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EN 1.4306 Stainless Steel vs. EN 1.4658 Stainless Steel

Both EN 1.4306 stainless steel and EN 1.4658 stainless steel are iron alloys. 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 1.4306 stainless steel and the bottom bar is EN 1.4658 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
260
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 14 to 45
28
Fatigue Strength, MPa 190 to 330
530
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
81
Shear Strength, MPa 400 to 550
580
Tensile Strength: Ultimate (UTS), MPa 580 to 900
900
Tensile Strength: Yield (Proof), MPa 210 to 570
730

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
460
Maximum Temperature: Mechanical, °C 960
1100
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
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 16
25
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.2
4.5
Embodied Energy, MJ/kg 45
61
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 20
49
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 200
240
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 820
1280
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 32
32
Strength to Weight: Bending, points 20 to 27
26
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 13 to 20
24

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 18 to 20
26 to 29
Cobalt (Co), % 0
0.5 to 2.0
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 64.8 to 72
50.9 to 63.7
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 10 to 12
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 to 0.015
0 to 0.010