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EN 1.4125 Stainless Steel vs. S21603 Stainless Steel

Both EN 1.4125 stainless steel and S21603 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 81% 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 1.4125 stainless steel and the bottom bar is S21603 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 19
45
Fatigue Strength, MPa 300
360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Shear Strength, MPa 500
490
Tensile Strength: Ultimate (UTS), MPa 800
690
Tensile Strength: Yield (Proof), MPa 470
390

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 870
990
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 10
17

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
17
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.3
3.6
Embodied Energy, MJ/kg 32
50
Embodied Water, L/kg 120
160

Common Calculations

PREN (Pitting Resistance) 19
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
270
Resilience: Unit (Modulus of Resilience), kJ/m3 570
380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29
25
Strength to Weight: Bending, points 25
22
Thermal Shock Resistance, points 29
15

Alloy Composition

Carbon (C), % 1.0 to 1.2
0 to 0.030
Chromium (Cr), % 16 to 18
17.5 to 22
Iron (Fe), % 78 to 82.7
57.6 to 67.8
Manganese (Mn), % 0 to 1.0
7.5 to 9.0
Molybdenum (Mo), % 0.4 to 0.8
2.0 to 3.0
Nickel (Ni), % 0
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030