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EN 1.4020 Stainless Steel vs. SAE-AISI 1340 Steel

Both EN 1.4020 stainless steel and SAE-AISI 1340 steel are iron alloys. They have 69% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, 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 SAE-AISI 1340 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
160 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 13 to 34
11 to 23
Fatigue Strength, MPa 340 to 540
220 to 390
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Shear Strength, MPa 510 to 680
340 to 440
Tensile Strength: Ultimate (UTS), MPa 770 to 1130
540 to 730
Tensile Strength: Yield (Proof), MPa 430 to 950
300 to 620

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 890
400
Melting Completion (Liquidus), °C 1390
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.9
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.5
1.4
Embodied Energy, MJ/kg 37
19
Embodied Water, L/kg 150
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 220
78 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2290
240 to 1040
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 41
19 to 26
Strength to Weight: Bending, points 25 to 32
19 to 23
Thermal Shock Resistance, points 16 to 23
17 to 23

Alloy Composition

Carbon (C), % 0 to 0.15
0.38 to 0.43
Chromium (Cr), % 16.5 to 19
0
Iron (Fe), % 62.8 to 71.8
97.2 to 97.9
Manganese (Mn), % 11 to 14
1.6 to 1.9
Nickel (Ni), % 0.5 to 2.5
0
Nitrogen (N), % 0.2 to 0.45
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040