MakeItFrom.com
Menu (ESC)

S38815 Stainless Steel vs. EN 1.4378 Stainless Steel

Both S38815 stainless steel and EN 1.4378 stainless steel are iron alloys. They have 80% of their average alloy composition in common.

For each property being compared, the top bar is S38815 stainless steel and the bottom bar is EN 1.4378 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190 to 340
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 34
14 to 34
Fatigue Strength, MPa 230
340 to 550
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Shear Strength, MPa 410
510 to 680
Tensile Strength: Ultimate (UTS), MPa 610
760 to 1130
Tensile Strength: Yield (Proof), MPa 290
430 to 970

Thermal Properties

Latent Heat of Fusion, J/g 370
290
Maximum Temperature: Corrosion, °C 400
410
Maximum Temperature: Mechanical, °C 860
910
Melting Completion (Liquidus), °C 1360
1390
Melting Onset (Solidus), °C 1310
1350
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 15
17

Otherwise Unclassified Properties

Base Metal Price, % relative 19
12
Density, g/cm3 7.5
7.6
Embodied Carbon, kg CO2/kg material 3.8
2.7
Embodied Energy, MJ/kg 54
39
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 18
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
150 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 220
470 to 2370
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
28 to 41
Strength to Weight: Bending, points 21
24 to 31
Thermal Shock Resistance, points 15
16 to 23

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 13 to 15
17 to 19
Copper (Cu), % 0.75 to 1.5
0
Iron (Fe), % 56.1 to 67
61.2 to 69
Manganese (Mn), % 0 to 2.0
11.5 to 14.5
Molybdenum (Mo), % 0.75 to 1.5
0
Nickel (Ni), % 13 to 17
2.3 to 3.7
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 5.5 to 6.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030