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EN 1.7386 Steel vs. S39274 Stainless Steel

Both EN 1.7386 steel and S39274 stainless steel are iron alloys. They have 72% 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 1.7386 steel and the bottom bar is S39274 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 200
270
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 18 to 21
17
Fatigue Strength, MPa 170 to 290
380
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
81
Shear Strength, MPa 340 to 410
560
Tensile Strength: Ultimate (UTS), MPa 550 to 670
900
Tensile Strength: Yield (Proof), MPa 240 to 440
620

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Mechanical, °C 600
1100
Melting Completion (Liquidus), °C 1450
1480
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 26
16
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.0
4.3
Embodied Energy, MJ/kg 28
60
Embodied Water, L/kg 88
180

Common Calculations

PREN (Pitting Resistance) 12
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92 to 110
140
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 490
940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20 to 24
32
Strength to Weight: Bending, points 19 to 22
26
Thermal Diffusivity, mm2/s 6.9
4.2
Thermal Shock Resistance, points 15 to 18
25

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.080 to 0.15
0 to 0.030
Chromium (Cr), % 8.0 to 10
24 to 26
Copper (Cu), % 0 to 0.3
0.2 to 0.8
Iron (Fe), % 86.8 to 90.5
57 to 65.6
Manganese (Mn), % 0.3 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.1
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), % 0.25 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5