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AISI 403 Stainless Steel vs. EN 1.4438 Stainless Steel

Both AISI 403 stainless steel and EN 1.4438 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 403 stainless steel and the bottom bar is EN 1.4438 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 240
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16 to 25
41
Fatigue Strength, MPa 200 to 340
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Shear Strength, MPa 340 to 480
420
Tensile Strength: Ultimate (UTS), MPa 530 to 780
620
Tensile Strength: Yield (Proof), MPa 280 to 570
250

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 740
1000
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 28
14
Thermal Expansion, µm/m-K 9.9
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
22
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.9
4.4
Embodied Energy, MJ/kg 27
60
Embodied Water, L/kg 99
160

Common Calculations

PREN (Pitting Resistance) 12
31
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
200
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 840
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19 to 28
22
Strength to Weight: Bending, points 19 to 24
20
Thermal Diffusivity, mm2/s 7.6
3.7
Thermal Shock Resistance, points 20 to 29
14

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 11.5 to 13
17.5 to 19.5
Iron (Fe), % 84.7 to 88.5
57.3 to 66.5
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0 to 0.6
13 to 16
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015