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EN 1.4945 Stainless Steel vs. EN 1.4020 Stainless Steel

Both EN 1.4945 stainless steel and EN 1.4020 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 29 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 EN 1.4945 stainless steel and the bottom bar is EN 1.4020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 220
190 to 340
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 19 to 34
13 to 34
Fatigue Strength, MPa 230 to 350
340 to 540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 430 to 460
510 to 680
Tensile Strength: Ultimate (UTS), MPa 640 to 740
770 to 1130
Tensile Strength: Yield (Proof), MPa 290 to 550
430 to 950

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 520
410
Maximum Temperature: Mechanical, °C 920
890
Melting Completion (Liquidus), °C 1490
1390
Melting Onset (Solidus), °C 1440
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 30
11
Density, g/cm3 8.1
7.6
Embodied Carbon, kg CO2/kg material 5.0
2.5
Embodied Energy, MJ/kg 73
37
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 23
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
140 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 760
460 to 2290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 25
28 to 41
Strength to Weight: Bending, points 20 to 22
25 to 32
Thermal Shock Resistance, points 14 to 16
16 to 23

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.15
Chromium (Cr), % 15.5 to 17.5
16.5 to 19
Iron (Fe), % 57.9 to 65.7
62.8 to 71.8
Manganese (Mn), % 0 to 1.5
11 to 14
Nickel (Ni), % 15.5 to 17.5
0.5 to 2.5
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0.2 to 0.45
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0.3 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.5 to 3.5
0

Comparable Variants