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EN 1.4864 Stainless Steel vs. EN 1.3956 Stainless Steel

Both EN 1.4864 stainless steel and EN 1.3956 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 76% of their average alloy composition in common. There are 27 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 1.4864 stainless steel and the bottom bar is EN 1.3956 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 33
27
Fatigue Strength, MPa 200
240
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
79
Tensile Strength: Ultimate (UTS), MPa 650
650
Tensile Strength: Yield (Proof), MPa 260
330

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 410
460
Maximum Temperature: Mechanical, °C 1100
1080
Melting Completion (Liquidus), °C 1390
1420
Melting Onset (Solidus), °C 1340
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 14
13

Otherwise Unclassified Properties

Base Metal Price, % relative 30
22
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.3
4.8
Embodied Energy, MJ/kg 75
68
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 17
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
150
Resilience: Unit (Modulus of Resilience), kJ/m3 170
270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23
23
Strength to Weight: Bending, points 21
21
Thermal Shock Resistance, points 17
18

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.060
Chromium (Cr), % 15 to 17
20.5 to 23.5
Iron (Fe), % 41.7 to 51
51.9 to 62.1
Manganese (Mn), % 0 to 2.0
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 33 to 37
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0 to 0.1
0.2 to 0.4
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 1.0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0
0.1 to 0.3