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EN 1.4841 Stainless Steel vs. EN 1.4550 Stainless Steel

Both EN 1.4841 stainless steel and EN 1.4550 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 33 material properties with values for both materials. Properties with values for just one material (1, 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 1.4550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 32
42
Fatigue Strength, MPa 200
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Shear Strength, MPa 430
430
Tensile Strength: Ultimate (UTS), MPa 650
620
Tensile Strength: Yield (Proof), MPa 260
230

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Corrosion, °C 440
480
Maximum Temperature: Mechanical, °C 1150
940
Melting Completion (Liquidus), °C 1380
1430
Melting Onset (Solidus), °C 1340
1390
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
16

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
18
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.3
3.6
Embodied Energy, MJ/kg 62
51
Embodied Water, L/kg 190
140

Common Calculations

PREN (Pitting Resistance) 26
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
210
Resilience: Unit (Modulus of Resilience), kJ/m3 170
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
22
Strength to Weight: Bending, points 21
21
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 15
14

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.080
Chromium (Cr), % 24 to 26
17 to 19
Iron (Fe), % 47.1 to 55.5
64.9 to 74
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 19 to 22
9.0 to 12
Niobium (Nb), % 0
0 to 1.0
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 0.015