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EN 1.4318 Stainless Steel vs. S21600 Stainless Steel

Both EN 1.4318 stainless steel and S21600 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 29 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 EN 1.4318 stainless steel and the bottom bar is S21600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 44
46
Fatigue Strength, MPa 340
360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 520
500
Tensile Strength: Ultimate (UTS), MPa 740
710
Tensile Strength: Yield (Proof), MPa 380
390

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 910
990
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 13
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.8
3.6
Embodied Energy, MJ/kg 39
50
Embodied Water, L/kg 130
160

Common Calculations

PREN (Pitting Resistance) 20
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
270
Resilience: Unit (Modulus of Resilience), kJ/m3 360
370
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
25
Strength to Weight: Bending, points 23
23
Thermal Shock Resistance, points 17
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 16.5 to 18.5
17.5 to 22
Iron (Fe), % 70.2 to 77.4
57.6 to 67.8
Manganese (Mn), % 0 to 2.0
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 6.0 to 8.0
5.0 to 7.0
Nitrogen (N), % 0.1 to 0.2
0.25 to 0.5
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030