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AISI 204 Stainless Steel vs. EN 1.4150 Stainless Steel

Both AISI 204 stainless steel and EN 1.4150 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common.

For each property being compared, the top bar is AISI 204 stainless steel and the bottom bar is EN 1.4150 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 330
220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23 to 39
20
Fatigue Strength, MPa 320 to 720
270
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 500 to 700
460
Tensile Strength: Ultimate (UTS), MPa 730 to 1100
730
Tensile Strength: Yield (Proof), MPa 380 to 1080
430

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
390
Maximum Temperature: Mechanical, °C 850
840
Melting Completion (Liquidus), °C 1410
1420
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
23
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 10
8.5
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 2.4
2.8
Embodied Energy, MJ/kg 35
42
Embodied Water, L/kg 130
120

Common Calculations

PREN (Pitting Resistance) 20
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240 to 250
120
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 2940
470
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 40
27
Strength to Weight: Bending, points 24 to 31
24
Thermal Diffusivity, mm2/s 4.1
6.2
Thermal Shock Resistance, points 16 to 24
27

Alloy Composition

Carbon (C), % 0 to 0.030
0.45 to 0.6
Chromium (Cr), % 15 to 17
15 to 16.5
Iron (Fe), % 69.6 to 76.4
79 to 82.8
Manganese (Mn), % 7.0 to 9.0
0 to 0.8
Molybdenum (Mo), % 0
0.2 to 0.4
Nickel (Ni), % 1.5 to 3.0
0 to 0.4
Nitrogen (N), % 0.15 to 0.3
0.050 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
1.3 to 1.7
Sulfur (S), % 0 to 0.030
0 to 0.010
Vanadium (V), % 0
0.2 to 0.4