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EN 1.4432 Stainless Steel vs. EN 1.4301 Stainless Steel

Both EN 1.4432 stainless steel and EN 1.4301 stainless steel are iron alloys. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4432 stainless steel and the bottom bar is EN 1.4301 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 44
14 to 46
Fatigue Strength, MPa 220
200 to 330
Impact Strength: V-Notched Charpy, J 90
91 to 94
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Shear Strength, MPa 420
430 to 550
Tensile Strength: Ultimate (UTS), MPa 610
610 to 900
Tensile Strength: Yield (Proof), MPa 250
220 to 570

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 960
940
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 19
15
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.9
3.0
Embodied Energy, MJ/kg 54
43
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 27
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
110 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 150
120 to 820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
22 to 32
Strength to Weight: Bending, points 20
20 to 27
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 14
14 to 20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.070
Chromium (Cr), % 16.5 to 18.5
17.5 to 19.5
Iron (Fe), % 62.3 to 70.5
66.8 to 74.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.5 to 3.0
0
Nickel (Ni), % 10.5 to 13
8.0 to 10.5
Nitrogen (N), % 0 to 0.1
0 to 0.1
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015