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EN 1.4828 Stainless Steel vs. EN 1.4581 Stainless Steel

Both EN 1.4828 stainless steel and EN 1.4581 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have a very high 96% 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 1.4828 stainless steel and the bottom bar is EN 1.4581 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 33
28
Fatigue Strength, MPa 200
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 650
510
Tensile Strength: Yield (Proof), MPa 260
210

Thermal Properties

Latent Heat of Fusion, J/g 320
300
Maximum Temperature: Corrosion, °C 420
490
Maximum Temperature: Mechanical, °C 1000
990
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 17
21
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.4
4.2
Embodied Energy, MJ/kg 48
59
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 21
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
120
Resilience: Unit (Modulus of Resilience), kJ/m3 170
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
18
Strength to Weight: Bending, points 22
18
Thermal Diffusivity, mm2/s 4.0
3.9
Thermal Shock Resistance, points 14
12

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.070
Chromium (Cr), % 19 to 21
18 to 20
Iron (Fe), % 61.1 to 68.5
61.4 to 71
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 11 to 13
9.0 to 12
Niobium (Nb), % 0
0 to 1.0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 1.5 to 2.5
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.030