SA387 Grade 11 Class 1 for heat exchanger
Products Description
SA387Gr11CL1 steel plate, also known as ASTM A387 Grade 11 Class 1 steel plate, is an alloy steel plate specially designed for high-temperature and high-pressure environments. It belongs to the 1.25Cr-0.5Mo series pearlitic heat-resistant steel and exhibits excellent high-temperature strength, oxidation resistance and sulfide corrosion resistance under working conditions below 500°C.
Chemical Composition Requirements
|
Element |
Heat |
Product |
|
C |
0.05-0.17 |
0.04-0.17 |
|
Mn |
0.40-0.65 |
0.35-0.73 |
|
P |
≤0.025 |
≤0.025 |
|
S |
≤0.025 |
≤0.025 |
|
Si |
0.50-0.80 |
0.44-0.86 |
|
Cr |
1.00-1.50 |
0.94-1.56 |
|
Mo |
0.45-0.65 |
0.40-0.70 |
Mechanical Properties of SA387Gr11CL1 Steel Plate
|
ASME SA-387/ ASTM A387 |
|
|
Tensile Strength |
415-585 |
|
Yield Strength |
240 |
|
Elongation in |
19 |
|
Elongation in |
22 |
|
Reduction of |
- |
Other Mechanical Properties
SA387Gr11CL1 steel plate has excellent mechanical properties, specifically as follows:
High-temperature strength: It can maintain high yield strength and tensile strength at high temperatures, ensuring the structural integrity and safety of equipment under high-temperature working conditions.
Creep resistance: It can resist creep deformation under high temperature and continuous stress, that is, the slow plastic deformation of materials under long-term high temperature, which is crucial for maintaining the dimensional stability and long-term reliability of equipment.
Elongation: The ratio of the elongation before fracture to the original length in the tensile test is relatively high, which means it can absorb energy well when subjected to external forces and avoid sudden fracture.
Impact toughness: It can maintain good performance under low temperature or impact load, preventing accidents such as sudden fracture.
Application Fields of SA387Gr11CL1 Steel Plates
Petroleum and Chemical Industry
- Reactors and heat exchangers: Used in high-temperature reaction vessels of chemical plants for ammonia synthesis, methanol production, etc.
- Separators and pipelines: Resist corrosion from corrosive media such as hydrogen sulfide (H₂S).
Power Industry
- Boilers and steam turbines: Manufacture superheater, reheater tube sheets and high-pressure steam pipelines.
- Nuclear energy facilities: Serve as auxiliary structural materials for nuclear reactor pressure vessels.
Other Fields
- Fertilizer production: Internal components of urea synthesis towers.
- Environmental protection equipment: High-temperature section components of waste incinerators.
If you want to learn more about GNEE's products, you can send an email to alloy@gneesteelgroup.com. We are more than happy to assist you.
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