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EN 1.4537 Stainless Steel vs. EN 1.4335 Stainless Steel

Both EN 1.4537 stainless steel and EN 1.4335 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 89% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4537 stainless steel and the bottom bar is EN 1.4335 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
170
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 42
45
Fatigue Strength, MPa 290
210
Impact Strength: V-Notched Charpy, J 91
90
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 80
79
Shear Strength, MPa 480
400
Tensile Strength: Ultimate (UTS), MPa 700
570
Tensile Strength: Yield (Proof), MPa 330
230

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 450
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1410
Melting Onset (Solidus), °C 1390
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 14
14
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 34
25
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 6.1
4.4
Embodied Energy, MJ/kg 84
62
Embodied Water, L/kg 220
190

Common Calculations

PREN (Pitting Resistance) 46
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
210
Resilience: Unit (Modulus of Resilience), kJ/m3 270
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24
20
Strength to Weight: Bending, points 22
19
Thermal Diffusivity, mm2/s 3.7
3.7
Thermal Shock Resistance, points 15
12

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.020
Chromium (Cr), % 24 to 26
24 to 26
Copper (Cu), % 1.0 to 2.0
0
Iron (Fe), % 36.3 to 46.1
49.4 to 56
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 4.7 to 5.7
0 to 0.2
Nickel (Ni), % 24 to 27
20 to 22
Nitrogen (N), % 0.17 to 0.25
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.7
0 to 0.25
Sulfur (S), % 0 to 0.010
0 to 0.010