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EN 1.7380 Steel vs. EN 1.4378 Stainless Steel

Both EN 1.7380 steel and EN 1.4378 stainless steel are iron alloys. They have 68% 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 1.7380 steel and the bottom bar is EN 1.4378 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 170
190 to 340
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19 to 20
14 to 34
Fatigue Strength, MPa 200 to 230
340 to 550
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Shear Strength, MPa 330 to 350
510 to 680
Tensile Strength: Ultimate (UTS), MPa 540 to 550
760 to 1130
Tensile Strength: Yield (Proof), MPa 290 to 330
430 to 970

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 460
910
Melting Completion (Liquidus), °C 1470
1390
Melting Onset (Solidus), °C 1430
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
17

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
12
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 1.8
2.7
Embodied Energy, MJ/kg 23
39
Embodied Water, L/kg 59
150

Common Calculations

PREN (Pitting Resistance) 5.6
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 98
150 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 280
470 to 2370
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19 to 20
28 to 41
Strength to Weight: Bending, points 19
24 to 31
Thermal Shock Resistance, points 15 to 16
16 to 23

Alloy Composition

Carbon (C), % 0.080 to 0.14
0 to 0.080
Chromium (Cr), % 2.0 to 2.5
17 to 19
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 94.6 to 96.6
61.2 to 69
Manganese (Mn), % 0.4 to 0.8
11.5 to 14.5
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
2.3 to 3.7
Nitrogen (N), % 0 to 0.012
0.2 to 0.4
Phosphorus (P), % 0 to 0.020
0 to 0.060
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030