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S21800 Stainless Steel vs. EN 1.4825 Stainless Steel

Both S21800 stainless steel and EN 1.4825 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S21800 stainless steel and the bottom bar is EN 1.4825 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
150
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 40
17
Fatigue Strength, MPa 330
160
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 740
510
Tensile Strength: Yield (Proof), MPa 390
260

Thermal Properties

Latent Heat of Fusion, J/g 340
300
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 900
900
Melting Completion (Liquidus), °C 1360
1410
Melting Onset (Solidus), °C 1310
1370
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Base Metal Price, % relative 15
15
Density, g/cm3 7.5
7.7
Embodied Carbon, kg CO2/kg material 3.1
3.1
Embodied Energy, MJ/kg 45
43
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 19
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
72
Resilience: Unit (Modulus of Resilience), kJ/m3 390
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 27
18
Strength to Weight: Bending, points 24
18
Thermal Shock Resistance, points 17
12

Alloy Composition

Carbon (C), % 0 to 0.1
0.15 to 0.35
Chromium (Cr), % 16 to 18
17 to 19
Iron (Fe), % 59.1 to 65.4
65.6 to 74.4
Manganese (Mn), % 7.0 to 9.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 8.0 to 9.0
8.0 to 10
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 3.5 to 4.5
0.5 to 2.5
Sulfur (S), % 0 to 0.030
0 to 0.030