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EN 1.7233 Steel vs. AISI 409 Stainless Steel

Both EN 1.7233 steel and AISI 409 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 31 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 1.7233 steel and the bottom bar is AISI 409 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 23
24
Fatigue Strength, MPa 270 to 530
140
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 450 to 590
270
Tensile Strength: Ultimate (UTS), MPa 700 to 960
420
Tensile Strength: Yield (Proof), MPa 380 to 780
200

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 430
710
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
25
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.0
6.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.6
2.0
Embodied Energy, MJ/kg 21
28
Embodied Water, L/kg 53
94

Common Calculations

PREN (Pitting Resistance) 3.3
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 200
83
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 1630
100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 34
15
Strength to Weight: Bending, points 22 to 28
16
Thermal Diffusivity, mm2/s 11
6.7
Thermal Shock Resistance, points 21 to 28
15

Alloy Composition

Carbon (C), % 0.39 to 0.45
0 to 0.080
Chromium (Cr), % 1.2 to 1.5
10.5 to 11.7
Iron (Fe), % 96.2 to 97.5
84.9 to 89.5
Manganese (Mn), % 0.4 to 0.7
0 to 1.0
Molybdenum (Mo), % 0.5 to 0.7
0
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.030
Titanium (Ti), % 0
0 to 0.75