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EN 1.4878 Stainless Steel vs. EN 1.4854 Stainless Steel

Both EN 1.4878 stainless steel and EN 1.4854 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 67% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4878 stainless steel and the bottom bar is EN 1.4854 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
45
Fatigue Strength, MPa 190
310
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 430
520
Tensile Strength: Ultimate (UTS), MPa 610
750
Tensile Strength: Yield (Proof), MPa 210
340

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Corrosion, °C 490
450
Maximum Temperature: Mechanical, °C 850
1170
Melting Completion (Liquidus), °C 1430
1370
Melting Onset (Solidus), °C 1380
1330
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
11
Thermal Expansion, µm/m-K 17
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 16
34
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.2
5.7
Embodied Energy, MJ/kg 46
81
Embodied Water, L/kg 140
220

Common Calculations

PREN (Pitting Resistance) 18
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
270
Resilience: Unit (Modulus of Resilience), kJ/m3 120
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
26
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 4.0
2.9
Thermal Shock Resistance, points 13
18

Alloy Composition

Carbon (C), % 0 to 0.1
0.040 to 0.080
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 17 to 19
24 to 26
Iron (Fe), % 65 to 74
33.6 to 40.6
Manganese (Mn), % 0 to 2.0
0 to 2.0
Nickel (Ni), % 9.0 to 12
34 to 36
Nitrogen (N), % 0
0.12 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
1.2 to 2.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0 to 0.8
0