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EN 1.4658 Stainless Steel vs. EN 1.4424 Stainless Steel

Both EN 1.4658 stainless steel and EN 1.4424 stainless steel are iron alloys. They have 85% 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 1.4424 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
230
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 28
28
Fatigue Strength, MPa 530
350 to 370
Impact Strength: V-Notched Charpy, J 110
90 to 91
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
78
Shear Strength, MPa 580
520
Tensile Strength: Ultimate (UTS), MPa 900
800
Tensile Strength: Yield (Proof), MPa 730
480 to 500

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 460
420
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
13
Thermal Expansion, µm/m-K 13
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
15
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.5
3.4
Embodied Energy, MJ/kg 61
46
Embodied Water, L/kg 200
140

Common Calculations

PREN (Pitting Resistance) 49
29
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
580 to 640
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32
29
Strength to Weight: Bending, points 26
25
Thermal Diffusivity, mm2/s 4.3
3.5
Thermal Shock Resistance, points 24
23

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 26 to 29
18 to 19
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 50.9 to 63.7
68.6 to 72.4
Manganese (Mn), % 0 to 1.5
1.2 to 2.0
Molybdenum (Mo), % 4.0 to 5.0
2.5 to 3.0
Nickel (Ni), % 5.5 to 9.5
4.5 to 5.2
Nitrogen (N), % 0.3 to 0.5
0.050 to 0.1
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.5
1.4 to 2.0
Sulfur (S), % 0 to 0.010
0 to 0.015