ASTM A387 Grade 11 Class 1 Boiler and Pressure Vessel Steel Plate

ASTM A387 Grade 11 Class 1 is a chromium-molybdenum alloy steel plate for welded boilers and pressure vessels in high-temperature service, offering good high-temp strength and creep resistance with 1.25% Cr and 0.5% Mo; Class 1 signifies a lower tensile strength range (around 60-85 ksi) compared to Class 2, with both sharing the same chemical makeup but differing in mechanical properties and impact toughness requirements, suitable for petrochemical, power, and hydrogenation applications.

Petrochemical Industry: Hydrogenation reactors, synthesis towers, storage tanks, and heat exchangers in oil refineries.

Power Generation: Boilers and pressure piping in thermal power plants.

Chemical Processing: Autoclaves and high-pressure chemical containers.

Oil & Gas: Onshore and offshore equipment exposed to high pressure and corrosive conditions.

ASTM A387 Grade 11 Class1(A387GR11CL1) Boiler steel plate,ASTM A387 Grade 11 Class1(A387GR11CL1) Pressure Vessel Steel plate, ASTM A387 Grade 11 Class1(A387GR11CL1) Storage Tanks Steel plate. ASTM A387 Grade 11 Class1(A387GR11CL1) Heat Exchanger Steel Pla

UT(Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V-Notch Impact Test, The Third Party Test (such as SGS Test), Coated or Shot Blasting and Painting.

High-Temperature Strength: The chromium and molybdenum content provides superior tensile strength at elevated temperatures.

Corrosion Resistance: Offers good resistance to hydrogen corrosion and oxidation.

Weldability: Good weldability, even in hydrogen environments, with low temper embrittlement.

Creep Resistance: Handles sustained stress at high temperatures effectively.

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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.

What is A387 grade 11 material?

The ASTM A387 specification is the Standard Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Molybdenum intended primarily for use in welded boilers and pressure vessels designed for elevated temperature service. GNEE can supply A387 Grade 11 to the tension test requirements for Class 1 and/or Class 2.

What is ASTM A387 Grade 11 equivalent to?

ASME SA387 grade 11

ASTM A387 grade 11 equivalent steel is ASME SA387 grade 11. ASTM A387 grade 11 covers A387 grade 11 class 1 and A387 grade 11 class 2, which are equivalent to ASME SA387 grade 11 class 1 and SA387 grade 11 class 2 respectively.

What is the difference between SA 387 Grade 11 CL 1 and Class 2?

The difference between SA 387 Grade 11 Class 1 and Class 2 Plate lies in their mechanical properties. However, they both have the same chemical composition. The tensile strength and yield strength of class 2 material is higher than that of class 1, whereas the elongation for class 1 is higher compared to class 2.