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EN 1.4477 Stainless Steel vs. S43940 Stainless Steel

Both EN 1.4477 stainless steel and S43940 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 33 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 1.4477 stainless steel and the bottom bar is S43940 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
160
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 22 to 23
21
Fatigue Strength, MPa 420 to 490
180
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
77
Shear Strength, MPa 550 to 580
310
Tensile Strength: Ultimate (UTS), MPa 880 to 930
490
Tensile Strength: Yield (Proof), MPa 620 to 730
280

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 460
540
Maximum Temperature: Mechanical, °C 1100
890
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 13
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 20
12
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.7
2.6
Embodied Energy, MJ/kg 52
38
Embodied Water, L/kg 190
120

Common Calculations

PREN (Pitting Resistance) 41
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
86
Resilience: Unit (Modulus of Resilience), kJ/m3 940 to 1290
200
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 33
18
Strength to Weight: Bending, points 26 to 27
18
Thermal Diffusivity, mm2/s 3.5
6.8
Thermal Shock Resistance, points 23 to 25
18

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 28 to 30
17.5 to 18.5
Copper (Cu), % 0 to 0.8
0
Iron (Fe), % 56.6 to 63.6
78.2 to 82.1
Manganese (Mn), % 0.8 to 1.5
0 to 1.0
Molybdenum (Mo), % 1.5 to 2.6
0
Nickel (Ni), % 5.8 to 7.5
0
Niobium (Nb), % 0
0.3 to 0.6
Nitrogen (N), % 0.3 to 0.4
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0.1 to 0.6