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EN 1.4057 Stainless Steel vs. EN 1.4409 Stainless Steel

Both EN 1.4057 stainless steel and EN 1.4409 stainless steel are iron alloys. They have 86% 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 1.4057 stainless steel and the bottom bar is EN 1.4409 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11 to 17
34
Fatigue Strength, MPa 320 to 430
180
Impact Strength: V-Notched Charpy, J 16 to 21
90
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 840 to 980
490
Tensile Strength: Yield (Proof), MPa 530 to 790
220

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 400
420
Maximum Temperature: Mechanical, °C 850
990
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
19
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.2
3.7
Embodied Energy, MJ/kg 32
52
Embodied Water, L/kg 120
160

Common Calculations

PREN (Pitting Resistance) 16
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 130
140
Resilience: Unit (Modulus of Resilience), kJ/m3 700 to 1610
120
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30 to 35
17
Strength to Weight: Bending, points 26 to 28
18
Thermal Diffusivity, mm2/s 6.7
4.1
Thermal Shock Resistance, points 30 to 35
11

Alloy Composition

Carbon (C), % 0.12 to 0.22
0 to 0.030
Chromium (Cr), % 15 to 17
18 to 20
Iron (Fe), % 77.7 to 83.4
61.7 to 71
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 1.5 to 2.5
9.0 to 12
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.025