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AISI 409 Stainless Steel vs. EN 1.7710 Steel

Both AISI 409 stainless steel and EN 1.7710 steel are iron alloys. They have 90% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is AISI 409 stainless steel and the bottom bar is EN 1.7710 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 24
6.8 to 11
Fatigue Strength, MPa 140
500 to 620
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 420
930 to 1070
Tensile Strength: Yield (Proof), MPa 200
800 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Maximum Temperature: Mechanical, °C 710
440
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 25
41
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
3.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
2.2
Embodied Energy, MJ/kg 28
30
Embodied Water, L/kg 94
57

Common Calculations

PREN (Pitting Resistance) 11
4.5
Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
73 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 100
1680 to 2970
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 15
33 to 38
Strength to Weight: Bending, points 16
27 to 30
Thermal Diffusivity, mm2/s 6.7
11
Thermal Shock Resistance, points 15
27 to 31

Alloy Composition

Carbon (C), % 0 to 0.080
0.12 to 0.18
Chromium (Cr), % 10.5 to 11.7
1.3 to 1.8
Iron (Fe), % 84.9 to 89.5
95.1 to 97
Manganese (Mn), % 0 to 1.0
0.6 to 1.0
Molybdenum (Mo), % 0
0.8 to 1.0
Nickel (Ni), % 0 to 0.5
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.75
0
Vanadium (V), % 0
0.15 to 0.25