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EN 1.8509 Steel vs. EN 1.4002 Stainless Steel

Both EN 1.8509 steel and EN 1.4002 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 1.4002 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
19
Fatigue Strength, MPa 580
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 680
310
Tensile Strength: Ultimate (UTS), MPa 1130
500
Tensile Strength: Yield (Proof), MPa 940
260

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 440
760
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 39
30
Thermal Expansion, µm/m-K 13
10

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.6
1.9
Embodied Energy, MJ/kg 22
27
Embodied Water, L/kg 65
100

Common Calculations

PREN (Pitting Resistance) 2.6
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
80
Resilience: Unit (Modulus of Resilience), kJ/m3 2340
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 40
18
Strength to Weight: Bending, points 31
18
Thermal Diffusivity, mm2/s 10
8.1
Thermal Shock Resistance, points 33
18

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0.1 to 0.3
Carbon (C), % 0.38 to 0.45
0 to 0.080
Chromium (Cr), % 1.5 to 1.8
12 to 14
Iron (Fe), % 95.5 to 97.1
83.6 to 87.9
Manganese (Mn), % 0.4 to 0.7
0 to 1.0
Molybdenum (Mo), % 0.2 to 0.35
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.015