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EN 1.4903 Stainless Steel vs. AISI 204 Stainless Steel

Both EN 1.4903 stainless steel and AISI 204 stainless steel are iron alloys. They have 83% 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 1.4903 stainless steel and the bottom bar is AISI 204 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 21
23 to 39
Fatigue Strength, MPa 320 to 330
320 to 720
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
77
Shear Strength, MPa 420
500 to 700
Tensile Strength: Ultimate (UTS), MPa 670 to 680
730 to 1100
Tensile Strength: Yield (Proof), MPa 500
380 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 380
410
Maximum Temperature: Mechanical, °C 650
850
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
15
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 4.0
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
10
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.4
Embodied Energy, MJ/kg 36
35
Embodied Water, L/kg 88
130

Common Calculations

PREN (Pitting Resistance) 13
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
240 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 650
360 to 2940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24
27 to 40
Strength to Weight: Bending, points 22
24 to 31
Thermal Diffusivity, mm2/s 7.0
4.1
Thermal Shock Resistance, points 23
16 to 24

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.080 to 0.12
0 to 0.030
Chromium (Cr), % 8.0 to 9.5
15 to 17
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 87.1 to 90.5
69.6 to 76.4
Manganese (Mn), % 0.3 to 0.6
7.0 to 9.0
Molybdenum (Mo), % 0.85 to 1.1
0
Nickel (Ni), % 0 to 0.4
1.5 to 3.0
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0.15 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Vanadium (V), % 0.18 to 0.25
0