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EN 1.4306 Stainless Steel vs. EN 1.4959 Stainless Steel

Both EN 1.4306 stainless steel and EN 1.4959 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, 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 1.4959 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 14 to 45
40
Fatigue Strength, MPa 190 to 330
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 400 to 550
430
Tensile Strength: Ultimate (UTS), MPa 580 to 900
630
Tensile Strength: Yield (Proof), MPa 210 to 570
190

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 420
510
Maximum Temperature: Mechanical, °C 960
1090
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1380
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 16
31
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 3.2
5.4
Embodied Energy, MJ/kg 45
76
Embodied Water, L/kg 150
200

Common Calculations

PREN (Pitting Resistance) 20
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 200
190
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 820
96
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 32
22
Strength to Weight: Bending, points 20 to 27
20
Thermal Diffusivity, mm2/s 4.0
3.2
Thermal Shock Resistance, points 13 to 20
15

Alloy Composition

Aluminum (Al), % 0
0.25 to 0.65
Carbon (C), % 0 to 0.030
0.050 to 0.1
Chromium (Cr), % 18 to 20
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 64.8 to 72
39.4 to 50.5
Manganese (Mn), % 0 to 2.0
0 to 1.5
Nickel (Ni), % 10 to 12
30 to 34
Nitrogen (N), % 0 to 0.1
0 to 0.030
Phosphorus (P), % 0 to 0.045
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 0
0.25 to 0.65