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EN 1.4021 Stainless Steel vs. EN 1.4592 Stainless Steel

Both EN 1.4021 stainless steel and EN 1.4592 stainless steel are iron alloys. They have 80% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4021 stainless steel and the bottom bar is EN 1.4592 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 11 to 17
23
Fatigue Strength, MPa 240 to 380
340
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
82
Shear Strength, MPa 390 to 530
400
Tensile Strength: Ultimate (UTS), MPa 630 to 880
630
Tensile Strength: Yield (Proof), MPa 390 to 670
500

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Maximum Temperature: Corrosion, °C 390
550
Maximum Temperature: Mechanical, °C 760
1100
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
17
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
18
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 1.9
3.8
Embodied Energy, MJ/kg 27
52
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 13
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 1160
610
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 23 to 31
23
Strength to Weight: Bending, points 21 to 26
21
Thermal Diffusivity, mm2/s 8.1
4.6
Thermal Shock Resistance, points 22 to 31
20

Alloy Composition

Carbon (C), % 0.16 to 0.25
0 to 0.025
Chromium (Cr), % 12 to 14
28 to 30
Iron (Fe), % 83.2 to 87.8
62.6 to 68.4
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0
3.5 to 4.5
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
0.15 to 0.8