MJ/kg 59
54
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 43
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
240
Resilience: Unit (Modulus of Resilience), kJ/m3 1070
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 33
22
Strength to Weight: Bending, points 27
20
Thermal Diffusivity, mm2/s 4.2
4.0
Thermal Shock Resistance, points 26
14

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.035
Chromium (Cr), % 24 to 26
17 to 18.2
Copper (Cu), % 1.2 to 2.0
0 to 1.0
Iron (Fe), % 56.8 to 64.3
62.4 to 69.3
Manganese (Mn), % 0 to 0.8
0 to 2.0
Molybdenum (Mo), % 3.0 to 4.0
2.3 to 2.8
Nickel (Ni), % 6.5 to 8.0
11.5 to 12.5
Nitrogen (N), % 0.23 to 0.33
0 to 0.080
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.0020
0 to 0.015
Tungsten (W), % 0.8 to 1.2
0