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EN 1.4658 Stainless Steel vs. EN 1.4529 Stainless Steel

Both EN 1.4658 stainless steel and EN 1.4529 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 80% 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 1.4529 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
220
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 28
43
Fatigue Strength, MPa 530
310
Impact Strength: V-Notched Charpy, J 110
90
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
80
Shear Strength, MPa 580
520
Tensile Strength: Ultimate (UTS), MPa 900
750
Tensile Strength: Yield (Proof), MPa 730
340

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 460
420
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1410
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
33
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 4.5
6.2
Embodied Energy, MJ/kg 61
84
Embodied Water, L/kg 200
200

Common Calculations

PREN (Pitting Resistance) 49
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
260
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
280
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32
26
Strength to Weight: Bending, points 26
23
Thermal Diffusivity, mm2/s 4.3
3.2
Thermal Shock Resistance, points 24
17

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 26 to 29
19 to 21
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
0.5 to 1.5
Iron (Fe), % 50.9 to 63.7
42.7 to 50.4
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 4.0 to 5.0
6.0 to 7.0
Nickel (Ni), % 5.5 to 9.5
24 to 26
Nitrogen (N), % 0.3 to 0.5
0.15 to 0.25
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.010