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EN 1.4736 Stainless Steel vs. S32050 Stainless Steel

Both EN 1.4736 stainless steel and S32050 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 66% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4736 stainless steel and the bottom bar is S32050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
220
Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 28
46
Fatigue Strength, MPa 230
340
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
81
Shear Strength, MPa 370
540
Tensile Strength: Ultimate (UTS), MPa 580
770
Tensile Strength: Yield (Proof), MPa 310
370

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 500
440
Maximum Temperature: Mechanical, °C 1000
1100
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 21
12
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
31
Density, g/cm3 7.6
8.0
Embodied Carbon, kg CO2/kg material 2.4
6.0
Embodied Energy, MJ/kg 35
81
Embodied Water, L/kg 140
210

Common Calculations

PREN (Pitting Resistance) 18
48
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
290
Resilience: Unit (Modulus of Resilience), kJ/m3 250
330
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21
27
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 5.6
3.3
Thermal Shock Resistance, points 21
17

Alloy Composition

Aluminum (Al), % 1.7 to 2.1
0
Carbon (C), % 0 to 0.040
0 to 0.030
Chromium (Cr), % 17 to 18
22 to 24
Copper (Cu), % 0
0 to 0.4
Iron (Fe), % 77 to 81.1
43.1 to 51.8
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0
6.0 to 6.6
Nickel (Ni), % 0
20 to 23
Nitrogen (N), % 0
0.21 to 0.32
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0.2 to 0.8
0