Prime Boiler & Pressure Vessel Steel Plates (ASTM A516 Gr.70 / ASME SA516 / P265GH / 09G2S)
- Key Standards: ASTM A516 / ASME SA516, EN 10028-2 / EN 10028-3, JIS G3118, DIN 17155, GOST 5520-79
- Main Grades: A516 Gr.60/65/70, P265GH, P295GH, P355GH, 16Mo3, 09Г2С (09G2S), 20R, 16MnR
- Thickness Range: 6 mm – 150 mm (Heavy plates up to 200 mm on request)
- Width & Length: Width 1500–4000 mm | Length 6000–12000 mm (Custom cutting per drawings)
- Heat Treatment & Testing: Normalized (N), Stress Relieved (SR), Charpy V-Notch Impact Test at -20°C/-46°C, UT tested per ASTM A435/A578 Level A/B/C
- Certifications: EN 10204 3.1 / 3.2 MTC, ISO 9001, CE, HIC / SSCC Tested, Third-Party SGS/BV/TÜV Approved
- Global Delivery: Sea Freight to Middle East (Jebel Ali, Dammam) & Railway Freight to Central Asia (Almaty, Tashkent)
Boiler & Pressure Vessel Steel Plates Overview
Our Boiler and Pressure Vessel Steel Plates (PVQ / BQ Steel) are engineered specifically for moderate and lower temperature services where notch toughness is critical. Manufactured from high-purity killed carbon and low-alloy steel with fine austenitic grain size, these plates exhibit superior weldability, excellent high-pressure resistance, and high resistance to hydrogen-induced cracking (HIC).
Widely utilized across oil & gas refineries, petrochemical plants, thermal power stations, LNG storage tanks, industrial boilers, heat exchangers, reactors, and pressure piping systems globally.
Technical Specifications & Standard Cross-Reference
| Parameter | Specifications & Capabilities |
|---|---|
| Manufacturing Standards | • American (ASME/ASTM): ASTM A516/A516M, ASME SA516, ASTM A537, ASTM A285, ASTM A387 • European (EN): EN 10028-2, EN 10028-3, DIN 17155, BS 1501 • Russian/CIS (ГОСТ): ГОСТ 5520-79, ГОСТ 19281-2014 • Japanese (JIS): JIS G3118 (SGV410 / SGV450 / SGV480), JIS G3115 (SPV355) |
| Equivalent Steel Grades | • ASTM / ASME: A516 Grade 55, Grade 60, Grade 65, Grade 70 (SA516 Gr.70) • EN Standard: P235GH, P265GH, P295GH, P355GH, P355NH, P355NL1/NL2, 16Mo3 • GOST Standard: 09Г2С (09G2S), 09Г2С-12, 20К, 16ГС, 10Г2ФБ • Chinese GB: Q245R, Q345R, Q370R |
| Thickness Range | 6 mm – 150 mm (Heavy & extra-heavy plates up to 200 mm available on request) |
| Width & Length | • Width: 1500 mm – 4000 mm (Standard: 2000mm, 2200mm, 2500mm, 3000mm) • Length: 6000 mm – 12000 mm (Custom cut-to-length per CAD drawings) |
| Delivery & Heat Treatment Condition | • As Rolled (AR) • Normalized (N) / Normalizing Rolling (NR) • Quenched & Tempered (Q+T) • Post Weld Heat Treatment (PWHT) & Stress Relieved (SR) |
| Non-Destructive Testing (NDT) | 100% Ultrasonic Testing (UT) conforming to ASTM A435, ASTM A578 (Level A/B/C), EN 10160 (S1E1, S2E2) |
| Impact Test Properties | Charpy V-Notch low-temperature impact test at 0°C, -20°C, -40°C, -46°C, or -50°C per project engineering requirements |
| Special Requirements | HIC (Hydrogen Induced Cracking) tested per NACE TM0284, SSCC tested per NACE TM0177, Z-Direction Tensile Test (Z15, Z25, Z35) |
| Quality Certification | Full Original Mill Test Certificate issued in accordance with EN 10204 3.1 / 3.2 (TÜV, Lloyd’s, DNV, SGS, BV witnessed) |
Typical Industrial Applications
- Petrochemical & Refining: Pressure reactors, distillation columns, gas storage spheres, hydrocrackers, and separation vessels.
- Power Generation & Boilers: Steam drums, industrial boilers, superheater headers, and heat recovery steam generators (HRSG).
- Oil & Gas Infrastructure: High-pressure gas transmission piping, LPG/LNG storage tanks, separators, and offshore process modules.
- Heavy Engineering: Heat exchangers, autoclaves, and pressurized storage equipment for chemical processing plants.
Value-Added Cutting & Fabrication Services
- CNC Flame & Plasma Cutting: Heavy plate cutting into dished ends, circular flanges, and complex vessel shell profiles per CAD files.
- Weld Edge Preparation: Precision single-V, double-V, J-bevel, and K-bevel edge milling for seamless automated welding.
- Plate Rolling & Bending: Heavy plate rolling for cylinder shells and conical sections.
- Surface Preparation: Shot blasting to Sa 2.5 cleanliness with pre-construction shop primer application.
Export Packing & Direct Shipping Guarantee
- Traceability & Marking: Clear die-stamped heat number, plate number, grade, size, and inspector’s mark on each plate; accompanied by durable waterproof paint stenciling and barcode tags.
- Protective Packaging: Bare bundled with heavy-duty steel wire ropes, anti-corrosive edge protectors, and rust-preventive coating.
- Middle East Sea Freight: Direct breakbulk vessel and 20GP/40GP open-top container shipping to Jebel Ali (UAE), Dammam/Jeddah (Saudi Arabia), Sohar (Oman), and Istanbul (Turkey).
- Central Asia Railway Express: Direct railway flatbed cars and container trains to Almaty, Atyrau, Aktau (Kazakhstan), Tashkent (Uzbekistan), and Turkmenbashi (Turkmenistan) under DAP/FOB terms.
Why Source Pressure Vessel Plates from Us?
- Strict ASME & EN Compliance: Guaranteed chemical composition, high tensile strength, and stringent low-temperature impact values.
- Third-Party Inspection: 100% acceptance of SGS, Bureau Veritas (BV), TÜV, DNV, and Intertek for chemical analysis, mechanical re-testing, and dimensional verification.
- Fast Delivery from Massive Stock: Large inventory of ASTM A516 Gr.70 and 09G2S plates ready for immediate dispatch within 3-7 days.
- Competitive Direct Mill Pricing: Direct mill supply eliminating distributor margins with flexible payment terms (T/T, L/C).
