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EN 1.7380 Steel vs. S38815 Stainless Steel

Both EN 1.7380 steel and S38815 stainless steel are iron alloys. They have 66% 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 S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160 to 170
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19 to 20
34
Fatigue Strength, MPa 200 to 230
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
74
Shear Strength, MPa 330 to 350
410
Tensile Strength: Ultimate (UTS), MPa 540 to 550
610
Tensile Strength: Yield (Proof), MPa 290 to 330
290

Thermal Properties

Latent Heat of Fusion, J/g 260
370
Maximum Temperature: Mechanical, °C 460
860
Melting Completion (Liquidus), °C 1470
1360
Melting Onset (Solidus), °C 1430
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Base Metal Price, % relative 3.8
19
Density, g/cm3 7.9
7.5
Embodied Carbon, kg CO2/kg material 1.8
3.8
Embodied Energy, MJ/kg 23
54
Embodied Water, L/kg 59
140

Common Calculations

PREN (Pitting Resistance) 5.6
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 87 to 98
170
Resilience: Unit (Modulus of Resilience), kJ/m3 230 to 280
220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19 to 20
22
Strength to Weight: Bending, points 19
21
Thermal Shock Resistance, points 15 to 16
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0.080 to 0.14
0 to 0.030
Chromium (Cr), % 2.0 to 2.5
13 to 15
Copper (Cu), % 0 to 0.3
0.75 to 1.5
Iron (Fe), % 94.6 to 96.6
56.1 to 67
Manganese (Mn), % 0.4 to 0.8
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
0.75 to 1.5
Nickel (Ni), % 0
13 to 17
Nitrogen (N), % 0 to 0.012
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.5
5.5 to 6.5
Sulfur (S), % 0 to 0.010
0 to 0.020