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EN 1.4020 Stainless Steel vs. EN 1.7380 Steel

Both EN 1.4020 stainless steel and EN 1.7380 steel are iron alloys. They have 70% of their average alloy composition in common. There are 28 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 EN 1.7380 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
160 to 170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 13 to 34
19 to 20
Fatigue Strength, MPa 340 to 540
200 to 230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Shear Strength, MPa 510 to 680
330 to 350
Tensile Strength: Ultimate (UTS), MPa 770 to 1130
540 to 550
Tensile Strength: Yield (Proof), MPa 430 to 950
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 890
460
Melting Completion (Liquidus), °C 1390
1470
Melting Onset (Solidus), °C 1350
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 11
3.8
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 2.5
1.8
Embodied Energy, MJ/kg 37
23
Embodied Water, L/kg 150
59

Common Calculations

PREN (Pitting Resistance) 23
5.6
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 220
87 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 2290
230 to 280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 41
19 to 20
Strength to Weight: Bending, points 25 to 32
19
Thermal Shock Resistance, points 16 to 23
15 to 16

Alloy Composition

Carbon (C), % 0 to 0.15
0.080 to 0.14
Chromium (Cr), % 16.5 to 19
2.0 to 2.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 62.8 to 71.8
94.6 to 96.6
Manganese (Mn), % 11 to 14
0.4 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0.5 to 2.5
0
Nitrogen (N), % 0.2 to 0.45
0 to 0.012
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010