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EN 1.4369 Stainless Steel vs. EN 1.4435 Stainless Steel

Both EN 1.4369 stainless steel and EN 1.4435 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4369 stainless steel and the bottom bar is EN 1.4435 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
43
Fatigue Strength, MPa 330
220
Impact Strength: V-Notched Charpy, J 91
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 580
420
Tensile Strength: Ultimate (UTS), MPa 850
610
Tensile Strength: Yield (Proof), MPa 390
240

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 420
420
Maximum Temperature: Mechanical, °C 940
980
Melting Completion (Liquidus), °C 1400
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 14
21
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.0
4.1
Embodied Energy, MJ/kg 43
57
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 23
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
210
Resilience: Unit (Modulus of Resilience), kJ/m3 380
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31
21
Strength to Weight: Bending, points 26
20
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 18
14

Alloy Composition

Carbon (C), % 0.070 to 0.15
0 to 0.030
Chromium (Cr), % 17.5 to 19.5
17 to 19
Iron (Fe), % 63 to 70.2
59.8 to 68
Manganese (Mn), % 5.0 to 7.5
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 6.5 to 8.5
12.5 to 15
Nitrogen (N), % 0.2 to 0.3
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.5 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015