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EN 1.4658 Stainless Steel vs. EN 1.4306 Stainless Steel

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 460
420
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 25
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.5
3.2
Embodied Energy, MJ/kg 61
45
Embodied Water, L/kg 200
150

Common Calculations

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

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 26 to 29
18 to 20
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 50.9 to 63.7
64.8 to 72
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 5.5 to 9.5
10 to 12
Nitrogen (N), % 0.3 to 0.5
0 to 0.1
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015