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EN 1.4945 Stainless Steel vs. AISI 403 Stainless Steel

Both EN 1.4945 stainless steel and AISI 403 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 (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4945 stainless steel and the bottom bar is AISI 403 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 220
190 to 240
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 19 to 34
16 to 25
Fatigue Strength, MPa 230 to 350
200 to 340
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 430 to 460
340 to 480
Tensile Strength: Ultimate (UTS), MPa 640 to 740
530 to 780
Tensile Strength: Yield (Proof), MPa 290 to 550
280 to 570

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 520
390
Maximum Temperature: Mechanical, °C 920
740
Melting Completion (Liquidus), °C 1490
1450
Melting Onset (Solidus), °C 1440
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
28
Thermal Expansion, µm/m-K 17
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 30
6.5
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 5.0
1.9
Embodied Energy, MJ/kg 73
27
Embodied Water, L/kg 150
99

Common Calculations

PREN (Pitting Resistance) 23
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 760
210 to 840
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 25
19 to 28
Strength to Weight: Bending, points 20 to 22
19 to 24
Thermal Diffusivity, mm2/s 3.7
7.6
Thermal Shock Resistance, points 14 to 16
20 to 29

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.15
Chromium (Cr), % 15.5 to 17.5
11.5 to 13
Iron (Fe), % 57.9 to 65.7
84.7 to 88.5
Manganese (Mn), % 0 to 1.5
0 to 1.0
Nickel (Ni), % 15.5 to 17.5
0 to 0.6
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0.060 to 0.14
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.3 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Tungsten (W), % 2.5 to 3.5
0