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EN 1.4959 Stainless Steel vs. EN 1.4301 Stainless Steel

Both EN 1.4959 stainless steel and EN 1.4301 stainless steel are iron alloys. They have 74% 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 1.4959 stainless steel and the bottom bar is EN 1.4301 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
14 to 46
Fatigue Strength, MPa 170
200 to 330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 430
430 to 550
Tensile Strength: Ultimate (UTS), MPa 630
610 to 900
Tensile Strength: Yield (Proof), MPa 190
220 to 570

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 510
420
Maximum Temperature: Mechanical, °C 1090
940
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1350
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 15
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 31
15
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
3.0
Embodied Energy, MJ/kg 76
43
Embodied Water, L/kg 200
140

Common Calculations

PREN (Pitting Resistance) 21
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
110 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 96
120 to 820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
22 to 32
Strength to Weight: Bending, points 20
20 to 27
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 15
14 to 20

Alloy Composition

Aluminum (Al), % 0.25 to 0.65
0
Carbon (C), % 0.050 to 0.1
0 to 0.070
Chromium (Cr), % 19 to 22
17.5 to 19.5
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 39.4 to 50.5
66.8 to 74.5
Manganese (Mn), % 0 to 1.5
0 to 2.0
Nickel (Ni), % 30 to 34
8.0 to 10.5
Nitrogen (N), % 0 to 0.030
0 to 0.1
Phosphorus (P), % 0 to 0.015
0 to 0.045
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 0.25 to 0.65
0