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N08801 Stainless Steel vs. EN 1.4021 Stainless Steel

Both N08801 stainless steel and EN 1.4021 stainless steel are iron alloys. They have 59% of their average alloy composition in common.

For each property being compared, the top bar is N08801 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, % 34
11 to 17
Fatigue Strength, MPa 260
240 to 380
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 570
390 to 530
Tensile Strength: Ultimate (UTS), MPa 860
630 to 880
Tensile Strength: Yield (Proof), MPa 190
390 to 670

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 630
390
Maximum Temperature: Mechanical, °C 1090
760
Melting Completion (Liquidus), °C 1390
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 480
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 30
7.0
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 5.5
1.9
Embodied Energy, MJ/kg 79
27
Embodied Water, L/kg 200
100

Common Calculations

PREN (Pitting Resistance) 21
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
88 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 92
400 to 1160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 30
23 to 31
Strength to Weight: Bending, points 25
21 to 26
Thermal Diffusivity, mm2/s 3.3
8.1
Thermal Shock Resistance, points 20
22 to 31

Alloy Composition

Carbon (C), % 0 to 0.1
0.16 to 0.25
Chromium (Cr), % 19 to 22
12 to 14
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 39.5 to 50.3
83.2 to 87.8
Manganese (Mn), % 0 to 1.5
0 to 1.5
Nickel (Ni), % 30 to 34
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0.75 to 1.5
0