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EN 1.7366 Steel vs. S39274 Stainless Steel

Both EN 1.7366 steel and S39274 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.7366 steel and the bottom bar is S39274 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140 to 210
270
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 17 to 19
17
Fatigue Strength, MPa 160 to 320
380
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
81
Shear Strength, MPa 290 to 440
560
Tensile Strength: Ultimate (UTS), MPa 460 to 710
900
Tensile Strength: Yield (Proof), MPa 230 to 480
620

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Maximum Temperature: Mechanical, °C 510
1100
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.7
4.3
Embodied Energy, MJ/kg 23
60
Embodied Water, L/kg 69
180

Common Calculations

PREN (Pitting Resistance) 6.8
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 110
140
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 600
940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 16 to 25
32
Strength to Weight: Bending, points 17 to 23
26
Thermal Diffusivity, mm2/s 11
4.2
Thermal Shock Resistance, points 13 to 20
25

Alloy Composition

Carbon (C), % 0 to 0.18
0 to 0.030
Chromium (Cr), % 4.0 to 6.0
24 to 26
Copper (Cu), % 0
0.2 to 0.8
Iron (Fe), % 91.9 to 95.3
57 to 65.6
Manganese (Mn), % 0.3 to 0.8
0 to 1.0
Molybdenum (Mo), % 0.45 to 0.65
2.5 to 3.5
Nickel (Ni), % 0
6.0 to 8.0
Nitrogen (N), % 0
0.24 to 0.32
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5