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EN 1.3975 Stainless Steel vs. EN 1.4418 Stainless Steel

Both EN 1.3975 stainless steel and EN 1.4418 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 1.3975 stainless steel and the bottom bar is EN 1.4418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 27
16 to 20
Fatigue Strength, MPa 230
350 to 480
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 660
860 to 1000
Tensile Strength: Yield (Proof), MPa 320
540 to 790

Thermal Properties

Latent Heat of Fusion, J/g 340
280
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 910
870
Melting Completion (Liquidus), °C 1360
1450
Melting Onset (Solidus), °C 1320
1400
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 16
10

Otherwise Unclassified Properties

Base Metal Price, % relative 15
13
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.3
2.8
Embodied Energy, MJ/kg 47
39
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 21
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
130 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 270
730 to 1590
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 24
31 to 36
Strength to Weight: Bending, points 22
26 to 28
Thermal Shock Resistance, points 15
31 to 36

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.060
Chromium (Cr), % 16 to 18
15 to 17
Iron (Fe), % 58.2 to 65.4
73.2 to 80.2
Manganese (Mn), % 7.0 to 9.0
0 to 1.5
Molybdenum (Mo), % 0 to 1.0
0.8 to 1.5
Nickel (Ni), % 8.0 to 9.0
4.0 to 6.0
Nitrogen (N), % 0.080 to 0.18
0 to 0.020
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 3.5 to 4.5
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.015