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EN 1.4580 Stainless Steel vs. EN 1.4658 Stainless Steel

Both EN 1.4580 stainless steel and EN 1.4658 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. 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 1.4580 stainless steel and the bottom bar is EN 1.4658 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
260
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 40
28
Fatigue Strength, MPa 210
530
Impact Strength: V-Notched Charpy, J 90
110
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
81
Shear Strength, MPa 430
580
Tensile Strength: Ultimate (UTS), MPa 620
900
Tensile Strength: Yield (Proof), MPa 250
730

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 480
460
Maximum Temperature: Mechanical, °C 950
1100
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 22
25
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.3
4.5
Embodied Energy, MJ/kg 60
61
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 25
49
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
240
Resilience: Unit (Modulus of Resilience), kJ/m3 150
1280
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
32
Strength to Weight: Bending, points 21
26
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 14
24

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 16.5 to 18.5
26 to 29
Cobalt (Co), % 0
0.5 to 2.0
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 61.4 to 71
50.9 to 63.7
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 2.0 to 2.5
4.0 to 5.0
Nickel (Ni), % 10.5 to 13.5
5.5 to 9.5
Niobium (Nb), % 0 to 1.0
0
Nitrogen (N), % 0
0.3 to 0.5
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.010