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EN 1.4347 Stainless Steel vs. S21603 Stainless Steel

Both EN 1.4347 stainless steel and S21603 stainless steel are iron alloys. They have 90% 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 1.4347 stainless steel and the bottom bar is S21603 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
45
Fatigue Strength, MPa 320
360
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
79
Tensile Strength: Ultimate (UTS), MPa 660
690
Tensile Strength: Yield (Proof), MPa 480
390

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
990
Melting Completion (Liquidus), °C 1410
1420
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 16
17
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.1
3.6
Embodied Energy, MJ/kg 44
50
Embodied Water, L/kg 170
160

Common Calculations

PREN (Pitting Resistance) 28
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
270
Resilience: Unit (Modulus of Resilience), kJ/m3 570
380
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
25
Strength to Weight: Bending, points 22
22
Thermal Shock Resistance, points 19
15

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 25 to 27
17.5 to 22
Iron (Fe), % 62.2 to 69.4
57.6 to 67.8
Manganese (Mn), % 0 to 1.5
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 5.5 to 7.5
5.0 to 7.0
Nitrogen (N), % 0.1 to 0.2
0.25 to 0.5
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 1.5
0 to 0.75
Sulfur (S), % 0 to 0.020
0 to 0.030