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N08904 Stainless Steel vs. EN 1.4021 Stainless Steel

Both N08904 stainless steel and EN 1.4021 stainless steel are iron alloys. They have 60% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is N08904 stainless steel and the bottom bar is EN 1.4021 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 38
11 to 17
Fatigue Strength, MPa 200
240 to 380
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Shear Strength, MPa 370
390 to 530
Tensile Strength: Ultimate (UTS), MPa 540
630 to 880
Tensile Strength: Yield (Proof), MPa 240
390 to 670

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 430
390
Maximum Temperature: Mechanical, °C 1100
760
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
30
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 32
7.0
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 5.8
1.9
Embodied Energy, MJ/kg 79
27
Embodied Water, L/kg 200
100

Common Calculations

PREN (Pitting Resistance) 37
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
88 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 150
400 to 1160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
23 to 31
Strength to Weight: Bending, points 18
21 to 26
Thermal Diffusivity, mm2/s 3.1
8.1
Thermal Shock Resistance, points 12
22 to 31

Alloy Composition

Carbon (C), % 0 to 0.020
0.16 to 0.25
Chromium (Cr), % 19 to 23
12 to 14
Copper (Cu), % 1.0 to 2.0
0
Iron (Fe), % 38.8 to 53
83.2 to 87.8
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 23 to 28
0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.035
0 to 0.015