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EN 1.8509 Steel vs. EN 1.4852 Stainless Steel

Both EN 1.8509 steel and EN 1.4852 stainless steel are iron alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. 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 1.4852 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
4.6
Fatigue Strength, MPa 580
120
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 1130
490
Tensile Strength: Yield (Proof), MPa 940
250

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 440
1100
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1410
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 39
13
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
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
41
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
6.9
Embodied Energy, MJ/kg 22
100
Embodied Water, L/kg 65
220

Common Calculations

PREN (Pitting Resistance) 2.6
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
19
Resilience: Unit (Modulus of Resilience), kJ/m3 2340
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 40
17
Strength to Weight: Bending, points 31
18
Thermal Diffusivity, mm2/s 10
3.4
Thermal Shock Resistance, points 33
11

Alloy Composition

Aluminum (Al), % 0.8 to 1.2
0
Carbon (C), % 0.38 to 0.45
0.3 to 0.5
Chromium (Cr), % 1.5 to 1.8
24 to 27
Iron (Fe), % 95.5 to 97.1
29.6 to 40.9
Manganese (Mn), % 0.4 to 0.7
0 to 2.0
Molybdenum (Mo), % 0.2 to 0.35
0 to 0.5
Nickel (Ni), % 0
33 to 36
Niobium (Nb), % 0
0.8 to 1.8
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
1.0 to 2.5
Sulfur (S), % 0 to 0.035
0 to 0.030