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Help CenterSteel Sheet & Plate & Boiler Steel Plate，Q245R、Q345R、15CrMoR、12Cr1MoVR、P265GH、16Mo3、13CrMo44、SA516 Gr60/70、SA387 Gr12/Gr22
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1. Product Overview
Boiler steel plate is a special high-temperature and pressure-resistant medium & heavy steel plate, belonging to national standard pressure vessel special steel. Strictly manufactured under GB/T 713 and international pressure vessel standards, the plate features high-temperature creep resistance, stable high-pressure performance, ultra-low impurity content, excellent low-temperature toughness and superior weldability.
It is specially designed for long-term operation under high temperature, high pressure and alternating thermal load. With high safety coefficient, fatigue resistance and anti-cracking performance, boiler plate is the core raw material for industrial boilers, power station equipment, thermal pressure vessels and high-temperature chemical equipment.
2. Main Material Grades
2.1 Carbon Boiler Steel Plate
Q245R: Basic boiler grade, stable performance, excellent weldability, suitable for medium & low temperature and low-pressure boiler equipment
Q345R: Mainstream universal grade, balanced strength and toughness, widely used for boiler drums, headers and conventional pressure parts
Q370R: High-strength grade for high-pressure thick-wall boilers and heavy-duty pressure equipment
2.2 Low Temperature Resistant Boiler Plate
16MnDR: Low-temperature pressure-resistant grade, suitable for low-temperature boiler auxiliary equipment and cold-region pressure vessels
2.3 High Temperature Alloy Boiler Plate
15CrMoR / 12Cr1MoVR: Heat-resistant alloy grades, outstanding high-temperature creep resistance, applicable for 500℃–580℃ high-temperature boilers and petrochemical high-temperature reactors
2.4 International Standard Grades
European Standard: P265GH, P355GH
American Standard: SA516 Gr60/70, SA537 Class 1/2
3. Standard Specifications
Thickness range: 6mm–120mm (custom extra-thick plate up to 200mm available)
Width range: 1500mm–4200mm
Length range: 6000mm–12000mm
Delivery condition: Hot rolled, normalized, normalized + tempered, TMCP controlled rolling
Ultrasonic inspection: Level Ⅰ / Ⅱ / Ⅲ full-plate UT testing
Optional Z-direction performance: Z15 / Z25 / Z35 for anti-lamellar-tearing requirements
4. Core Product Advantages
Excellent high-temperature stability: Resists thermal deformation and creep under long-term high-temperature operating conditions.
High pressure bearing capacity: Dense internal structure with extremely low inclusions, ensuring no bursting or failure under alternating pressure loads.
Superior welding performance: Strict control of sulfur and phosphorus content, effectively avoiding welding cracks during boiler manufacturing.
Strong temperature adaptability: Stable mechanical properties from low temperature to 580℃ high temperature, suitable for variable working conditions.
High safety and reliability: Full piece-by-piece inspection, meeting special equipment safety standards for power and chemical industries.
Good processing performance: Supports cutting, rolling, bending, beveling and integral boiler forming.
5. Production Process
Steel slab re-inspection → High-temperature heating → High-pressure descaling → Precision controlled rolling → Straightening & cooling → Professional heat treatment (Normalizing / Tempering) → Surface finishing → Full-plate ultrasonic testing → Physical & chemical performance test → Fixed-size cutting → Marking → Rust removal → Standard packaging & warehousing
6. Supply Forms & Deep Processing
Supply Forms
Full-size boiler plates, custom cut fixed-size plates, thick-wall special plates, Z-direction performance plates
Available Deep Processing
CNC flame & plasma cutting
Boiler shell rolling and bending forming
Bevel processing for welding assembly
Secondary ultrasonic inspection and customized heat treatment
7. Executive Standards
Chinese Standard: GB/T 713-2023
American Standard: ASTM SA516, SA537
European Standard: EN10028, PED certification standard
8. Main Application Fields
Power Station Boilers: Boiler drums, header pipes, furnace walls and high-temperature pressure components
Industrial Boilers: Civil heating boilers, steam boilers and pressure-bearing accessories
Petrochemical Industry: High-temperature reactors, heat exchangers, evaporators and separation equipment
Pressure Vessel Manufacturing: Medium and high-temperature storage tanks, pressure containers and thermal equipment
Energy Engineering: Thermal power supporting equipment, high-temperature pipe fittings and energy storage pressure devices
Heavy Industry Equipment: High-temperature and high-pressure mechanical bearing structures
9. Quality Inspection Items
Mechanical performance: Yield strength, tensile strength, elongation, normal & low-temperature impact test, bending test
Chemical composition: Precise detection of carbon, manganese, silicon, sulfur, phosphorus and alloy elements
Non-destructive testing: Full-plate ultrasonic inspection to eliminate delamination, pores and cracks
Metallographic inspection: Grain fineness, internal structure purity and defect detection
Process performance: Weldability test and high-temperature endurance performance test
10. Packaging, Transportation & Storage
Packaging: Standard industrial export packaging with steel band reinforcement, corner protection and anti-rust treatment
Transportation: Special flat vehicle transportation to avoid extrusion, collision and plate deformation
Storage: Stored in dry and ventilated warehouse, flat stacking with moisture-proof and anti-rust measures
Service support: Custom sizing, irregular cutting and drawing-based processing
11. Foreign Trade Business Instructions
MOQ: 5 tons, mixed grades and mixed specifications are acceptable
Regular specifications in stock; special thick plates and alloy grades take 5–7 working days
Available documents: Mill test certificate, ultrasonic inspection report, physical and chemical test report, certificate of origin
Payment terms: 30% TT advance deposit, balance against B/L copy
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