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EN 1.4109 Stainless Steel vs. EN 1.4841 Stainless Steel

Both EN 1.4109 stainless steel and EN 1.4841 stainless steel are iron alloys. They have 67% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4109 stainless steel and the bottom bar is EN 1.4841 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 19
32
Fatigue Strength, MPa 270
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Shear Strength, MPa 480
430
Tensile Strength: Ultimate (UTS), MPa 770
650
Tensile Strength: Yield (Proof), MPa 420
260

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Corrosion, °C 390
440
Maximum Temperature: Mechanical, °C 820
1150
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1400
1340
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
25
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
4.3
Embodied Energy, MJ/kg 30
62
Embodied Water, L/kg 110
190

Common Calculations

PREN (Pitting Resistance) 17
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
170
Resilience: Unit (Modulus of Resilience), kJ/m3 460
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
23
Strength to Weight: Bending, points 24
21
Thermal Diffusivity, mm2/s 8.1
4.0
Thermal Shock Resistance, points 28
15

Alloy Composition

Carbon (C), % 0.6 to 0.75
0 to 0.2
Chromium (Cr), % 14 to 16
24 to 26
Iron (Fe), % 80.7 to 85
47.1 to 55.5
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.4 to 0.8
0
Nickel (Ni), % 0
19 to 22
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.7
1.5 to 2.5
Sulfur (S), % 0 to 0.015
0 to 0.015