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S39274 Stainless Steel vs. EN 1.4404 Stainless Steel

Both S39274 stainless steel and EN 1.4404 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 (3, in this case) are not shown.

For each property being compared, the top bar is S39274 stainless steel and the bottom bar is EN 1.4404 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 17
14 to 43
Fatigue Strength, MPa 380
220 to 320
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
78
Shear Strength, MPa 560
420 to 550
Tensile Strength: Ultimate (UTS), MPa 900
600 to 900
Tensile Strength: Yield (Proof), MPa 620
240 to 570

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1100
950
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1430
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 2.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 24
19
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 4.3
3.8
Embodied Energy, MJ/kg 60
52
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 43
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
110 to 210
Resilience: Unit (Modulus of Resilience), kJ/m3 940
140 to 800
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32
21 to 32
Strength to Weight: Bending, points 26
20 to 26
Thermal Diffusivity, mm2/s 4.2
4.0
Thermal Shock Resistance, points 25
13 to 20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 24 to 26
16.5 to 18.5
Copper (Cu), % 0.2 to 0.8
0
Iron (Fe), % 57 to 65.6
62.8 to 71.5
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 2.5 to 3.5
2.0 to 2.5
Nickel (Ni), % 6.0 to 8.0
10 to 13
Nitrogen (N), % 0.24 to 0.32
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015
Tungsten (W), % 1.5 to 2.5
0