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AISI 420 Stainless Steel vs. EN 1.4945 Stainless Steel

Both AISI 420 stainless steel and EN 1.4945 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, 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 1.4945 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200 to 220
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 8.0 to 15
19 to 34
Fatigue Strength, MPa 220 to 670
230 to 350
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 420 to 1010
430 to 460
Tensile Strength: Ultimate (UTS), MPa 690 to 1720
640 to 740
Tensile Strength: Yield (Proof), MPa 380 to 1310
290 to 550

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
520
Maximum Temperature: Mechanical, °C 620
920
Melting Completion (Liquidus), °C 1510
1490
Melting Onset (Solidus), °C 1450
1440
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
14
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
30
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 2.0
5.0
Embodied Energy, MJ/kg 28
73
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 14
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 130
130 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 4410
210 to 760
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25 to 62
22 to 25
Strength to Weight: Bending, points 22 to 41
20 to 22
Thermal Diffusivity, mm2/s 7.3
3.7
Thermal Shock Resistance, points 25 to 62
14 to 16

Alloy Composition

Carbon (C), % 0.15 to 0.4
0.040 to 0.1
Chromium (Cr), % 12 to 14
15.5 to 17.5
Iron (Fe), % 82.3 to 87.9
57.9 to 65.7
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 0.75
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0
0.060 to 0.14
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0.3 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0
2.5 to 3.5