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EN 1.4911 Stainless Steel vs. EN 1.4006 Stainless Steel

Both EN 1.4911 stainless steel and EN 1.4006 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4911 stainless steel and the bottom bar is EN 1.4006 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
16 to 23
Fatigue Strength, MPa 530
150 to 300
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 640
370 to 460
Tensile Strength: Ultimate (UTS), MPa 1070
590 to 750
Tensile Strength: Yield (Proof), MPa 970
230 to 510

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 430
390
Maximum Temperature: Mechanical, °C 700
740
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 20
30
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
7.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.4
1.9
Embodied Energy, MJ/kg 49
27
Embodied Water, L/kg 130
100

Common Calculations

PREN (Pitting Resistance) 14
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
99 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 2410
140 to 660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 38
21 to 27
Strength to Weight: Bending, points 30
20 to 24
Thermal Diffusivity, mm2/s 5.4
8.1
Thermal Shock Resistance, points 37
21 to 26

Alloy Composition

Boron (B), % 0.0050 to 0.015
0
Carbon (C), % 0.050 to 0.12
0.080 to 0.15
Chromium (Cr), % 9.8 to 11.2
11.5 to 13.5
Cobalt (Co), % 5.0 to 7.0
0
Iron (Fe), % 75.7 to 83.8
83.1 to 88.4
Manganese (Mn), % 0.3 to 1.3
0 to 1.5
Molybdenum (Mo), % 0.5 to 1.0
0
Nickel (Ni), % 0.2 to 1.2
0 to 0.75
Niobium (Nb), % 0.2 to 0.5
0
Nitrogen (N), % 0 to 0.035
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.8
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Tungsten (W), % 0 to 0.7
0
Vanadium (V), % 0.1 to 0.4
0