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EN 1.4003 Stainless Steel vs. EN 1.4335 Stainless Steel

Both EN 1.4003 stainless steel and EN 1.4335 stainless steel are iron alloys. They have 66% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4003 stainless steel and the bottom bar is EN 1.4335 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
45
Fatigue Strength, MPa 210
210
Impact Strength: V-Notched Charpy, J 67
90
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Shear Strength, MPa 340
400
Tensile Strength: Ultimate (UTS), MPa 540
570
Tensile Strength: Yield (Proof), MPa 320
230

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 390
450
Maximum Temperature: Mechanical, °C 720
1100
Melting Completion (Liquidus), °C 1440
1410
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
14
Thermal Expansion, µm/m-K 10
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
25
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.9
4.4
Embodied Energy, MJ/kg 27
62
Embodied Water, L/kg 97
190

Common Calculations

PREN (Pitting Resistance) 12
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
210
Resilience: Unit (Modulus of Resilience), kJ/m3 260
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
20
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 6.7
3.7
Thermal Shock Resistance, points 19
12

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 10.5 to 12.5
24 to 26
Iron (Fe), % 83.9 to 89.2
49.4 to 56
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0.3 to 1.0
20 to 22
Nitrogen (N), % 0 to 0.030
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.25
Sulfur (S), % 0 to 0.015
0 to 0.010