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EN 1.4116 Stainless Steel vs. S41045 Stainless Steel

Both EN 1.4116 stainless steel and S41045 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a very high 97% 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 S41045 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14
25
Fatigue Strength, MPa 240
160
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 88
70
Shear Modulus, GPa 76
76
Shear Strength, MPa 450
280
Tensile Strength: Ultimate (UTS), MPa 750
430
Tensile Strength: Yield (Proof), MPa 430
230

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 390
430
Maximum Temperature: Mechanical, °C 800
740
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
29
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
8.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.5
2.2
Embodied Energy, MJ/kg 36
31
Embodied Water, L/kg 110
100

Common Calculations

PREN (Pitting Resistance) 18
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 87
92
Resilience: Unit (Modulus of Resilience), kJ/m3 470
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
16
Strength to Weight: Bending, points 24
16
Thermal Diffusivity, mm2/s 8.1
7.8
Thermal Shock Resistance, points 26
16

Alloy Composition

Carbon (C), % 0.45 to 0.55
0 to 0.030
Chromium (Cr), % 14 to 15
12 to 13
Iron (Fe), % 81.3 to 85
83.8 to 88
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.5 to 0.8
0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0 to 0.6
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
Vanadium (V), % 0.1 to 0.2
0