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EN 1.3956 Stainless Steel vs. EN 1.4552 Stainless Steel

Both EN 1.3956 stainless steel and EN 1.4552 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 88% 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 1.4552 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 27
29
Fatigue Strength, MPa 240
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Tensile Strength: Ultimate (UTS), MPa 650
510
Tensile Strength: Yield (Proof), MPa 330
200

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 460
490
Maximum Temperature: Mechanical, °C 1080
960
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 22
19
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.8
3.6
Embodied Energy, MJ/kg 68
52
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 34
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
120
Resilience: Unit (Modulus of Resilience), kJ/m3 270
100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
18
Strength to Weight: Bending, points 21
18
Thermal Shock Resistance, points 18
11

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.070
Chromium (Cr), % 20.5 to 23.5
18 to 20
Iron (Fe), % 51.9 to 62.1
63.9 to 73
Manganese (Mn), % 4.0 to 6.0
0 to 1.5
Molybdenum (Mo), % 1.5 to 3.0
0
Nickel (Ni), % 11.5 to 13.5
9.0 to 12
Niobium (Nb), % 0.1 to 0.3
0 to 1.0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.1 to 0.3
0