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EN 1.4841 Stainless Steel vs. AISI 309S Stainless Steel

Both EN 1.4841 stainless steel and AISI 309S stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, 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 AISI 309S stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 32
42
Fatigue Strength, MPa 200
210
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
78
Shear Strength, MPa 430
400
Tensile Strength: Ultimate (UTS), MPa 650
580
Tensile Strength: Yield (Proof), MPa 260
230

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Corrosion, °C 440
440
Maximum Temperature: Mechanical, °C 1150
1080
Melting Completion (Liquidus), °C 1380
1420
Melting Onset (Solidus), °C 1340
1370
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
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 25
19
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
170

Common Calculations

PREN (Pitting Resistance) 26
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
190
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
21
Strength to Weight: Bending, points 21
20
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 15
13

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.080
Chromium (Cr), % 24 to 26
22 to 24
Iron (Fe), % 47.1 to 55.5
58.1 to 66
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 19 to 22
12 to 15
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 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030