Boiler and pressure vessel steel plates are designed for fabricating pressure equipment operating under elevated temperature and pressure conditions. We supply plates conforming to ASTM A516 Grade 60/65/70, A537 Class 1/2, A387 Grade 11/12/22, EN P265GH, P355GH, GB Q345R, 15CrMoR, 16MnDR, and 09MnNiDR. These grades offer excellent weldability, notch toughness, and resistance to hydrogen-induced cracking. All plates supplied with original mill test certificate and ultrasonic testing report.
AISI 347H (UNS S34709) niobium-stabilized austenitic stainless steel plate for high-temperature service to 800°C. Enhanced creep strength with 0.04-0.10% carbon and Nb stabilization. Ideal for superheater tubes, refinery heaters, and pressure vessels. Thickness 3-100mm, ASTM A240 certified.
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GB 12Cr1MoVR is a high-performance Cr-Mo-V alloy steel plate (N+T) optimized for high-temperature and high-pressure vessel service per GB 713 standards.
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GB 09MnNiDR is a high-performance ultra-low temperature pressure vessel steel (Normalized) offering guaranteed impact toughness at -70°C per GB 3531 standards.
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GB 16MnDR is a specialized low-temperature pressure vessel steel plate (Normalized) offering guaranteed impact toughness at -40°C per GB 3531 / GB 713 standards.
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GB 15CrMoR is a high-performance Chromium-Molybdenum alloy steel plate (N+T condition) designed for high-temperature pressure vessel service per GB 713 standards.
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GB Q345R is a high-yield carbon steel plate (345 MPa) specifically designed for boilers and pressure vessels, offering excellent toughness and weldability per GB 713 standards.
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EN P355NH is a high-yield, normalized fine-grain steel plate (355 MPa yield) optimized for high-integrity pressure vessels and boilers in accordance with EN 10028-3.
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EN P355GH is a certified boiler and pressure vessel steel plate (355 MPa yield) engineered for superior performance and safety in elevated temperature industrial environments.
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EN P265GH is a premier European standard pressure vessel steel plate (265 MPa yield) optimized for heat-resistant service in boilers, tanks, and refinery equipment.
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ASTM A387 Grade 12 is a reliable 1% Cr - 0.5% Mo alloy steel plate designed for moderate high-temperature pressure vessel service with excellent oxidation resistance.
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ASTM A387 Grade 22 is a high-performance 2.25% Cr - 1% Mo alloy steel plate optimized for heavy-duty pressure vessel service in extreme high-temperature environments.
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ASTM A387 Grade 11 is a 1.25% Cr - 0.5% Mo alloy steel plate optimized for high-temperature pressure vessel service, offering superior oxidation and creep resistance.
View Details →Overview of 347H Stainless Steel Plate AISI 347H is a niobium-stabilized austenitic stainless steel specifically designed for high-temperature service, combining excellent oxidation resistance with enhanced creep strength and resistance to intergranular corrosion. Specified under ASTM A240 / ASME SA-240 with…
Overview of GB 12Cr1MoVR Steel Plate GB 12Cr1MoVR is a high-performance chromium-molybdenum-vanadium alloy steel plate specified under the GB 713 standard, specifically engineered for high-pressure and high-temperature service in boilers and pressure vessels. The “12” denotes its nominal carbon content…
Overview of GB 09MnNiDR Steel Plate GB 09MnNiDR is a premium ultra-low temperature pressure vessel steel specified under the GB 3531 standard. Designed for extreme cryogenic service, it is engineered to maintain exceptional structural integrity at temperatures as low as…
Overview of GB 16MnDR Steel Plate GB 16MnDR is the premier low-temperature pressure vessel steel grade specified under the Chinese standard GB 3531 (integrated into GB 713 series). The “16” represents a nominal carbon content of 0.16%, “Mn” indicates its…
Overview of GB 15CrMoR Steel Plate GB 15CrMoR is a specialized chromium-molybdenum alloy steel plate specified under the GB 713 standard, designed primarily for boilers and pressure vessels operating at elevated temperatures. The “15” indicates the nominal carbon content (0.15%),…
Overview of GB Q345R Steel Plate GB Q345R is the foundational steel grade for boilers and pressure vessels in the Chinese industrial standard GB 713. The “Q” denotes Yield Strength, “345” represents the minimum yield strength of 345 MPa, and…
Overview of EN P355NH Steel Plate EN P355NH is a high-performance, normalized fine-grain structural steel specified under the EN 10028-3 standard. Designed specifically for pressure purposes, it offers a minimum yield strength of 355 MPa. The “NH” designation indicates that…
Overview of EN P355GH Pressure Vessel Steel Plate EN P355GH is a specialized, high-performance pressure vessel steel grade specified under the EN 10028-2 European standard. The “P” signifies its primary use in pressure equipment, “355” represents its minimum yield strength…
Overview of EN P265GH Steel Plate EN P265GH is a high-quality pressure vessel steel specified under the EN 10028-2 standard. It is a non-alloy heat-resistant steel designed for the fabrication of boilers and pressure vessels operating at elevated temperatures. With…
Overview of ASTM A387 Grade 12 Steel Plate ASTM A387 Grade 12 is a high-quality chrome-molybdenum alloy steel plate specifically designed for use in weldable pressure vessels and industrial boilers operating at elevated temperatures. Specified under the ASTM A387/A387M standard,…
Overview of ASTM A387 Grade 22 Steel Plate ASTM A387 Grade 22 is a high-performance chrome-molybdenum alloy steel plate specifically engineered for use in weldable pressure vessels and industrial boilers operating at high temperatures. Specified under the ASTM A387/A387M standard,…
Overview of ASTM A387 Grade 11 Steel Plate ASTM A387 Grade 11 is a high-quality chrome-molybdenum alloy steel plate specifically designed for use in weldable pressure vessels and industrial boilers operating at elevated temperatures. Specified under the ASTM A387/A387M standard,…
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