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EN 1.4887 Stainless Steel vs. S21800 Stainless Steel

Both EN 1.4887 stainless steel and S21800 stainless steel are iron alloys. They have 68% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4887 stainless steel and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
40
Fatigue Strength, MPa 280
330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Shear Strength, MPa 400
510
Tensile Strength: Ultimate (UTS), MPa 580
740
Tensile Strength: Yield (Proof), MPa 300
390

Thermal Properties

Latent Heat of Fusion, J/g 320
340
Maximum Temperature: Corrosion, °C 600
410
Maximum Temperature: Mechanical, °C 1100
900
Melting Completion (Liquidus), °C 1390
1360
Melting Onset (Solidus), °C 1350
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 15
16

Otherwise Unclassified Properties

Base Metal Price, % relative 39
15
Density, g/cm3 8.0
7.5
Embodied Carbon, kg CO2/kg material 6.7
3.1
Embodied Energy, MJ/kg 96
45
Embodied Water, L/kg 210
150

Common Calculations

PREN (Pitting Resistance) 22
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
250
Resilience: Unit (Modulus of Resilience), kJ/m3 230
390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 20
27
Strength to Weight: Bending, points 19
24
Thermal Shock Resistance, points 14
17

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.1
Chromium (Cr), % 20 to 23
16 to 18
Iron (Fe), % 34.2 to 45
59.1 to 65.4
Manganese (Mn), % 0 to 2.0
7.0 to 9.0
Nickel (Ni), % 33 to 37
8.0 to 9.0
Niobium (Nb), % 1.0 to 1.5
0
Nitrogen (N), % 0 to 0.1
0.080 to 0.18
Phosphorus (P), % 0 to 0.030
0 to 0.060
Silicon (Si), % 1.0 to 2.0
3.5 to 4.5
Sulfur (S), % 0 to 0.015
0 to 0.030