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EN 1.4508 Stainless Steel vs. EN 1.4736 Stainless Steel

Both EN 1.4508 stainless steel and EN 1.4736 stainless steel are iron alloys. They have 84% 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 1.4736 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
28
Fatigue Strength, MPa 210
230
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 570
580
Tensile Strength: Yield (Proof), MPa 260
310

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
500
Maximum Temperature: Mechanical, °C 1000
1000
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 20
9.0
Density, g/cm3 7.9
7.6
Embodied Carbon, kg CO2/kg material 4.0
2.4
Embodied Energy, MJ/kg 55
35
Embodied Water, L/kg 160
140

Common Calculations

PREN (Pitting Resistance) 32
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
140
Resilience: Unit (Modulus of Resilience), kJ/m3 170
250
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
21
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 4.1
5.6
Thermal Shock Resistance, points 17
21

Alloy Composition

Aluminum (Al), % 0
1.7 to 2.1
Carbon (C), % 0 to 0.030
0 to 0.040
Chromium (Cr), % 18 to 20
17 to 18
Iron (Fe), % 61.2 to 69.9
77 to 81.1
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 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0
0.2 to 0.8