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EN 1.4309 Stainless Steel vs. EN 1.8523 Steel

Both EN 1.4309 stainless steel and EN 1.8523 steel are iron alloys. They have 73% of their average alloy composition in common. There are 32 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 1.4309 stainless steel and the bottom bar is EN 1.8523 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
300
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
15
Fatigue Strength, MPa 170
530
Impact Strength: V-Notched Charpy, J 90
36
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 490
1000
Tensile Strength: Yield (Proof), MPa 210
800

Thermal Properties

Latent Heat of Fusion, J/g 290
260
Maximum Temperature: Mechanical, °C 960
480
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 16
4.2
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.1
2.2
Embodied Energy, MJ/kg 45
31
Embodied Water, L/kg 150
64

Common Calculations

PREN (Pitting Resistance) 21
6.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
140
Resilience: Unit (Modulus of Resilience), kJ/m3 110
1700
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
36
Strength to Weight: Bending, points 18
28
Thermal Diffusivity, mm2/s 4.1
10
Thermal Shock Resistance, points 11
29

Alloy Composition

Carbon (C), % 0 to 0.030
0.35 to 0.45
Chromium (Cr), % 18 to 20
3.0 to 3.5
Iron (Fe), % 64.2 to 73
93.5 to 95.7
Manganese (Mn), % 0 to 2.0
0.4 to 0.7
Molybdenum (Mo), % 0
0.8 to 1.1
Nickel (Ni), % 9.0 to 12
0
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.5
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.035
Vanadium (V), % 0
0.15 to 0.25