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EN 1.4911 Stainless Steel vs. N08925 Stainless Steel

Both EN 1.4911 stainless steel and N08925 stainless steel are iron alloys. They have 59% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4911 stainless steel and the bottom bar is N08925 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11
45
Fatigue Strength, MPa 530
310
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
80
Shear Strength, MPa 640
470
Tensile Strength: Ultimate (UTS), MPa 1070
680
Tensile Strength: Yield (Proof), MPa 970
340

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 430
420
Maximum Temperature: Mechanical, °C 700
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 20
13
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 20
33
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 3.4
6.2
Embodied Energy, MJ/kg 49
84
Embodied Water, L/kg 130
200

Common Calculations

PREN (Pitting Resistance) 14
44
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
250
Resilience: Unit (Modulus of Resilience), kJ/m3 2410
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 38
23
Strength to Weight: Bending, points 30
21
Thermal Diffusivity, mm2/s 5.4
3.5
Thermal Shock Resistance, points 37
15

Alloy Composition

Boron (B), % 0.0050 to 0.015
0
Carbon (C), % 0.050 to 0.12
0 to 0.020
Chromium (Cr), % 9.8 to 11.2
19 to 21
Cobalt (Co), % 5.0 to 7.0
0
Copper (Cu), % 0
0.8 to 1.5
Iron (Fe), % 75.7 to 83.8
42.7 to 50.1
Manganese (Mn), % 0.3 to 1.3
0 to 1.0
Molybdenum (Mo), % 0.5 to 1.0
6.0 to 7.0
Nickel (Ni), % 0.2 to 1.2
24 to 26
Niobium (Nb), % 0.2 to 0.5
0
Nitrogen (N), % 0 to 0.035
0.1 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0.1 to 0.8
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 0 to 0.7
0
Vanadium (V), % 0.1 to 0.4
0