MakeItFrom.com
Menu (ESC)

EN 1.4020 Stainless Steel vs. EN 1.7390 Steel

Both EN 1.4020 stainless steel and EN 1.7390 steel are iron alloys. They have 73% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, 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 EN 1.7390 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 13 to 34
16
Fatigue Strength, MPa 340 to 540
310
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Shear Strength, MPa 510 to 680
440
Tensile Strength: Ultimate (UTS), MPa 770 to 1130
710
Tensile Strength: Yield (Proof), MPa 430 to 950
480

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 890
510
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 11
4.3
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.5
1.7
Embodied Energy, MJ/kg 37
23
Embodied Water, L/kg 150
69

Common Calculations

PREN (Pitting Resistance) 23
6.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 220
100
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2290
600
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28 to 41
25
Strength to Weight: Bending, points 25 to 32
23
Thermal Shock Resistance, points 16 to 23
20

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.18
Chromium (Cr), % 16.5 to 19
4.0 to 6.0
Iron (Fe), % 62.8 to 71.8
91.9 to 95.3
Manganese (Mn), % 11 to 14
0.3 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
Nickel (Ni), % 0.5 to 2.5
0
Nitrogen (N), % 0.2 to 0.45
0
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015