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EN 1.4570 Stainless Steel vs. EN 1.4658 Stainless Steel

Both EN 1.4570 stainless steel and EN 1.4658 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 85% of their average alloy composition in common. There are 31 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 EN 1.4570 stainless steel and the bottom bar is EN 1.4658 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
260
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 40
28
Fatigue Strength, MPa 180
530
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
81
Shear Strength, MPa 410
580
Tensile Strength: Ultimate (UTS), MPa 610
900
Tensile Strength: Yield (Proof), MPa 210
730

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 410
460
Maximum Temperature: Mechanical, °C 930
1100
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1370
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 16
13

Otherwise Unclassified Properties

Base Metal Price, % relative 15
25
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.1
4.5
Embodied Energy, MJ/kg 43
61
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 20
49
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
240
Resilience: Unit (Modulus of Resilience), kJ/m3 110
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 20
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), % 17 to 19
26 to 29
Cobalt (Co), % 0
0.5 to 2.0
Copper (Cu), % 1.4 to 1.8
0 to 1.0
Iron (Fe), % 65 to 73.5
50.9 to 63.7
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.6
4.0 to 5.0
Nickel (Ni), % 8.0 to 10
5.5 to 9.5
Nitrogen (N), % 0 to 0.1
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), % 0.15 to 0.35
0 to 0.010