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S66286 Stainless Steel vs. EN 1.4021 Stainless Steel

Both S66286 stainless steel and EN 1.4021 stainless steel are iron alloys. They have 69% of their average alloy composition in common.

For each property being compared, the top bar is S66286 stainless steel and the bottom bar is EN 1.4021 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 40
11 to 17
Fatigue Strength, MPa 240 to 410
240 to 380
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 420 to 630
390 to 530
Tensile Strength: Ultimate (UTS), MPa 620 to 1020
630 to 880
Tensile Strength: Yield (Proof), MPa 280 to 670
390 to 670

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 780
390
Maximum Temperature: Mechanical, °C 920
760
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
30
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 26
7.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 6.0
1.9
Embodied Energy, MJ/kg 87
27
Embodied Water, L/kg 170
100

Common Calculations

PREN (Pitting Resistance) 19
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 200
88 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 1150
400 to 1160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 36
23 to 31
Strength to Weight: Bending, points 20 to 28
21 to 26
Thermal Diffusivity, mm2/s 4.0
8.1
Thermal Shock Resistance, points 13 to 22
22 to 31

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0 to 0.080
0.16 to 0.25
Chromium (Cr), % 13.5 to 16
12 to 14
Iron (Fe), % 49.1 to 59.5
83.2 to 87.8
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 1.0 to 1.5
0
Nickel (Ni), % 24 to 27
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 1.9 to 2.4
0
Vanadium (V), % 0.1 to 0.5
0

Comparable Variants