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EN 1.8509 Steel vs. EN 1.4659 Stainless Steel

Both EN 1.8509 steel and EN 1.4659 stainless steel are iron alloys. They have 43% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.8509 steel and the bottom bar is EN 1.4659 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
260
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 11
49
Fatigue Strength, MPa 580
460
Impact Strength: V-Notched Charpy, J 29
94
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
81
Shear Strength, MPa 680
640
Tensile Strength: Ultimate (UTS), MPa 1130
900
Tensile Strength: Yield (Proof), MPa 940
480

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1450
1480
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 39
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
37
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.6
6.5
Embodied Energy, MJ/kg 22
89
Embodied Water, L/kg 65
220

Common Calculations

PREN (Pitting Resistance) 2.6
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
370
Resilience: Unit (Modulus of Resilience), kJ/m3 2340
550
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 40
31
Strength to Weight: Bending, points 31
25
Thermal Diffusivity, mm2/s 10
3.2
Thermal Shock Resistance, points 33
19

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.38 to 0.45
0 to 0.020
Chromium (Cr), % 1.5 to 1.8
23 to 25
Copper (Cu), % 0
1.0 to 2.0
Iron (Fe), % 95.5 to 97.1
35.7 to 45.7
Manganese (Mn), % 0.4 to 0.7
2.0 to 4.0
Molybdenum (Mo), % 0.2 to 0.35
5.5 to 6.5
Nickel (Ni), % 0
21 to 23
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.7
Sulfur (S), % 0 to 0.035
0 to 0.010
Tungsten (W), % 0
1.5 to 2.5