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EN 1.4020 Stainless Steel vs. AISI 334 Stainless Steel

Both EN 1.4020 stainless steel and AISI 334 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 29 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 EN 1.4020 stainless steel and the bottom bar is AISI 334 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 13 to 34
34
Fatigue Strength, MPa 340 to 540
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 510 to 680
360
Tensile Strength: Ultimate (UTS), MPa 770 to 1130
540
Tensile Strength: Yield (Proof), MPa 430 to 950
190

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
490
Maximum Temperature: Mechanical, °C 890
1000
Melting Completion (Liquidus), °C 1390
1410
Melting Onset (Solidus), °C 1350
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 11
22
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 2.5
4.1
Embodied Energy, MJ/kg 37
59
Embodied Water, L/kg 150
170

Common Calculations

PREN (Pitting Resistance) 23
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 220
140
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2290
96
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 41
19
Strength to Weight: Bending, points 25 to 32
19
Thermal Shock Resistance, points 16 to 23
12

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 16.5 to 19
18 to 20
Iron (Fe), % 62.8 to 71.8
55.7 to 62.7
Manganese (Mn), % 11 to 14
0 to 1.0
Nickel (Ni), % 0.5 to 2.5
19 to 21
Nitrogen (N), % 0.2 to 0.45
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6