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EN 1.4854 Stainless Steel vs. S21640 Stainless Steel

Both EN 1.4854 stainless steel and S21640 stainless steel are iron alloys. They have 63% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4854 stainless steel and the bottom bar is S21640 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 45
46
Fatigue Strength, MPa 310
320
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
78
Shear Strength, MPa 520
520
Tensile Strength: Ultimate (UTS), MPa 750
740
Tensile Strength: Yield (Proof), MPa 340
350

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Corrosion, °C 450
490
Maximum Temperature: Mechanical, °C 1170
940
Melting Completion (Liquidus), °C 1370
1430
Melting Onset (Solidus), °C 1330
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 11
15
Thermal Expansion, µm/m-K 15
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 34
17
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 5.7
3.6
Embodied Energy, MJ/kg 81
51
Embodied Water, L/kg 220
150

Common Calculations

PREN (Pitting Resistance) 28
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
280
Resilience: Unit (Modulus of Resilience), kJ/m3 280
300
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
27
Strength to Weight: Bending, points 23
23
Thermal Diffusivity, mm2/s 2.9
4.0
Thermal Shock Resistance, points 18
16

Alloy Composition

Carbon (C), % 0.040 to 0.080
0 to 0.080
Cerium (Ce), % 0.030 to 0.080
0
Chromium (Cr), % 24 to 26
17.5 to 19.5
Iron (Fe), % 33.6 to 40.6
63 to 74.3
Manganese (Mn), % 0 to 2.0
3.5 to 6.5
Molybdenum (Mo), % 0
0.5 to 2.0
Nickel (Ni), % 34 to 36
4.0 to 6.5
Niobium (Nb), % 0
0.1 to 1.0
Nitrogen (N), % 0.12 to 0.2
0.080 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 1.2 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030