A387 Grade 12 Class 2 Steel for Boilers in China steel plate

In the realm of pressure vessel and boiler construction, A387Gr12CL2/A387 Grade 12 Class 2 chromium-molybdenum alloy steel plate stands as a testament to superior engineering excellence. This grade of steel, specifically designed for high-temperature and pressure applications, offers unparalleled strength, corrosion resistance, and durability.

Manufactured and supplied by GNEE Steel , A387Gr12CL2 is a premium choice for a wide array of industries requiring the utmost in performance and reliability.

The A387Gr12CL2 steel plate boasts a meticulously balanced chemical composition that contributes to its exceptional properties. Key elements and their respective ranges include:

• - Carbon (C): 0.05% - 0.17%
• - Silicon (Si): 0.15% - 0.40% (note: some sources indicate 0.15% - 0.55%, but for clarity, the stricter range is emphasized here)
• - Manganese (Mn): 0.40% - 0.65%
• - Phosphorus (P): ≤ 0.025%
• - Sulfur (S): ≤ 0.035%
• - Chromium (Cr): 0.80% - 1.15%
• - Molybdenum (Mo): 0.45% - 0.60%

This precise blend ensures optimal mechanical properties and resistance to harsh environments.

The mechanical prowess of A387Gr12CL2 is unmatched, making it ideal for demanding applications. Key mechanical properties include:

- Tensile Strength: 380 MPa - 550 MPa (55,163 psi - 79,757 psi)

- Yield Strength: ≥ 230 MPa (33,227 psi)

- Elongation (200 mm): ≥ 18%

- Elongation (50 mm): ≥ 22%

- Charpy V-Notch Impact Energy: Average of three specimens ≥ 54 J, with one specimen allowed to be ≥ 47 J

These robust mechanical properties ensure that A387Gr12CL2 can withstand extreme temperatures and pressures while maintaining structural integrity.

GNEE Steel offers A387Gr12CL2 steel plates in various heat treatment states to suit customer requirements:

- Normalized (N)

- Normalized and Tempered (NT)

- Quenched and Tempered (QT)

The selection of heat treatment state depends on the specific application and desired properties.

GNEE Steel caters to a diverse range of size requirements, ensuring that A387Gr12CL2 steel plates are available in custom dimensions to suit any project. Typical size ranges include:

- Thickness: 8 mm - 700 mm

- Width: 1500 mm - 4020 mm

- Length: 3000 mm - 27000 mm

Impact testing is a crucial aspect of ensuring the quality and safety of A387Gr12CL2 steel plates. The Charpy V-Notch impact test is performed to assess the material's resistance to sudden loading and fracture at low temperatures. The high impact energy values demonstrated by A387Gr12CL2 ensure excellent toughness and resistance to brittle fracture.

ASTM A387 Grade 12 Class 2 steel plate is a reliable and proven solution for boilers and pressure vessels operating under high temperature and pressure. With excellent mechanical properties, weldability, and long-term stability, it remains a top choice for global energy and process industries.

If you are looking for a professional China steel plate supplier of A387 Grade 12 Class 2 for boiler projects, GNEE Steel is ready to support you with technical expertise, stable quality, and fast delivery.

📩 Contact GNEE Steel today for specifications, pricing, and customized solutions for your boiler and pressure vessel steel plate requirements.

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What is A387 gr 12 material?

A387 Grade 12 Class 2 is a high quality chrome molybdenum steel which is ideal for elevated temperature service and offers excellent anti corrosion characteristics. The steel has a wide range of uses including industrial boilers and pressure vessels, especially in environments where high temperature levels are common.

What is SA 387 11 cl2 material?

chrome-moly alloy

11 CL. 2 Plate is a pressure vessel grade steel plate that is used in high-temperature applications. It is made of a chrome-moly alloy that contains molybdenum and chromium.

GNEE Steel also supplies a variety of boilers and pressure vessel steel plates, such as A204 Grade B,A515 Grade 70,A537 Class 1,SA387 Grade 11 Class 1,P265GH,S537 Class 2,P355Q,P275N,P355N,P690Q,Q345R, etc. If you want to know more about other types of steel plates, you can call the consultation hotline at +8615824687445 or send an email to alloy@gneesteelgroup.com. You are welcome to consult us, and we are very willing to answer your questions.