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AISI 409 Stainless Steel vs. EN 1.4935 Stainless Steel

Both AISI 409 stainless steel and EN 1.4935 stainless steel are iron alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is AISI 409 stainless steel and the bottom bar is EN 1.4935 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 24
16 to 18
Fatigue Strength, MPa 140
350 to 400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 270
480 to 540
Tensile Strength: Ultimate (UTS), MPa 420
780 to 880
Tensile Strength: Yield (Proof), MPa 200
570 to 670

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 450
380
Maximum Temperature: Mechanical, °C 710
740
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
24
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
9.0
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
2.9
Embodied Energy, MJ/kg 28
42
Embodied Water, L/kg 94
100

Common Calculations

PREN (Pitting Resistance) 11
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
130
Resilience: Unit (Modulus of Resilience), kJ/m3 100
830 to 1160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 15
28 to 31
Strength to Weight: Bending, points 16
24 to 26
Thermal Diffusivity, mm2/s 6.7
6.5
Thermal Shock Resistance, points 15
27 to 30

Alloy Composition

Carbon (C), % 0 to 0.080
0.17 to 0.24
Chromium (Cr), % 10.5 to 11.7
11 to 12.5
Iron (Fe), % 84.9 to 89.5
83 to 86.7
Manganese (Mn), % 0 to 1.0
0.3 to 0.8
Molybdenum (Mo), % 0
0.8 to 1.2
Nickel (Ni), % 0 to 0.5
0.3 to 0.8
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0.1 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0 to 0.75
0
Tungsten (W), % 0
0.4 to 0.6
Vanadium (V), % 0
0.2 to 0.35