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EN 1.4872 Stainless Steel vs. AISI 439 Stainless Steel

Both EN 1.4872 stainless steel and AISI 439 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 33 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 1.4872 stainless steel and the bottom bar is AISI 439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
23
Fatigue Strength, MPa 410
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 620
310
Tensile Strength: Ultimate (UTS), MPa 950
490
Tensile Strength: Yield (Proof), MPa 560
250

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 440
530
Maximum Temperature: Mechanical, °C 1150
890
Melting Completion (Liquidus), °C 1390
1510
Melting Onset (Solidus), °C 1340
1430
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 16
11

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
9.0
Density, g/cm3 7.6
7.7
Embodied Carbon, kg CO2/kg material 3.3
2.3
Embodied Energy, MJ/kg 47
34
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 30
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
95
Resilience: Unit (Modulus of Resilience), kJ/m3 780
160
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 35
18
Strength to Weight: Bending, points 28
18
Thermal Diffusivity, mm2/s 3.9
6.7
Thermal Shock Resistance, points 21
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Carbon (C), % 0.2 to 0.3
0 to 0.030
Chromium (Cr), % 24 to 26
17 to 19
Iron (Fe), % 54.2 to 61.6
77.1 to 82.8
Manganese (Mn), % 8.0 to 10
0 to 1.0
Nickel (Ni), % 6.0 to 8.0
0 to 0.5
Nitrogen (N), % 0.2 to 0.4
0 to 0.030
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 0.030
Titanium (Ti), % 0
0.2 to 1.1