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EN 1.4841 Stainless Steel vs. EN 1.3955 Stainless Steel

Both EN 1.4841 stainless steel and EN 1.3955 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 81% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 1.3955 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 32
23
Fatigue Strength, MPa 200
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 650
520
Tensile Strength: Yield (Proof), MPa 260
220

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1150
930
Melting Completion (Liquidus), °C 1380
1430
Melting Onset (Solidus), °C 1340
1380
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 25
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.3
3.2
Embodied Energy, MJ/kg 62
45
Embodied Water, L/kg 190
140

Common Calculations

PREN (Pitting Resistance) 26
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
95
Resilience: Unit (Modulus of Resilience), kJ/m3 170
130
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 Diffusivity, mm2/s 4.0
4.1
Thermal Shock Resistance, points 15
15

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.15
Chromium (Cr), % 24 to 26
16.5 to 18.5
Iron (Fe), % 47.1 to 55.5
65.5 to 73.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 19 to 22
10 to 12
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 1.5 to 2.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030