Contact Platform Support
Help CenterSteel Sheet & Plate & Pressure Vessel Plate，Q245R、Q345R、Q370R、Q420R、Q460R、16MnDR（-40℃）、09MnNiDR（-70℃）、15CrMoR、14Cr1MoR、12Cr1MoVR
Related Products
-
Steel Sheet & Plate & Checkered Plate，BCP270、BCP340、BCP400、1060、3003、5052、5083NegotiableMOQ: 5 Metric Tons -
Steel Sheet & Plate & Shipbuilding Steel Plate，A、B、D、E（CCS A/CCS B/CCS D/CCS E）、AH32、DH32、EH32、AH36、DH36、EH36NegotiableMOQ: 5 Metric Tons
-
Steel Sheet & Plate & Boiler Steel Plate，Q245R、Q345R、15CrMoR、12Cr1MoVR、P265GH、16Mo3、13CrMo44、SA516 Gr60/70、SA387 Gr12/Gr22NegotiableMOQ: 5 Metric Tons
-
Steel Sheet & Plate & Steel Sheet Pile，Q235B、Q355B/SY295/SY390、S275JR、S355GP、S430GP、A328 Gr50、A572 Gr50、A690NegotiableMOQ: 5 Metric Tons
-
Steel Rebar & Deformed Steel Bar，Φ12/14/16/18/20/22/25/28/32mmNegotiableMOQ: 5 Metric Tons
1. Product Overview
Pressure vessel steel plate is a special high-safety hot-rolled medium and heavy steel plate strictly manufactured for pressure-bearing special equipment. It features high strength, excellent toughness, fatigue resistance, impact resistance, outstanding weldability and stable performance under high temperature and high pressure. With extremely low internal impurities and high-level non-destructive testing, the plate avoids lamellar tearing and bursting risks. It is widely used in boilers, storage tanks, pressure vessels and chemical pressure-bearing equipment, serving as essential safety steel materials for energy, chemical and power industries.
2. Main Material Grades and Application Conditions
2.1 Chinese Standard Grades (GB/T 713)
Q245R: General grade for low temperature and low pressure, excellent toughness and weldability, suitable for ordinary storage tanks, atmospheric vessels and heat exchangers.
Q345R: Most widely used mainstream grade with balanced comprehensive performance, applied to boiler drums, gas storage tanks and chemical reactors.
Q370R: High-strength grade for high-pressure equipment, thick-wall pressure vessels and large storage tanks.
Q345R-Z35: Z-direction performance steel plate with anti-tearing property, specially used for thick plate welding and heavy-duty high-pressure equipment.
2.2 Low-temperature Resistant Grades
09MnNiDR: Ultra-low temperature impact resistance at -70℃, suitable for LNG storage tanks and cryogenic chemical equipment.
2.3 High-temperature Resistant Alloy Grades
15CrMoR / 12Cr1MoVR: High temperature and creep resistance, used for high-temperature boilers, steam equipment and petrochemical reactors.
2.4 International Standard Grades
European Standard: P265GH, P355NL, P355NH
American Standard: SA516Gr60/70, SA204GrB
3. Standard Specifications
Thickness Range: 6mm–120mm (custom extra-heavy plate over 150mm available)
Width Range: 1500mm / 1800mm / 2000mm / 2200mm / 2500mm
Length Range: 6000mm–12000mm
Delivery Condition: Hot rolled, normalized, normalized + tempered, controlled rolling
UT Inspection Level: Level Ⅰ / Ⅱ / Ⅲ
Z-direction Performance: Z15 / Z25 / Z35 optional
4. Core Product Advantages
High Safety Factor: Strict control of sulfur and phosphorus impurities, dense internal structure, no delamination or porosity, ensuring no bursting under pressure.
Excellent Weldability: Low risk of welding cold and hot cracks, ideal for tank rolling and splicing welding.
Wide Temperature Adaptability: Stable from -70℃ ultra-low temperature to 550℃ high temperature, no brittle fracture under temperature alternation.
Strong Fatigue Resistance: Not easy to deform or fail under long-term alternating high-pressure load.
High Testing Qualification Rate: Piece-by-piece ultrasonic testing to meet special equipment safety standards.
Powerful Deep Processing Performance: Support cutting, rolling, bending, beveling, welding and heat treatment.
5. Production Process
Steel slab re-inspection → High-temperature heating → High-pressure water descaling → Precision controlled rolling → Straightening and cooling → Heat treatment (Normalizing / Tempering) → Surface finishing → Ultrasonic testing → Physical and chemical inspection → Edge cutting & sizing → Marking → Polishing and rust removal → Packaging and warehousing
6. Supply Forms & Processing Services
Supply Forms
Full-size plates, custom cut plates, irregular cutting plates, extra-heavy customized plates
Available Deep Processing
CNC flame / plasma cutting
Plate rolling and tank forming
Bevel processing and welding pretreatment
Secondary ultrasonic inspection and customized heat treatment
7. Executive Standards
Chinese Standard: GB/T 713-2023
American Standard: ASTM SA516, SA204
European Standard: EN10028
8. Main Application Fields
Boiler Industry: Power station boilers, industrial boiler drums and pressure-bearing components
Chemical Industry: Reactors, heat exchangers, evaporators and separation towers
Storage Tank Engineering: Crude oil tanks, water tanks, gas tanks and LNG cryogenic storage tanks
Power & Energy Industry: Power plant pressure equipment, thermal pipe networks and high-pressure vessels
Heavy Machinery: High-pressure hydraulic equipment and heavy load-bearing shells
Special Equipment: Pressure vessel manufacturing, pressure pipe rolling and explosion-proof structures
9. Quality Inspection Items
Mechanical properties: Yield strength, tensile strength, elongation, normal/low temperature impact and bending test
Metallographic inspection: Internal grain structure and impurity content
Non-destructive testing: Full-plate ultrasonic inspection for delamination, cracks and pores
Chemical composition: Precision analysis of carbon, manganese, silicon, sulfur, phosphorus and alloy elements
Process performance: Weldability test, Z-direction tensile test and lamellar tearing resistance test
10. Packaging, Transportation & Storage
Packaging: Factory standard packing with painting marking, corner protection and steel band reinforcement
Transportation: Flat truck transportation to avoid heavy pressure, collision and bending deformation
Storage: Dry and ventilated warehouse, moisture-proof and rust-proof with flat stacking
Delivery Service: Custom sizing, irregular cutting and drawing-based processing
11. Foreign Trade Business Instructions
MOQ: 1 piece, mixed specifications and grades acceptable
Regular specifications in stock; special thick plates and alloy grades take 3–7 production days
Available documents: Mill test certificate, ultrasonic test report, mechanical property report and certificate of origin
Payment Terms: 30% TT advance deposit, balance against B/L copy
Send Inquiry to This Supplier
You May Also Like
-
Steel Wire & Electro Galvanized Wire，Q195、Q235、Q235B、SWC、SWP-BNegotiableMOQ: 5 Metric Tons
-
Flat Steel & Flat Steel Bar，20×3、25×4、30×4、40×4、40×5、50×5、50×6、60×6、80×8、100×10NegotiableMOQ: 5 Metric Tons
-
Steel Angle & Light Thin Wall Angle Iron，20#、25#、30#、40#、50#、63#、70#、80#、100#NegotiableMOQ: 5 Metric Tons
-
Steel H Beam & H Section Steel / Wide Flange H Beam，100×100、150×150、200×100、250×250、300×150、300×300、400×200、400×400、500×300、600×300、700×300、900×300NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Hot Dipped Galvanized Steel Pipe，ASTM A53 Gr.A/B、EN 10255、BS1387、JIS G3452NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Alloy Steel Pipe，P11、P12、P22、P91、P92、T11、T12、T22、T91、30CrMo、35CrMo、42CrMoNegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & OCTG Oil Country Tubular Goods，H40、J55、K55、M65、N80-1、N80Q、R95、L80-1、L80-9Cr、L80-13Cr、Gr.B、X42、X52、X60、X65、NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & High Pressure Boiler Tube，20G、20MnG、25MnG、15CrMoG、12Cr2MoG、12Cr1MoVG、10Cr9Mo1VNb（T91/P91）、12Cr9W2VNbB（T92/P92）NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Precision Steel Tube，GB/T3639、GB/T32957、EN10305NegotiableMOQ: 5 Metric Tons
-
Steel Pipe & Tube & Cast Steel Pipe，HT150、HT200、HT250、HT300、QT400-18、QT450-10、QT500-7、QT600-3、KTH350-10、KTZ450-06、KTZ650-02NegotiableMOQ: 5 Metric Tons
