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EN 1.8509 Steel vs. EN 1.4458 Stainless Steel

Both EN 1.8509 steel and EN 1.4458 stainless steel are iron alloys. They have 49% 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 1.8509 steel and the bottom bar is EN 1.4458 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
150
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
34
Fatigue Strength, MPa 580
150
Impact Strength: V-Notched Charpy, J 29
67
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 1130
510
Tensile Strength: Yield (Proof), MPa 940
190

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1370
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 39
16
Thermal Expansion, µm/m-K 13
15

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
30
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.6
5.4
Embodied Energy, MJ/kg 22
75
Embodied Water, L/kg 65
200

Common Calculations

PREN (Pitting Resistance) 2.6
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
140
Resilience: Unit (Modulus of Resilience), kJ/m3 2340
89
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 40
17
Strength to Weight: Bending, points 31
18
Thermal Diffusivity, mm2/s 10
4.2
Thermal Shock Resistance, points 33
12

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.38 to 0.45
0 to 0.030
Chromium (Cr), % 1.5 to 1.8
19 to 22
Copper (Cu), % 0
0 to 2.0
Iron (Fe), % 95.5 to 97.1
40.2 to 53
Manganese (Mn), % 0.4 to 0.7
0 to 2.0
Molybdenum (Mo), % 0.2 to 0.35
2.0 to 2.5
Nickel (Ni), % 0
26 to 30
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.025