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EN 1.4005 Stainless Steel vs. S40977 Stainless Steel

Both EN 1.4005 stainless steel and S40977 stainless steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 32 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 1.4005 stainless steel and the bottom bar is S40977 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 13 to 21
21
Fatigue Strength, MPa 240 to 290
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 390 to 450
320
Tensile Strength: Ultimate (UTS), MPa 630 to 750
510
Tensile Strength: Yield (Proof), MPa 370 to 500
310

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 760
720
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
25
Thermal Expansion, µm/m-K 10
10

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
6.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.9
Embodied Energy, MJ/kg 28
27
Embodied Water, L/kg 100
97

Common Calculations

PREN (Pitting Resistance) 14
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 110
92
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 650
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23 to 27
18
Strength to Weight: Bending, points 21 to 24
18
Thermal Diffusivity, mm2/s 8.1
6.7
Thermal Shock Resistance, points 23 to 27
18

Alloy Composition

Carbon (C), % 0.060 to 0.15
0 to 0.030
Chromium (Cr), % 12 to 14
10.5 to 12.5
Iron (Fe), % 82.4 to 87.8
83.9 to 89.2
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 0 to 0.6
0
Nickel (Ni), % 0
0.3 to 1.0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0.15 to 0.35
0 to 0.015