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EN 1.4526 Stainless Steel vs. EN 1.4903 Stainless Steel

Both EN 1.4526 stainless steel and EN 1.4903 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4526 stainless steel and the bottom bar is EN 1.4903 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 25
20 to 21
Fatigue Strength, MPa 230
320 to 330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Shear Strength, MPa 340
420
Tensile Strength: Ultimate (UTS), MPa 540
670 to 680
Tensile Strength: Yield (Proof), MPa 330
500

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 490
380
Maximum Temperature: Mechanical, °C 880
650
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
26
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
4.0

Otherwise Unclassified Properties

Base Metal Price, % relative 13
7.0
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.9
2.6
Embodied Energy, MJ/kg 41
36
Embodied Water, L/kg 120
88

Common Calculations

PREN (Pitting Resistance) 21
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 280
650
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
24
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 8.1
7.0
Thermal Shock Resistance, points 19
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0 to 0.080
0.080 to 0.12
Chromium (Cr), % 16 to 18
8.0 to 9.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 77.4 to 83.1
87.1 to 90.5
Manganese (Mn), % 0 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 0.8 to 1.4
0.85 to 1.1
Nickel (Ni), % 0
0 to 0.4
Niobium (Nb), % 0.1 to 1.0
0.060 to 0.1
Nitrogen (N), % 0 to 0.040
0.030 to 0.070
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015
Vanadium (V), % 0
0.18 to 0.25