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EN 1.4581 Stainless Steel vs. S21603 Stainless Steel

Both EN 1.4581 stainless steel and S21603 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4581 stainless steel and the bottom bar is S21603 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
45
Fatigue Strength, MPa 150
360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
79
Tensile Strength: Ultimate (UTS), MPa 510
690
Tensile Strength: Yield (Proof), MPa 210
390

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 490
420
Maximum Temperature: Mechanical, °C 990
990
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 21
17
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.2
3.6
Embodied Energy, MJ/kg 59
50
Embodied Water, L/kg 160
160

Common Calculations

PREN (Pitting Resistance) 26
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
270
Resilience: Unit (Modulus of Resilience), kJ/m3 110
380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
25
Strength to Weight: Bending, points 18
22
Thermal Shock Resistance, points 12
15

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 18 to 20
17.5 to 22
Iron (Fe), % 61.4 to 71
57.6 to 67.8
Manganese (Mn), % 0 to 1.5
7.5 to 9.0
Molybdenum (Mo), % 2.0 to 2.5
2.0 to 3.0
Nickel (Ni), % 9.0 to 12
5.0 to 7.0
Niobium (Nb), % 0 to 1.0
0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.5
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030