Q245R Q345R Q355R Q370R Boiler Steel Plate for Boiler Drums & Pressure Vessels

Complies with GB/T713 Chinese boiler steel standard for pressure-bearing equipment
Excellent high-temperature toughness and stable mechanical property under working heat
Good weldability and hot forming performance for boiler drum rolling & fabrication
Available customized cutting service to match boiler manufacturing drawing requirement
Complete mill test certificate MTC 3.1/3.2 for full material traceability

Product Overview

Q245R, Q345R, Q355R, Q370R Boiler Steel Plate is carbon boiler steel plate manufactured under GB/T713 standard, widely used for boiler drums, water walls, superheaters and other high-temperature pressure-bearing boiler components. This series boiler steel features stable high-temperature strength, reliable impact toughness and outstanding welding performance.

We supply full size range from 6mm~150mm thickness, width 1500mm~4000mm, length 3000mm~12000mm. Custom cutting and processing service can be offered according to boiler fabrication drawings. Every batch comes with EN10204 3.1 or 3.2 material test certificate, fully traceable chemical and mechanical inspection records. Suitable for thermal power station boiler equipment, industrial boiler pressure parts and heat exchangers.

Boiler & Pressure Vessel Steel Plate

Chemical & Mechanical Property Snapshot

Grade	Chemical Composition (Max, %)					Mechanical Properties
	C	Si	Mn	P	S	Yield Strength Rp0.2 (MPa)	Tensile Strength Rm (MPa)	Elongation A (%)
Q245R	0.20	0.35	0.80~1.40	0.025	0.015	≥245	400~520	≥21
Q345R	0.20	0.55	1.20~1.60	0.025	0.015	≥345	510~640	≥20
Q355R	0.20	0.55	1.20~1.60	0.025	0.015	≥355	520~670	≥20
Q370R	0.18	0.55	1.20~1.60	0.025	0.015	≥370	570~720	≥20

Detailed Technical Specifications

Category	Item
Product Name	Q245R / Q345R / Q355R / Q370R Boiler Steel Plate
Product Type	GB Boiler Carbon Steel Plate
Product Classification	Carbon Steel Plate For Boiler, Boiler Drum, Water Wall, Superheater and Heat Exchanger
Standards	GB/T713
Grades	Q245R, Q345R, Q355R, Q370R
Size Range	Thickness:6–150mm; Width:1500–4000mm; Length:3000–12000mm
Main Performance	High-temperature strength, good weldability, stable impact toughness, pressure resistance
Processing Capability	Custom cutting, bending and processing according to boiler manufacturing drawings
Main Applications	Boiler drums, water walls, superheaters, power plant headers, industrial boiler pressure parts
MOQ	5 Ton
Trade Terms	FOB, CFR, CIF, DDP, EXW
Payment Terms	T/T, L/C at Sight, Western Union, Trade Assurance
Delivery Time	3-7 days for in-stock goods; 10-25 days for customized production
Packaging Standard	Standard seaworthy export packing, wooden pallets / steel bundles, waterproof and rust-proof film, fixed with steel strips
Certificate	MTC 3.1 / 3.2, ISO, SGS, BV

Product Comparison Table

Product Category	Typical Grades	Applicable Standards	Main Applications
Low Strength Boiler Plate	Q245R	GB/T713	Low-pressure boiler drums, heat exchangers
Medium Strength Boiler Plate	Q345R, Q355R	GB/T713	Medium pressure boiler components, boiler headers
High Strength Boiler Plate	Q370R	GB/T713	Heavy-duty boiler pressure parts, power station boiler

App Market

Reliable Steel Coil Solutions For Diverse Industrial Applications

Boiler Drum

Water Wall

Superheater

Heat Exchangers

Power Plant Headers

Gas Storage Tanks

Chemical Reactors

LNG Storage Tanks

Pipeline Heads

Separators

Product Packaging

Secure Export Packaging For Safe Handling And Delivery

FAQs

What is Q245R/Q345R/Q355R/Q370R boiler steel plate used for?

They are GB/T713 boiler steel plates mainly used for boiler drums, water walls, superheaters and pressure parts of industrial boilers & thermal power boilers.

What heat treatment state of these boiler plates you supply?

Normalized condition is standard. Other heat treatment can be customized on request.

What certificates can you provide?

EN10204 3.1 or 3.2 Mill Test Certificate, ISO, SGS and BV inspection reports are available.

Can we cut the boiler plate according to our drawing?

Yes, we provide custom cutting service to match your boiler fabrication drawings.

What is your MOQ and delivery time?

MOQ is 5 tons. Stock items deliver within 3-7 days; customized production takes 10-25 days.

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Q245R Q345R Q355R Q370R Boiler Steel Plate for Boiler Drums & Pressure Vessels