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EN 1.4451 Stainless Steel vs. EN 1.4002 Stainless Steel

Both EN 1.4451 stainless steel and EN 1.4002 stainless steel are iron alloys. They have 74% of their average alloy composition in common. There are 31 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 1.4451 stainless steel and the bottom bar is EN 1.4002 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 25
19
Fatigue Strength, MPa 370
160
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 750
500
Tensile Strength: Yield (Proof), MPa 540
260

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 1100
760
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
30
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.8
1.9
Embodied Energy, MJ/kg 53
27
Embodied Water, L/kg 190
100

Common Calculations

PREN (Pitting Resistance) 39
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
80
Resilience: Unit (Modulus of Resilience), kJ/m3 710
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
18
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 4.5
8.1
Thermal Shock Resistance, points 16
18

Alloy Composition

Aluminum (Al), % 0
0.1 to 0.3
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 25 to 27
12 to 14
Copper (Cu), % 2.8 to 3.5
0
Iron (Fe), % 56.2 to 64.6
83.6 to 87.9
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 5.0 to 7.0
0
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015