What is AISI 501? (Pearlitic heat-resistant steel)
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In the field of metal materials, AISI 501 stainless steel is a special steel that has received widespread attention, especially for its excellent heat resistance and oxidation resistance. It is a type of pearlite steel with a unique microstructure and excellent performance. For users engaged in the manufacture of stainless steel or high-temperature equipment, it is very helpful to understand the characteristics and application scenarios of AISI 501.
1. What is AISI 501 stainless steel?
AISI 501 is a pearlite heat-resistant steel standardized by the American Iron and Steel Institute (AISI). It is a special alloy steel mainly used for structural parts in high-temperature environments. Its name "pearlite" comes from the pearlite (austenite) structure in its microstructure.
2. Equivalent materials of AISI 501 stainless steel
USA: AISI 501 (ASTM A297, ASTM A351)
Europe: EN 1.4825 (equivalent to DIN 15CrMo5)
Japan: SCM435 (JIS G4105)
China: 15CrMo (GB/T 3077)
Martensitic Stainless Steel AISI 501 Chemical Composition
|
Element |
Weight %
|
|
C
|
0.10 (min)
|
|
Mn
|
1.00
|
|
Si
|
1.00
|
|
Cr
|
4.0-6.0
|
|
P
|
0.04
|
|
S
|
0.03
|
|
Mo
|
0.40-0.65
|
AISI Type 501 Stainless Steel Mechanical Properties
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Properties |
Conditions
|
||
|
T (°C)
|
Treatment
|
||
|
Density (×1000 kg/m3)
|
7.7-8.03
|
25
|
|
|
Poisson's Ratio
|
0.27-0.30
|
25
|
|
|
Elastic Modulus (GPa)
|
190-210
|
25
|
|
|
Tensile Strength (Mpa)
|
485
|
25
|
annealed (bar, plate)
|
|
Yield Strength (Mpa)
|
205
|
||
|
Elongation (%)
|
28
|
||
|
Reduction in Area (%)
|
65
|
||
3. Main characteristics of AISI 501 Hot Forging Stainless Steel
High temperature strength: It can maintain good strength and rigidity in high temperature environment of 500°C to 600°C.
Oxidation resistance: At high temperature, a dense oxide film will be formed on the surface, which effectively prevents oxidation and corrosion.
Good processing performance: Suitable for forging, casting and machining.
Heat resistance stability: At high temperature, the microstructure has high stability.
4. UNS S50100 stainless steel is widely used in the following fields:
Chemical industry: used for high temperature reactors, heat exchangers and pipelines.
Gas turbine: for combustion chambers and high-temperature components.
Aerospace: for engine components and high-temperature structural parts.
Power industry: for boiler components and high-temperature valves.
Oil and gas: for high-temperature and high-pressure equipment.
5. Heat treatment of EN 1.7362 stainless steel
The heat treatment process of AISI 501 steel usually includes the following steps:
Normalizing: heating the material to 850°C to 900°C and then cooling in air.
Tempering: heating the material to 600°C to 700°C and then cooling in air or oil.
Solution treatment: improving its high-temperature properties through high-temperature solution treatment.
GNEE, as a supplier with 18+ years of experience in stainless steel production, we have enough inventory for you to choose from. The AISI 501 stainless steel provided is in the form of tubes, bars, and plates. If you have any questions about products and projects, please contact us in time!
