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EN 1.4659 Stainless Steel vs. EN 1.4003 Stainless Steel

Both EN 1.4659 stainless steel and EN 1.4003 stainless steel are iron alloys. They have 54% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4659 stainless steel and the bottom bar is EN 1.4003 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
180
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 49
22
Fatigue Strength, MPa 460
210
Impact Strength: V-Notched Charpy, J 94
67
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
76
Shear Strength, MPa 640
340
Tensile Strength: Ultimate (UTS), MPa 900
540
Tensile Strength: Yield (Proof), MPa 480
320

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 440
390
Maximum Temperature: Mechanical, °C 1100
720
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 12
25
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 37
6.5
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 6.5
1.9
Embodied Energy, MJ/kg 89
27
Embodied Water, L/kg 220
97

Common Calculations

PREN (Pitting Resistance) 54
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 370
100
Resilience: Unit (Modulus of Resilience), kJ/m3 550
260
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 31
19
Strength to Weight: Bending, points 25
19
Thermal Diffusivity, mm2/s 3.2
6.7
Thermal Shock Resistance, points 19
19

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 23 to 25
10.5 to 12.5
Copper (Cu), % 1.0 to 2.0
0
Iron (Fe), % 35.7 to 45.7
83.9 to 89.2
Manganese (Mn), % 2.0 to 4.0
0 to 1.5
Molybdenum (Mo), % 5.5 to 6.5
0
Nickel (Ni), % 21 to 23
0.3 to 1.0
Nitrogen (N), % 0.35 to 0.5
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015
Tungsten (W), % 1.5 to 2.5
0