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EN 1.3549 Stainless Steel vs. EN 1.7380 Steel

Both EN 1.3549 stainless steel and EN 1.7380 steel are iron alloys. They have 84% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.3549 stainless steel and the bottom bar is EN 1.7380 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
160 to 170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 730
540 to 550

Thermal Properties

Latent Heat of Fusion, J/g 280
260
Maximum Temperature: Mechanical, °C 910
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 21
39
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 10
3.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.6
1.8
Embodied Energy, MJ/kg 37
23
Embodied Water, L/kg 130
59

Common Calculations

PREN (Pitting Resistance) 22
5.6
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
19 to 20
Strength to Weight: Bending, points 24
19
Thermal Diffusivity, mm2/s 5.6
11
Thermal Shock Resistance, points 26
15 to 16

Alloy Composition

Carbon (C), % 0.85 to 1.0
0.080 to 0.14
Chromium (Cr), % 17 to 19
2.0 to 2.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 77.5 to 82
94.6 to 96.6
Manganese (Mn), % 0 to 1.0
0.4 to 0.8
Molybdenum (Mo), % 0.9 to 1.3
0.9 to 1.1
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Vanadium (V), % 0.070 to 0.12
0