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AISI 420 Stainless Steel vs. EN 1.4658 Stainless Steel

Both AISI 420 stainless steel and EN 1.4658 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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 1.4658 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
260
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 8.0 to 15
28
Fatigue Strength, MPa 220 to 670
530
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
81
Shear Strength, MPa 420 to 1010
580
Tensile Strength: Ultimate (UTS), MPa 690 to 1720
900
Tensile Strength: Yield (Proof), MPa 380 to 1310
730

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
460
Maximum Temperature: Mechanical, °C 620
1100
Melting Completion (Liquidus), °C 1510
1450
Melting Onset (Solidus), °C 1450
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
16
Thermal Expansion, µm/m-K 10
13

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
25
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
4.5
Embodied Energy, MJ/kg 28
61
Embodied Water, L/kg 100
200

Common Calculations

PREN (Pitting Resistance) 14
49
Resilience: Ultimate (Unit Rupture Work), MJ/m3 88 to 130
240
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 4410
1280
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 62
32
Strength to Weight: Bending, points 22 to 41
26
Thermal Diffusivity, mm2/s 7.3
4.3
Thermal Shock Resistance, points 25 to 62
24

Alloy Composition

Carbon (C), % 0.15 to 0.4
0 to 0.030
Chromium (Cr), % 12 to 14
26 to 29
Cobalt (Co), % 0
0.5 to 2.0
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 82.3 to 87.9
50.9 to 63.7
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
4.0 to 5.0
Nickel (Ni), % 0 to 0.75
5.5 to 9.5
Nitrogen (N), % 0
0.3 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010