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EN 1.4872 Stainless Steel vs. EN 1.4509 Stainless Steel

Both EN 1.4872 stainless steel and EN 1.4509 stainless steel are iron alloys. They have 77% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4872 stainless steel and the bottom bar is EN 1.4509 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
21
Fatigue Strength, MPa 410
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 620
330
Tensile Strength: Ultimate (UTS), MPa 950
530
Tensile Strength: Yield (Proof), MPa 560
260

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 440
570
Maximum Temperature: Mechanical, °C 1150
890
Melting Completion (Liquidus), °C 1390
1440
Melting Onset (Solidus), °C 1340
1400
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 17
13
Density, g/cm3 7.6
7.7
Embodied Carbon, kg CO2/kg material 3.3
2.8
Embodied Energy, MJ/kg 47
41
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 30
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
90
Resilience: Unit (Modulus of Resilience), kJ/m3 780
180
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 35
19
Strength to Weight: Bending, points 28
19
Thermal Diffusivity, mm2/s 3.9
6.8
Thermal Shock Resistance, points 21
19

Alloy Composition

Carbon (C), % 0.2 to 0.3
0 to 0.030
Chromium (Cr), % 24 to 26
17.5 to 18.5
Iron (Fe), % 54.2 to 61.6
77.8 to 82.1
Manganese (Mn), % 8.0 to 10
0 to 1.0
Nickel (Ni), % 6.0 to 8.0
0
Niobium (Nb), % 0
0.3 to 1.0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0.1 to 0.6