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EN 1.4508 Stainless Steel vs. EN 1.4724 Stainless Steel

Both EN 1.4508 stainless steel and EN 1.4724 stainless steel are iron alloys. They have 80% 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 1.4508 stainless steel and the bottom bar is EN 1.4724 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
16
Fatigue Strength, MPa 210
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
75
Tensile Strength: Ultimate (UTS), MPa 570
550
Tensile Strength: Yield (Proof), MPa 260
280

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 1000
850
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 20
7.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.0
2.0
Embodied Energy, MJ/kg 55
28
Embodied Water, L/kg 160
110

Common Calculations

PREN (Pitting Resistance) 32
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
73
Resilience: Unit (Modulus of Resilience), kJ/m3 170
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
20
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 4.1
5.6
Thermal Shock Resistance, points 17
19

Alloy Composition

Aluminum (Al), % 0
0.7 to 1.2
Carbon (C), % 0 to 0.030
0 to 0.12
Chromium (Cr), % 18 to 20
12 to 14
Iron (Fe), % 61.2 to 69.9
82.2 to 86.6
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 3.0 to 3.5
0
Nickel (Ni), % 9.0 to 12
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0.7 to 1.4
Sulfur (S), % 0 to 0.030
0 to 0.015