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EN 1.4107 Stainless Steel vs. S21800 Stainless Steel

Both EN 1.4107 stainless steel and S21800 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4107 stainless steel and the bottom bar is S21800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 21
40
Fatigue Strength, MPa 260 to 350
330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 620 to 700
740
Tensile Strength: Yield (Proof), MPa 400 to 570
390

Thermal Properties

Latent Heat of Fusion, J/g 270
340
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 740
900
Melting Completion (Liquidus), °C 1450
1360
Melting Onset (Solidus), °C 1410
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
15
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 2.1
3.1
Embodied Energy, MJ/kg 30
45
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 13
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
250
Resilience: Unit (Modulus of Resilience), kJ/m3 420 to 840
390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 22 to 25
27
Strength to Weight: Bending, points 21 to 22
24
Thermal Shock Resistance, points 22 to 25
17

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.1
Chromium (Cr), % 11.5 to 12.5
16 to 18
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 83.8 to 87.2
59.1 to 65.4
Manganese (Mn), % 0.5 to 0.8
7.0 to 9.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0.8 to 1.5
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.030
0 to 0.060
Silicon (Si), % 0 to 0.4
3.5 to 4.5
Sulfur (S), % 0 to 0.020
0 to 0.030
Vanadium (V), % 0 to 0.080
0