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EN 1.4122 Stainless Steel vs. N08926 Stainless Steel

Both EN 1.4122 stainless steel and N08926 stainless steel are iron alloys. They have 65% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4122 stainless steel and the bottom bar is N08926 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14
40
Fatigue Strength, MPa 260 to 360
290
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Shear Strength, MPa 480 to 520
500
Tensile Strength: Ultimate (UTS), MPa 790 to 850
740
Tensile Strength: Yield (Proof), MPa 450 to 630
330

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 400
420
Maximum Temperature: Mechanical, °C 870
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
33
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 2.4
6.2
Embodied Energy, MJ/kg 33
84
Embodied Water, L/kg 120
200

Common Calculations

PREN (Pitting Resistance) 20
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 93 to 110
240
Resilience: Unit (Modulus of Resilience), kJ/m3 520 to 1000
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 31
25
Strength to Weight: Bending, points 25 to 26
22
Thermal Diffusivity, mm2/s 4.0
3.2
Thermal Shock Resistance, points 28 to 30
16

Alloy Composition

Carbon (C), % 0.33 to 0.45
0 to 0.020
Chromium (Cr), % 15.5 to 17.5
19 to 21
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 77.2 to 83.4
41.7 to 50.4
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0.8 to 1.3
6.0 to 7.0
Nickel (Ni), % 0 to 1.0
24 to 26
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.010