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EN 1.4378 Stainless Steel vs. EN 1.4417 Stainless Steel

Both EN 1.4378 stainless steel and EN 1.4417 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 1.4417 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 34
25
Fatigue Strength, MPa 340 to 550
380
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 760 to 1130
730
Tensile Strength: Yield (Proof), MPa 430 to 970
550

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 910
1100
Melting Completion (Liquidus), °C 1390
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 12
21
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 2.7
4.1
Embodied Energy, MJ/kg 39
57
Embodied Water, L/kg 150
180

Common Calculations

PREN (Pitting Resistance) 23
41
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 220
170
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 2370
730
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 41
26
Strength to Weight: Bending, points 24 to 31
23
Thermal Shock Resistance, points 16 to 23
20

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 17 to 19
24 to 26
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 61.2 to 69
56.7 to 66.9
Manganese (Mn), % 11.5 to 14.5
0 to 1.5
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 2.3 to 3.7
6.0 to 8.5
Nitrogen (N), % 0.2 to 0.4
0.15 to 0.25
Phosphorus (P), % 0 to 0.060
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 0
0 to 1.0