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AISI 420 Stainless Steel vs. EN 1.4002 Stainless Steel

Both AISI 420 stainless steel and EN 1.4002 stainless steel are iron alloys. Their average alloy composition is basically identical. 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 AISI 420 stainless steel and the bottom bar is EN 1.4002 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 8.0 to 15
19
Fatigue Strength, MPa 220 to 670
160
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 420 to 1010
310
Tensile Strength: Ultimate (UTS), MPa 690 to 1720
500
Tensile Strength: Yield (Proof), MPa 380 to 1310
260

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 620
760
Melting Completion (Liquidus), °C 1510
1440
Melting Onset (Solidus), °C 1450
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 27
30
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
7.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.0
1.9
Embodied Energy, MJ/kg 28
27
Embodied Water, L/kg 100
100

Common Calculations

PREN (Pitting Resistance) 14
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 130
80
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 4410
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 62
18
Strength to Weight: Bending, points 22 to 41
18
Thermal Diffusivity, mm2/s 7.3
8.1
Thermal Shock Resistance, points 25 to 62
18

Alloy Composition

Aluminum (Al), % 0
0.1 to 0.3
Carbon (C), % 0.15 to 0.4
0 to 0.080
Chromium (Cr), % 12 to 14
12 to 14
Iron (Fe), % 82.3 to 87.9
83.6 to 87.9
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.75
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