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EN 1.4845 Stainless Steel vs. EN 1.4429 Stainless Steel

Both EN 1.4845 stainless steel and EN 1.4429 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 84% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4845 stainless steel and the bottom bar is EN 1.4429 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
220
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 38
40
Fatigue Strength, MPa 200
280
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
78
Shear Strength, MPa 410
470
Tensile Strength: Ultimate (UTS), MPa 600
690
Tensile Strength: Yield (Proof), MPa 240
320

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 450
410
Maximum Temperature: Mechanical, °C 1050
960
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 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 25
20
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 4.3
4.0
Embodied Energy, MJ/kg 61
55
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 26
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
230
Resilience: Unit (Modulus of Resilience), kJ/m3 140
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
24
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 14
15

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 24 to 26
16.5 to 18.5
Iron (Fe), % 48.2 to 57
61.2 to 69.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 19 to 22
11 to 14
Nitrogen (N), % 0 to 0.1
0.12 to 0.22
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015