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EN 1.4311 Stainless Steel vs. EN 1.3975 Stainless Steel

Both EN 1.4311 stainless steel and EN 1.3975 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 89% 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 1.4311 stainless steel and the bottom bar is EN 1.3975 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 43
27
Fatigue Strength, MPa 270
230
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 650
660
Tensile Strength: Yield (Proof), MPa 310
320

Thermal Properties

Latent Heat of Fusion, J/g 290
340
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 950
910
Melting Completion (Liquidus), °C 1420
1360
Melting Onset (Solidus), °C 1380
1320
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 16
15
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 3.1
3.3
Embodied Energy, MJ/kg 43
47
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 21
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
150
Resilience: Unit (Modulus of Resilience), kJ/m3 240
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 23
24
Strength to Weight: Bending, points 21
22
Thermal Shock Resistance, points 15
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 17.5 to 19.5
16 to 18
Iron (Fe), % 65.7 to 73.9
58.2 to 65.4
Manganese (Mn), % 0 to 2.0
7.0 to 9.0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 8.5 to 11.5
8.0 to 9.0
Nitrogen (N), % 0.12 to 0.22
0.080 to 0.18
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
3.5 to 4.5
Sulfur (S), % 0 to 0.015
0 to 0.030