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EN 1.4945 Stainless Steel vs. S21603 Stainless Steel

Both EN 1.4945 stainless steel and S21603 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4945 stainless steel and the bottom bar is S21603 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 220
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 19 to 34
45
Fatigue Strength, MPa 230 to 350
360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 430 to 460
490
Tensile Strength: Ultimate (UTS), MPa 640 to 740
690
Tensile Strength: Yield (Proof), MPa 290 to 550
390

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 520
420
Maximum Temperature: Mechanical, °C 920
990
Melting Completion (Liquidus), °C 1490
1420
Melting Onset (Solidus), °C 1440
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 30
17
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 5.0
3.6
Embodied Energy, MJ/kg 73
50
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 23
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
270
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 760
380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 25
25
Strength to Weight: Bending, points 20 to 22
22
Thermal Shock Resistance, points 14 to 16
15

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.030
Chromium (Cr), % 15.5 to 17.5
17.5 to 22
Iron (Fe), % 57.9 to 65.7
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), % 15.5 to 17.5
5.0 to 7.0
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0.25 to 0.5
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0.3 to 0.6
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.5 to 3.5
0