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EN 1.4662 Stainless Steel vs. EN 1.4959 Stainless Steel

Both EN 1.4662 stainless steel and EN 1.4959 stainless steel are iron alloys. They have 71% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4662 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, % 28
40
Fatigue Strength, MPa 430 to 450
170
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 520 to 540
430
Tensile Strength: Ultimate (UTS), MPa 810 to 830
630
Tensile Strength: Yield (Proof), MPa 580 to 620
190

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 440
510
Maximum Temperature: Mechanical, °C 1090
1090
Melting Completion (Liquidus), °C 1430
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 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 16
31
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 3.2
5.4
Embodied Energy, MJ/kg 45
76
Embodied Water, L/kg 170
200

Common Calculations

PREN (Pitting Resistance) 33
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
190
Resilience: Unit (Modulus of Resilience), kJ/m3 840 to 940
96
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29 to 30
22
Strength to Weight: Bending, points 25
20
Thermal Diffusivity, mm2/s 3.9
3.2
Thermal Shock Resistance, points 22
15

Alloy Composition

Aluminum (Al), % 0
0.25 to 0.65
Carbon (C), % 0 to 0.030
0.050 to 0.1
Chromium (Cr), % 23 to 25
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0.1 to 0.8
0 to 0.5
Iron (Fe), % 62.6 to 70.2
39.4 to 50.5
Manganese (Mn), % 2.5 to 4.0
0 to 1.5
Molybdenum (Mo), % 1.0 to 2.0
0
Nickel (Ni), % 3.0 to 4.5
30 to 34
Nitrogen (N), % 0.2 to 0.3
0 to 0.030
Phosphorus (P), % 0 to 0.035
0 to 0.015
Silicon (Si), % 0 to 0.7
0 to 0.7
Sulfur (S), % 0 to 0.0050
0 to 0.010
Titanium (Ti), % 0
0.25 to 0.65