Description: BBN steel is a well-known steel manufacturer and service provider in China, GB 713 Q245R steel is our superior product, we are favored by customers with high quality, competitive price and excellent service
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram
Chinese National Standard GB 713 | Carbon Pressure Vessel Steel | Q = Yield Strength, 245 = 245 MPa Min Yield, R = Pressure Vessel | Stable Strength & Strict Low-Impurity Control | Excellent Toughness & Process Performance
Stable Yield & TensileGrade name Q245R means 245 MPa minimum yield; balanced yield and tensile deliver dependable load-bearing capacity for pressure parts.
Strict Low-Impurity ControlPhosphorus and sulfur are tightly limited (P ≤ 0.025%, S ≤ 0.015%), giving clean steel with favorable toughness and welding behavior.
Excellent Toughness & ProcessabilityGood low-temperature toughness and process performance simplify forming, welding and fabrication of conventional boiler and pressure-vessel parts.
01Product Overview & Specifications
GB 713 Q245R is a mainstream carbon pressure vessel steel specified under the Chinese national standard GB 713. In the grade name, Q stands for yield strength, 245 refers to the minimum yield strength of 245 MPa, and R represents pressure vessel steel. It features stable yield and tensile strength, strict low-impurity control, excellent toughness and process performance.
Widely adopted for conventional boiler and pressure vessel manufacturing, Q245R is a fundamental material for petrochemical and energy industry pressure equipment.
Item
Specification Details
Steel Grade
GB 713 Q245R
Executive Standard
GB 713 — Steel plates for boilers and pressure vessels (China national standard)
Product Form
Steel Plate
Thickness Range
3mm – 100mm
Width Range
1500mm – 4000mm
Length Range
3000mm – 15000mmCustom available
MOQ
1 PC
Delivery Time
Promptly (Stock); Custom production: 10–40 working days
Stock Status
Available
Certification
MTC available, third-party inspection supported
Payment Terms
T/T, L/C At Sight
02Equivalent Steel Grades
Q245R is a dedicated boiler and pressure vessel steel of the China GB 713 standard. The grades below are industry-recognized approximate alternatives for reference; professional technical verification is required before engineering substitution.
Standard System
Approximate Alternative Grade
European EN Standard
P265GH
American ASTM Standard
ASTM A516 Gr60
Japanese JIS Standard
SPV235
Note: Equivalent grades are approximate matches for general pressure-vessel purpose; chemical limits, impact and heat-treatment conditions differ by standard. Verify the design code and project specification before cross-standard substitution.
03Chemical Composition
Chemical composition of GB 713 Q245R (heat / ladle analysis, max % unless noted). Strict low-impurity control ensures stable toughness and process performance.
Element
Max %
Element
Max % / Min %
C (Carbon)
0.20
Mn (Manganese)
0.50 – 1.00
Si (Silicon)
0.35
P (Phosphorus)
0.025
S (Sulfur)
0.015
Al (Aluminium, total min)
0.020
04Mechanical Properties
Yield strength and tensile strength of GB 713 Q245R vary according to plate thickness. Values below are minimum yield and the tensile range per thickness band.
245Yield (≤16mm)Min MPa
400–520Tensile StrengthMPa
3–100 mmThickness RangeFull range
Thickness (mm)
Yield Min (MPa)
Tensile (MPa)
> 3 – ≤ 16
245
400 – 520
> 16 – ≤ 36
235
390 – 510
> 36 – ≤ 60
225
380 – 500
> 60 – ≤ 100
205
380 – 500
> 100 (by agreement)
185
380 – 500
Note: Tensile strength decreases with thickness — 400–520 MPa (≤16mm), 390–510 MPa (>16–36mm), 380–500 MPa (>36mm). Product thickness range is 3–100mm per GB 713; the >100mm row follows the standard extension and is supplied by agreement. Elongation and low-temperature impact requirements follow GB 713 — confirm the exact grade and thickness with our technical team for your project.
05Typical Application Fields
GB 713 Q245R is a fundamental material for conventional pressure equipment, widely used in petrochemical and energy industries.
Pressure Vessels
Fabrication of various conventional industrial pressure vessels and general pressure-bearing equipment components.
Boiler Shells
Shells and drums for industrial boilers and power-generation pressure equipment.
Storage Tanks
Storage tanks and general welded structures requiring reliable pressure-bearing performance.
Petrochemical & Energy
Pressure-bearing parts for petrochemical plants, energy facilities and related engineering projects.
06Supply & Service
We supply full-specification GB 713 Q245R pressure vessel steel plates with complete official MTC certificates, third-party inspection and customized processing.
1
Full-Size Stock
Q245R plates 3–100mm in stock, promptly shipped.
2
Custom Cutting
Precision cutting to your dimensions, 10–40 working days for custom production.
3
Quality Inspection
Third-party quality inspection and complete official MTC certificates supported.
4
Global Supply
Stable and reliable steel supply for boiler and pressure vessel manufacturers worldwide.
Full-specification GB 713 Q245R steel plates with complete official MTC certificates
Third-party quality inspection and customized cutting service
Flexible delivery cycle with sufficient stock for global project procurement
Stable and reliable supply for boiler and pressure vessel manufacturers
Get Your GB 713 Q245R Quotation Now
Send us your thickness, width & length (or part drawings), quantity and processing requirements. We will reply with stock status, transparent price, delivery time and complete certification documents within 24 hours.
BBN Steel has established a complete set of production and supplier management system processes to ensure the improvement of product quality and better service to users.
Production Control
BBN Steel has established a complete production quality control process to ensure every link from research and development to mass production.
Supplier management
Our supplier selection will consider factors such as health and safety, ethics, environmental protection, price and quality to better serve customers.
Certification & Patent
We have successively won various international authoritative certifications, GB /T19001-ISO9001: 2000 quality management system was implemented.
After sales service
We provide booking space, shipping tracking service and after-sales service, we will always be first-class products and perfect pre-sale and after-sales service.
Get in Touch
Welcome to contact us through online consulting, emails and hotline if you are interested in our company or products. Our staff will reply you within 24 hours.
Address: HIGH-TECH DEVELOPMENT ZONE, ZHENGZHOU, CHINA
