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EN 1.4116 Stainless Steel vs. S40975 Stainless Steel

Both EN 1.4116 stainless steel and S40975 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a very high 95% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4116 stainless steel and the bottom bar is S40975 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14
22
Fatigue Strength, MPa 240
210
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 88
81
Shear Modulus, GPa 76
75
Shear Strength, MPa 450
290
Tensile Strength: Ultimate (UTS), MPa 750
460
Tensile Strength: Yield (Proof), MPa 430
310

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 390
450
Maximum Temperature: Mechanical, °C 800
710
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
26
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
6.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.5
2.0
Embodied Energy, MJ/kg 36
28
Embodied Water, L/kg 110
95

Common Calculations

PREN (Pitting Resistance) 18
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 87
93
Resilience: Unit (Modulus of Resilience), kJ/m3 470
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
17
Strength to Weight: Bending, points 24
17
Thermal Diffusivity, mm2/s 8.1
7.0
Thermal Shock Resistance, points 26
17

Alloy Composition

Carbon (C), % 0.45 to 0.55
0 to 0.030
Chromium (Cr), % 14 to 15
10.5 to 11.7
Iron (Fe), % 81.3 to 85
84.4 to 89
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.5 to 0.8
0
Nickel (Ni), % 0
0.5 to 1.0
Nitrogen (N), % 0 to 0.15
0 to 0.030
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0
0 to 0.75
Vanadium (V), % 0.1 to 0.2
0