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AISI 441 Stainless Steel vs. EN 1.4458 Stainless Steel

Both AISI 441 stainless steel and EN 1.4458 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 441 stainless steel and the bottom bar is EN 1.4458 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
150
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
34
Fatigue Strength, MPa 180
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 470
510
Tensile Strength: Yield (Proof), MPa 270
190

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 550
430
Maximum Temperature: Mechanical, °C 910
1100
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
16
Thermal Expansion, µm/m-K 10
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
30
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.8
5.4
Embodied Energy, MJ/kg 41
75
Embodied Water, L/kg 130
200

Common Calculations

PREN (Pitting Resistance) 19
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
140
Resilience: Unit (Modulus of Resilience), kJ/m3 190
89
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 6.1
4.2
Thermal Shock Resistance, points 16
12

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 17.5 to 19.5
19 to 22
Copper (Cu), % 0
0 to 2.0
Iron (Fe), % 76 to 82.2
40.2 to 53
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 0 to 1.0
26 to 30
Niobium (Nb), % 0.3 to 0.9
0
Nitrogen (N), % 0 to 0.030
0 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.025
Titanium (Ti), % 0.1 to 0.5
0