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EN 1.4841 Stainless Steel vs. EN 1.3956 Stainless Steel

Both EN 1.4841 stainless steel and EN 1.3956 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 87% 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 1.4841 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, % 32
27
Fatigue Strength, MPa 200
240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
79
Tensile Strength: Ultimate (UTS), MPa 650
650
Tensile Strength: Yield (Proof), MPa 260
330

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Corrosion, °C 440
460
Maximum Temperature: Mechanical, °C 1150
1080
Melting Completion (Liquidus), °C 1380
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 25
22
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.3
4.8
Embodied Energy, MJ/kg 62
68
Embodied Water, L/kg 190
180

Common Calculations

PREN (Pitting Resistance) 26
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
150
Resilience: Unit (Modulus of Resilience), kJ/m3 170
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
23
Strength to Weight: Bending, points 21
21
Thermal Shock Resistance, points 15
18

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.060
Chromium (Cr), % 24 to 26
20.5 to 23.5
Iron (Fe), % 47.1 to 55.5
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), % 19 to 22
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), % 1.5 to 2.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0
0.1 to 0.3