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EN 1.4378 Stainless Steel vs. EN 1.7386 Steel

Both EN 1.4378 stainless steel and EN 1.7386 steel are iron alloys. They have 75% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4378 stainless steel and the bottom bar is EN 1.7386 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
170 to 200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 34
18 to 21
Fatigue Strength, MPa 340 to 550
170 to 290
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Shear Strength, MPa 510 to 680
340 to 410
Tensile Strength: Ultimate (UTS), MPa 760 to 1130
550 to 670
Tensile Strength: Yield (Proof), MPa 430 to 970
240 to 440

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Mechanical, °C 910
600
Melting Completion (Liquidus), °C 1390
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 12
6.5
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.0
Embodied Energy, MJ/kg 39
28
Embodied Water, L/kg 150
88

Common Calculations

PREN (Pitting Resistance) 23
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 220
92 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 2370
150 to 490
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 41
20 to 24
Strength to Weight: Bending, points 24 to 31
19 to 22
Thermal Shock Resistance, points 16 to 23
15 to 18

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.080
0.080 to 0.15
Chromium (Cr), % 17 to 19
8.0 to 10
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 61.2 to 69
86.8 to 90.5
Manganese (Mn), % 11.5 to 14.5
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 2.3 to 3.7
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.060
0 to 0.025
Silicon (Si), % 0 to 1.0
0.25 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010