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Help CenterSteel Sheet & Plate & Pressure Vessel Steel Plate，SA516 Gr60/65/70, SA285 GrC, SA387 Gr12/22, SA203 E、P265GH、P355GH、P355NL、P460NH、P500Q
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1. Product Introduction
Pressure vessel steel plate refers to special medium and heavy steel plate designed for pressure-bearing special equipment. It adopts killed steel smelting with secondary refining and vacuum degassing technology, strictly controlling sulfur, phosphorus and other hazardous impurities to acquire uniform and compact internal microstructure.
This product is specially used for manufacturing boiler drums, pressure storage tanks, chemical reactors, heat exchangers, LNG cryogenic tanks, hydrogenation units and other pressure-bearing facilities that operate under long-term high temperature, high pressure, alternating loads and corrosive media. It acts as essential safety structural material widely applied in petrochemical, power generation, new energy and coal chemical sectors.
Marking code explanation: R stands for pressure vessel service; D represents low-temperature usage; CR denotes HIC (Hydrogen Induced Cracking) resistant property. The product line covers full working scenarios including ambient temperature, low temperature, high temperature, hydrogen service and ultra-low temperature environments.
Company Supply Information
Manufacturer & Supplier: Shandong Shoukun Metal Materials Co., Ltd.Loading Port: Tianjin PortProduction & Delivery Cycle: 5-7 working daysPayment Terms: 30% TT deposit in advance, 70% balance remitted against B/L copy; Letter of Credit is not acceptable.
2. Applicable Technical Standards
Domestic Chinese Standards (Mainstream for Domestic Projects)
GB/T 713.1~713.6-2023 Steel plates and strips for pressure equipment (latest national standard)
GB/T 3531-2019 Low alloy steel sheets for low-temperature pressure vessels
GB 150 Pressure Vessels (supporting material specification for equipment design)
GB/T 709 Dimensions, form, mass and permissible tolerances of steel plates
International Standards (For Overseas Export Orders)
ASTM & ASME Standards: SA516 Gr60/65/70, SA285 GrC, SA387 Gr12/22, SA203 E (9% Nickel Steel)
European EN Standards: P265GH, P355GH, P460NH, P355NL, P500Q
Japanese JIS Standard: JIS G3115; German DIN Standard: DIN 17175
3. Main Steel Grades & Corresponding Service Conditions
3.1 Normal Temperature Carbon Steel Plates (Economical General Type)
Q245RMinimum yield strength ≥245MPa, tensile strength range 400~520MPa. Suitable for medium and low-pressure boiler drums under 350℃, conventional water & steam storage tanks, atmospheric heat exchangers. Delivery status: hot rolled or controlled rolling.
Q345RMost popular general pressure vessel steel plate in China. Yield strength ≥345MPa, tensile strength 510~640MPa, Charpy V-notch impact energy ≥34J at -20℃. Widely adopted for petrochemical storage tanks, waste heat boilers, tube sheets and atmospheric reaction kettles. HIC resistant variant Q345R(HIC) is supplied for sulfur-containing oil and gas facilities.
3.2 Low Temperature Resistant Vessel Plates (Anti-Brittle for LPG, LN2, LNG)
16MnDRImpact energy ≥47J at -40℃, thickness range 8~120mm, delivered under normalized condition. Applied to LPG storage tanks, low-temperature methanol processing equipment and outdoor pressure vessels in cold northern regions.
09MnNiDRNickel alloy grain refinement ensures stable toughness at -70℃, ideal for liquid nitrogen, liquid oxygen cryogenic tanks and low-temperature separation devices.
06Ni9DR (9% Nickel Steel)Exclusive ultra-low temperature steel for -196℃ working environment, core material of LNG storage tanks with outstanding anti-brittle fracture performance under extreme cold. Max available thickness 150mm, quenched and tempered delivery.
3.3 High Temperature Heat Resistant Cr-Mo Alloy Plates (Oil Refining Hydrogenation & High-Temp Boilers)
15CrMoRSuperior long-term high-temperature creep resistance up to 550℃, excellent resistance to hydrogen corrosion. Used for hydrogenation reactors, high-temperature fractionating towers and power station boiler drums. Delivery state: normalized plus tempered.
14Cr1MoR / 12Cr2Mo1RSpecial hydrogen resistant steel for hydrogen process equipment, applicable to heavy oil hydrogenation and high-pressure chemical fertilizer plants, featuring strong resistance to hydrogen induced cracking and sulfide corrosion.
12Cr1MoVRSuitable for power station high-temperature headers and heat exchangers, stable mechanical performance under long-term 580℃ continuous operation.
3.4 High Strength Quenched & Tempered Plates (Lightweight High-Pressure Equipment)
Grades Q420R, Q460R, Q690DR, supplied in quenched & tempered condition with yield strength 420~690MPa, effectively reducing equipment wall thickness. Used for high-pressure reactors, offshore platform pressure-bearing structures and large high-pressure hydrogen storage tanks.
3.5 Extra Thick Heavy-Duty Vessel Plates
13MnNiMoR, 18MnMoNbR, maximum thickness up to 250mm. For large boiler drums, nuclear power conventional island pressure shells and oversized petrochemical tower vessels.
4. Dimension & Technical Parameters
Thickness: 6mm to 250mm; regular stock range 8~100mm, extra-thick plates available via customized rolling
Width: 1500mm~3500mm, mainstream sizes: 1800mm, 2000mm, 2200mm, 2500mm
Length: 3000mm~15000mm, fixed-length cutting and four-edge trimming service available
Tolerance Standard: Thickness complies with Grade B high precision tolerance of GB/T709; flatness and camber strictly meet ultrasonic testing requirements for pressure vessel usage
Theoretical Weight Formula: Weight(ton) = Thickness(mm) × Width(m) × Length(m) × 7.85 ÷ 1000
5. Heat Treatment Delivery Status (Customizable Upon Request)
AR (As Rolled): For Q245R and thin gauge Q345R, cost-effective for general service
TMCP (Thermo-Mechanical Controlled Processing): Grain refinement to improve basic toughness, for medium-thickness plates
N (Normalized): For 16MnDR, 09MnNiDR low-temperature plates; eliminates rolling residual stress and greatly upgrades low-temperature impact toughness
N+T (Normalized & Tempered): For 15CrMoR, Cr-Mo heat-resistant steel and heavy thick plates; optimizes welding performance and reduces internal stress
Q+T (Quenched & Tempered): For 9% nickel steel, Q690DR high-strength plates, used for ultra-low temperature and heavy-load high-pressure equipment
6. Core Product Advantages
Reliable Low-Temperature Toughness: Rigorous V-notch impact test implemented to prevent low-temperature brittle fracture, fully compliant with special equipment safety specifications
Durable High-Temperature Mechanical Performance: Cr-Mo series grades possess outstanding long-term anti-creep capacity without permanent deformation under high temperature
Superior Weldability: Low carbon equivalent minimizes hot and cold cracking risks, compatible with SAW, GTAW, SMAW and all mainstream vessel welding techniques
High Purity Steel Substrate: Low sulfur and phosphorus content with few internal impurities; 100% ultrasonic inspection (UT Grade I / Grade II) available as optional requirement
Multi-Medium Corrosion Resistance: HIC resistant grades withstand hydrogen sulfide contained oil & gas media; Cr-Mo alloys resist hydrogen corrosion and high-temperature oxidation
Excellent Machinability: Supports flame cutting, plasma cutting, bending, tank rolling and bevel processing, perfectly matching tank forming production process
7. Factory Inspection Items (Accompanied by Original Mill Test Certificate)
Original mill test certificate will be provided for each batch, covering complete test items as below:
Chemical composition test (C, Si, Mn, P, S, Cr, Mo, Ni, V and other alloy elements)
Room temperature tensile test (yield strength, tensile strength, elongation rate)
Cold bending test (no crack after 180° bending)
V-notch impact test under specified temperature
Ultrasonic non-destructive inspection (UT Grade I / II optional)
Dimensional measurement and surface visual inspection; no lamination, crack, blister or folding defects permitted
8. Main Application Industries
Petrochemical Sector: Crude oil storage tanks, LPG tanks, hydrogenation reactors, fractionating towers, heat exchangers and oil & gas pressure-bearing equipment
Gas Energy Sector: LNG ultra-low temperature storage tanks, liquid nitrogen & liquid oxygen cryogenic vessels, municipal gas pressure storage tanks
Thermal & Nuclear Power Sector: Boiler drums, waste heat boilers, steam generators, nuclear power conventional island pressure shells
Coal Chemical & Fertilizer Sector: High-pressure synthesis towers, gasifiers, high-pressure hydrogen service reaction equipment
New Energy Sector: High-pressure hydrogen storage tanks, photovoltaic heat exchange equipment, energy storage pressure vessels
General Industrial Sector: Central air-conditioning pressure vessels, water treatment pressure tanks, food-grade pressure equipment
9. Packaging, Marking & Shipment Arrangement
Packaging: Anti-rust oil coated on plate surface, supported by wooden sleepers at bottom and fixed with steel bands; waterproof plastic film can be added for export shipments
Product Marking: Each steel plate is sprayed with steel grade, thickness, heat batch number, execution standard, UT inspection grade and mill trademark
Shipping Documents: Original mill test certificate, factory ultrasonic inspection report, packing list and full set of customs clearance documents for export orders
Loading Mode: Full truck load and container loading available; goods delivered from Tianjin Port to global destinations
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