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EN 1.4105 Stainless Steel vs. EN 1.4150 Stainless Steel

Both EN 1.4105 stainless steel and EN 1.4150 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4105 stainless steel and the bottom bar is EN 1.4150 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
20
Fatigue Strength, MPa 190
270
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 340
460
Tensile Strength: Ultimate (UTS), MPa 530
730
Tensile Strength: Yield (Proof), MPa 290
430

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 870
840
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 25
23
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
8.5
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 2.2
2.8
Embodied Energy, MJ/kg 31
42
Embodied Water, L/kg 120
120

Common Calculations

PREN (Pitting Resistance) 18
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
120
Resilience: Unit (Modulus of Resilience), kJ/m3 210
470
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
27
Strength to Weight: Bending, points 19
24
Thermal Diffusivity, mm2/s 6.7
6.2
Thermal Shock Resistance, points 19
27

Alloy Composition

Carbon (C), % 0 to 0.080
0.45 to 0.6
Chromium (Cr), % 16 to 18
15 to 16.5
Iron (Fe), % 77.9 to 83.7
79 to 82.8
Manganese (Mn), % 0 to 1.5
0 to 0.8
Molybdenum (Mo), % 0.2 to 0.6
0.2 to 0.4
Nickel (Ni), % 0
0 to 0.4
Nitrogen (N), % 0
0.050 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.5
1.3 to 1.7
Sulfur (S), % 0.15 to 0.35
0 to 0.010
Vanadium (V), % 0
0.2 to 0.4