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EN 1.4590 Stainless Steel vs. EN 1.4941 Stainless Steel

Both EN 1.4590 stainless steel and EN 1.4941 stainless steel are iron alloys. They have 87% 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 1.4590 stainless steel and the bottom bar is EN 1.4941 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 26
39
Fatigue Strength, MPa 190
180
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 310
400
Tensile Strength: Ultimate (UTS), MPa 480
590
Tensile Strength: Yield (Proof), MPa 270
210

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 470
520
Maximum Temperature: Mechanical, °C 860
940
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 26
16
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 11
16
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.5
3.3
Embodied Energy, MJ/kg 37
47
Embodied Water, L/kg 120
140

Common Calculations

PREN (Pitting Resistance) 17
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
180
Resilience: Unit (Modulus of Resilience), kJ/m3 190
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 7.0
4.3
Thermal Shock Resistance, points 17
13

Alloy Composition

Boron (B), % 0
0.0015 to 0.0050
Carbon (C), % 0 to 0.030
0.040 to 0.080
Chromium (Cr), % 16 to 17.5
17 to 19
Iron (Fe), % 79.7 to 83.7
65.1 to 73.6
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 0
9.0 to 12
Niobium (Nb), % 0.35 to 0.55
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015
Titanium (Ti), % 0
0.4 to 0.8
Zirconium (Zr), % 0 to 0.15
0