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S40930 Stainless Steel vs. EN 1.4378 Stainless Steel

Both S40930 stainless steel and EN 1.4378 stainless steel are iron alloys. They have 78% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S40930 stainless steel and the bottom bar is EN 1.4378 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
190 to 340
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
14 to 34
Fatigue Strength, MPa 130
340 to 550
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 270
510 to 680
Tensile Strength: Ultimate (UTS), MPa 430
760 to 1130
Tensile Strength: Yield (Proof), MPa 190
430 to 970

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 460
410
Maximum Temperature: Mechanical, °C 710
910
Melting Completion (Liquidus), °C 1450
1390
Melting Onset (Solidus), °C 1410
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 10
17

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
12
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 2.3
2.7
Embodied Energy, MJ/kg 32
39
Embodied Water, L/kg 94
150

Common Calculations

PREN (Pitting Resistance) 11
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
150 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 94
470 to 2370
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 16
28 to 41
Strength to Weight: Bending, points 16
24 to 31
Thermal Shock Resistance, points 16
16 to 23

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 10.5 to 11.7
17 to 19
Iron (Fe), % 84.7 to 89.4
61.2 to 69
Manganese (Mn), % 0 to 1.0
11.5 to 14.5
Nickel (Ni), % 0 to 0.5
2.3 to 3.7
Niobium (Nb), % 0.080 to 0.75
0
Nitrogen (N), % 0 to 0.030
0.2 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0.050 to 0.2
0