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AISI 304 Stainless Steel vs. EN 1.4020 Stainless Steel

Both AISI 304 stainless steel and EN 1.4020 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 304 stainless steel and the bottom bar is EN 1.4020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 360
190 to 340
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 8.0 to 43
13 to 34
Fatigue Strength, MPa 210 to 440
340 to 540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 400 to 690
510 to 680
Tensile Strength: Ultimate (UTS), MPa 580 to 1180
770 to 1130
Tensile Strength: Yield (Proof), MPa 230 to 860
430 to 950

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 710
890
Melting Completion (Liquidus), °C 1450
1390
Melting Onset (Solidus), °C 1400
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 15
11
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 3.0
2.5
Embodied Energy, MJ/kg 43
37
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 20
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 250
140 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1870
460 to 2290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 42
28 to 41
Strength to Weight: Bending, points 20 to 32
25 to 32
Thermal Shock Resistance, points 12 to 25
16 to 23

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 18 to 20
16.5 to 19
Iron (Fe), % 66.5 to 74
62.8 to 71.8
Manganese (Mn), % 0 to 2.0
11 to 14
Nickel (Ni), % 8.0 to 10.5
0.5 to 2.5
Nitrogen (N), % 0 to 0.1
0.2 to 0.45
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030