Name: Q245R / Q345R Vessel Boiler Plate
SKU: 0

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Q245R / Q345R Vessel Boiler Plate

Q245R and Q345R carbon steel plates are dedicated GB 713 pressure vessel steel grades engineered for sustained high-temperature & high-pressure service. Strictly controlled impurity elements deliver stable weldability, low-temperature impact toughness and anti-fatigue performance. Q245R serves cost-effective medium-low pressure equipment; Q345R features higher tensile strength for heavy-duty petrochemical, oil & gas boiler and storage tank fabrication, ideal for bulk industrial procurement for Middle East refinery and energy projects.

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Product Parameters

Types of carbon steel and their properties

Carbon steel can be classified into three categories according to its carbon content: low-carbon steel (or mild-carbon steel), medium-carbon steel and high-carbon steel . Their carbon content, microstructure and properties compare as follows:

Carbon content (wt.%)	Microstructure	Properties	Examples
Low-carbon steel	< 0.25	Ferrite, pearlite	Low hardness and cost. High ductility, toughness, machinability and weldability
Medium-carbon steel	0.25 – 0.60	Martensite	Low hardenability, medium strength, ductility and toughness
High-carbon steel	0.60 – 1.25	Pearlite	High hardness, strength, low ductility

PRODUCT DETAILS

Product Name	Q245R / Q345R Vessel Boiler Plate
Standard	GB/T 713-2023 Steel Plates for Boiler and Pressure Vessels; cross reference comparable to ASTM A516 Gr60/Gr70, EN 10028 P265GH/P355GH
Material	Q245R / Q345R
Technique	Cold Rolled, Hot Rolled
Common Sizes & Thickness	Common Thickness Range 3mm – 250mm; mainstream engineering thickness: 6mm / 10mm / 16mm / 20mm / 30mm / 50mm / 80mm / 100mm Usual Dimension Sizes Width: 1500mm / 1800mm / 2000mm / 2200mm / 2500mm Length: 6000mm / 9000mm / 12000mm, custom cut-to-length available
Surface Treatment	Standard hot rolled black oxide finish, shot blasting optional for better painting adhesion Anti-rust oil coating for long-sea transit storage Edge chamfered upon request for welding preparation
Temper	Hot rolled, controlled rolling, normalized; normalized + tempered for heavy thick plates over 60mm
Origin	China
HS Code	7209250000
Delivery Time	7-15 days，depends on quantity ordered
After-sales Service	24 hours online
Production Capacity	100000 Tons/Year
Loading Port	Any port in China
Certificates	EN 10204 3.1 Mill Test Certificate (MTC) with full chemical & mechanical test records SGS / BV / TUV third-party inspection reports UT ultrasonic testing certificate (Class A/B/C as client required) Charpy impact, bending, tensile test reports HIC & SSCC test certificates for sour oil service order PED CE certification available for EU parallel export orders
Packaging	Standard Sea-worthy Packaging
Processing Service	Bending, Welding, Decoiling, Punching, Cutting
Tolerance	±1%
MOQ	5 tons
Payment Terms	TT, LC,Cash, Paypal, DP, DA,Western Union or Others.
Terms Of Trade	EXW,FOB, CRF, CIF ,CNF or others
Exported to	Saudi Arabia; UAE (Dubai, Sharjah); Qatar; Iraq, Kuwait;Vietnam, India, South Africa
Core Strengths	Strict low S&P impurity control, uniform grain structure for reliable welding without pre-heat cracking Stable Charpy impact toughness at 0℃, resistant to thermal cycling & pressure fluctuation Two tiered grades: Q245R cost-efficient for mild loads; Q345R high yield for heavy pressure working conditions Available Z15/Z25/Z35 through-thickness quality for thick-wall large vessel manufacturing Custom HIC-resistant version for sour crude & corrosive petrochemical service Full third-party test support to meet Middle East refinery inspection standards Large spot inventory & flexible cutting, fast bulk delivery for large oil project orders
Application	Petrochemical: Crude storage tanks, hydrocarbon separation vessels, refinery heat exchangers Energy & Power: Industrial boiler drums, waste heat recovery cylinders, steam separators Gas Industry: Natural gas buffer tanks, pressure buffer containers, LPG storage equipment Water Treatment: Desalination pressure vessels, high-pressure reaction tanks General Heavy Engineering: Medium-high pressure reactors, industrial heat exchange shells

To get most competitive carbon steel sheet price for long-term business cooperation, please send your grade, size and quantity inquiry now!

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FAQ

1.What kind of customer service do you provide?

We provide comprehensive customer service, including basic design, procurement of supporting facilities, and options for dispatching installation guides.

2.What are the customer evaluations of your company?

We are proud to consistently receive five-star reviews from our customers, which demonstrates our commitment to quality and service.

3.What is your quality inspection process like?

Our strict quality inspection process ensures that every product meets the highest standards of excellence. From raw materials to finished products, every stage is carefully inspected to ensure excellent quality.

4.Do you accept container loading inspection?

Welcome to dispatch inspectors, not only for container loading, but also at any time during production.

5.What is the delivery time?

The delivery time depends on the quantity of orders. Usually, the delivery time to the nearest port in China is 15-30 days after receiving the deposit.

6. How to obtain a project quotation?

You can contact us 24 * 7 via email, phone, WhatsApp, WeChat, etc. You will receive a reply within 4 hours.