MakeItFrom.com
Menu (ESC)

EN 1.4424 Stainless Steel vs. EN 1.7378 Steel

Both EN 1.4424 stainless steel and EN 1.7378 steel are iron alloys. They have 75% of their average alloy composition in common. There are 33 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 1.4424 stainless steel and the bottom bar is EN 1.7378 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
17
Fatigue Strength, MPa 350 to 370
330
Impact Strength: V-Notched Charpy, J 90 to 91
38
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
74
Shear Strength, MPa 520
430
Tensile Strength: Ultimate (UTS), MPa 800
700
Tensile Strength: Yield (Proof), MPa 480 to 500
490

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Maximum Temperature: Mechanical, °C 960
460
Melting Completion (Liquidus), °C 1430
1470
Melting Onset (Solidus), °C 1390
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 13
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
4.0
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.4
2.3
Embodied Energy, MJ/kg 46
33
Embodied Water, L/kg 140
61

Common Calculations

PREN (Pitting Resistance) 29
5.8
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 200
110
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 640
630
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29
25
Strength to Weight: Bending, points 25
22
Thermal Diffusivity, mm2/s 3.5
10
Thermal Shock Resistance, points 23
20

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.0015 to 0.0070
Carbon (C), % 0 to 0.030
0.050 to 0.1
Chromium (Cr), % 18 to 19
2.2 to 2.6
Iron (Fe), % 68.6 to 72.4
94.6 to 96.1
Manganese (Mn), % 1.2 to 2.0
0.3 to 0.7
Molybdenum (Mo), % 2.5 to 3.0
0.9 to 1.1
Nickel (Ni), % 4.5 to 5.2
0
Nitrogen (N), % 0.050 to 0.1
0 to 0.010
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 1.4 to 2.0
0.15 to 0.45
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
0.050 to 0.1
Vanadium (V), % 0
0.2 to 0.3