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EN 1.4509 Stainless Steel vs. AISI 202 Stainless Steel

Both EN 1.4509 stainless steel and AISI 202 stainless steel are iron alloys. They have 87% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4509 stainless steel and the bottom bar is AISI 202 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
210 to 300
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 21
14 to 45
Fatigue Strength, MPa 170
290 to 330
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 330
490 to 590
Tensile Strength: Ultimate (UTS), MPa 530
700 to 980
Tensile Strength: Yield (Proof), MPa 260
310 to 580

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 570
410
Maximum Temperature: Mechanical, °C 890
910
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 10
17

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 13
13
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 41
40
Embodied Water, L/kg 120
150

Common Calculations

PREN (Pitting Resistance) 18
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
120 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 180
250 to 840
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
25 to 35
Strength to Weight: Bending, points 19
23 to 29
Thermal Diffusivity, mm2/s 6.8
4.0
Thermal Shock Resistance, points 19
15 to 21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 17.5 to 18.5
17 to 19
Iron (Fe), % 77.8 to 82.1
63.5 to 71.5
Manganese (Mn), % 0 to 1.0
7.5 to 10
Nickel (Ni), % 0
4.0 to 6.0
Niobium (Nb), % 0.3 to 1.0
0
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0.1 to 0.6
0