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EN 1.3956 Stainless Steel vs. EN 1.4584 Stainless Steel

Both EN 1.3956 stainless steel and EN 1.4584 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 83% 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 1.3956 stainless steel and the bottom bar is EN 1.4584 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 27
34
Fatigue Strength, MPa 240
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 650
500
Tensile Strength: Yield (Proof), MPa 330
210

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 460
420
Maximum Temperature: Mechanical, °C 1080
1100
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 22
31
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 4.8
5.7
Embodied Energy, MJ/kg 68
78
Embodied Water, L/kg 180
200

Common Calculations

PREN (Pitting Resistance) 34
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
140
Resilience: Unit (Modulus of Resilience), kJ/m3 270
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 23
17
Strength to Weight: Bending, points 21
17
Thermal Shock Resistance, points 18
12

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.025
Chromium (Cr), % 20.5 to 23.5
19 to 21
Copper (Cu), % 0
1.0 to 3.0
Iron (Fe), % 51.9 to 62.1
41.7 to 52
Manganese (Mn), % 4.0 to 6.0
0 to 2.0
Molybdenum (Mo), % 1.5 to 3.0
4.0 to 5.0
Nickel (Ni), % 11.5 to 13.5
24 to 26
Niobium (Nb), % 0.1 to 0.3
0
Nitrogen (N), % 0.2 to 0.4
0 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Vanadium (V), % 0.1 to 0.3
0