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EN 1.4658 Stainless Steel vs. EN 1.4659 Stainless Steel

Both EN 1.4658 stainless steel and EN 1.4659 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 79% 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 1.4658 stainless steel and the bottom bar is EN 1.4659 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
260
Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 28
49
Fatigue Strength, MPa 530
460
Impact Strength: V-Notched Charpy, J 110
94
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
81
Shear Strength, MPa 580
640
Tensile Strength: Ultimate (UTS), MPa 900
900
Tensile Strength: Yield (Proof), MPa 730
480

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 460
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1450
1480
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 16
12
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 25
37
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 4.5
6.5
Embodied Energy, MJ/kg 61
89
Embodied Water, L/kg 200
220

Common Calculations

PREN (Pitting Resistance) 49
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
370
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
550
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32
31
Strength to Weight: Bending, points 26
25
Thermal Diffusivity, mm2/s 4.3
3.2
Thermal Shock Resistance, points 24
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 26 to 29
23 to 25
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
1.0 to 2.0
Iron (Fe), % 50.9 to 63.7
35.7 to 45.7
Manganese (Mn), % 0 to 1.5
2.0 to 4.0
Molybdenum (Mo), % 4.0 to 5.0
5.5 to 6.5
Nickel (Ni), % 5.5 to 9.5
21 to 23
Nitrogen (N), % 0.3 to 0.5
0.35 to 0.5
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.7
Sulfur (S), % 0 to 0.010
0 to 0.010
Tungsten (W), % 0
1.5 to 2.5