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EN 1.4872 Stainless Steel vs. EN 1.3956 Stainless Steel

Both EN 1.4872 stainless steel and EN 1.3956 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have a moderately high 92% 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 1.4872 stainless steel and the bottom bar is EN 1.3956 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
27
Fatigue Strength, MPa 410
240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 950
650
Tensile Strength: Yield (Proof), MPa 560
330

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 440
460
Maximum Temperature: Mechanical, °C 1150
1080
Melting Completion (Liquidus), °C 1390
1420
Melting Onset (Solidus), °C 1340
1380
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 17
22
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 3.3
4.8
Embodied Energy, MJ/kg 47
68
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 30
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
150
Resilience: Unit (Modulus of Resilience), kJ/m3 780
270
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 35
23
Strength to Weight: Bending, points 28
21
Thermal Shock Resistance, points 21
18

Alloy Composition

Carbon (C), % 0.2 to 0.3
0 to 0.060
Chromium (Cr), % 24 to 26
20.5 to 23.5
Iron (Fe), % 54.2 to 61.6
51.9 to 62.1
Manganese (Mn), % 8.0 to 10
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 6.0 to 8.0
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0.2 to 0.4
0.2 to 0.4
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0
0.1 to 0.3