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EN 1.4303 Stainless Steel vs. EN 1.4466 Stainless Steel

Both EN 1.4303 stainless steel and EN 1.4466 stainless steel are iron alloys. They have 81% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4303 stainless steel and the bottom bar is EN 1.4466 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
210
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 13 to 49
42
Fatigue Strength, MPa 220 to 320
250
Impact Strength: V-Notched Charpy, J 91 to 98
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
80
Shear Strength, MPa 420 to 540
440
Tensile Strength: Ultimate (UTS), MPa 590 to 900
640
Tensile Strength: Yield (Proof), MPa 230 to 560
280

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
450
Maximum Temperature: Mechanical, °C 940
1100
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
14
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 17
28
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.2
5.0
Embodied Energy, MJ/kg 46
70
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 19
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 230
220
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 800
200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 32
22
Strength to Weight: Bending, points 20 to 26
21
Thermal Diffusivity, mm2/s 4.0
3.7
Thermal Shock Resistance, points 13 to 20
14

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.020
Chromium (Cr), % 17 to 19
24 to 26
Iron (Fe), % 64.8 to 72
45.6 to 52.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 11 to 13
21 to 23
Nitrogen (N), % 0 to 0.1
0.1 to 0.16
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.010