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ASTM A36 Q235B Hot Rolled Carbon Black Steel Plate for Building Construction
This ASTM A36 Q235B hot rolled carbon black steel plate is a high-cost-performance structural material independently developed and produced by YTDR Group, dedicated to high-rise building frames, industrial workshop load-bearing structures, bridge deck components, and prefabricated building steel structure projects. It is tailored for B-end customers including engineering contractors, construction material distributors, and prefabricated building manufacturers, providing standardized and customizable solutions to meet the material needs of large-scale construction projects.
Data & Test Results to Solve Industry Pain Points
● High strength & toughness：ASTM A36 yield strength ≥250MPa, tensile strength 400–550MPa; Q235B yield strength ≥235MPa, elongation ≥26%. After low-temperature impact test (-20℃), the impact energy reaches ≥27J, effectively resisting structural deformation caused by building load and extreme weather (such as wind and snow loads in high-rise buildings).
● Pain point solution：Avoid structural safety risks caused by insufficient strength of steel plates in high-rise and large-span building projects.
● Superior weldability & processability：The hot-rolled process reduces the carbon equivalent of the steel plate (≤0.38%), supporting various welding methods (arc welding, gas welding, resistance welding) without cracking. The surface flatness error is ≤±1.5mm/m, which is convenient for on-site cutting, drilling, and bending processing.
● Pain point solution：Reduce construction site processing difficulty and improve project construction efficiency.
● Cost-effective corrosion resistance：The carbon black finish with anti-rust oil coating can maintain 6–12 months of rust prevention during storage and transportation. Combined with optional shot blasting and priming, it can adapt to the humid environments of coastal construction projects, reducing the later maintenance cost of the steel structure.
For customers with personalized project needs, YTDR Group provides one-stop customized services, no minimum order quantity (MOQ) limit for bulk orders:
●Specification customization：Non-standard thickness (150mm–300mm), ultra-wide (2500mm–3000mm) and ultra-long (12000mm–18000mm) steel plates can be customized according to construction drawings.
● Surface treatment customization：3PE anti-corrosion coating (for long-term outdoor use), galvanizing (for high-corrosion coastal areas), shot blasting and painting (directly applicable to on-site installation).
● Processing customization：Precision cutting (CNC flame cutting), beveling, drilling, and welding parts prefabrication to meet the assembly requirements of prefabricated buildings.
● Packaging customization：Export standard seaworthy packaging (wooden pallets + steel banding + waterproof film) or container loading according to customer requirements, suitable for long-distance sea transportation.
YTDR Group’s ASTM A36 Q235B hot rolled carbon black steel plate has passed a number of international authoritative certifications, ensuring compliance with global construction project material standards:
● Mandatory certifications：ISO 9001 quality management system certification, CE certification (compliant with EU Construction Products Regulation CPR), SGS/BV third-party inspection report (including chemical composition analysis, mechanical property test, ultrasonic flaw detection).
● Trade support certificates：Original manufacturer certificate, CO (Certificate of Origin), FORM A/FORM E (preferential tariff certificate), which helps customers reduce import tariffs and speed up customs clearance.
● Industry special certification：API 5L supplementary certification available for steel plates used in building supporting oil and gas pipeline auxiliary structures, expanding the application scope of products.
1. Supply Chain Capabilities
● Production capacity：Annual production capacity of 50,000 tons, with 3 advanced hot rolling production lines. The lead time for standard size steel plates is 7–15 days; for bulk customized orders, the delivery time can be negotiated according to the project schedule.
● Logistics service：Support FOB/CIF/EXW/DDP delivery terms, long-term partnership with top shipping lines (Maersk, CMA CGM). Provide door-to-door delivery service for global customers, and the logistics schedule can be tracked in real time.
● Quality inspection：Implement 100% full inspection before shipment — including dimensional inspection, surface quality inspection, ultrasonic flaw detection, and mechanical property sampling test. Third-party inspection (SGS/BV) can be arranged at the buyer’s designated location, with a 12-month quality warranty for all products.
2. After-Sales Support
● Technical support team：A professional team composed of 10+ senior steel structure engineers provides 24/7 online service (support English, Spanish, Arabic), and can provide free engineering design suggestions (such as steel plate thickness selection, welding process guidance) according to the customer’s project drawings.
● Complete documentation package：Provide a full set of export documents required for customs clearance and project acceptance: Material certificate (MTC), third-party inspection report, packing list, commercial invoice, CO certificate, and usage and maintenance manual.
● Cooperation mode：Support spot wholesale, bulk order customization, and long-term exclusive supply contracts (for distributors and engineering contractors), providing preferential prices and exclusive technical support for long-term partners.
Our ASTM A36 Q235B hot rolled carbon black steel plate has been widely used in global building construction projects, with mature application cases in different regions and scenarios:
(1) High-rise building structural engineering
● Applicable to: Main load-bearing beams, columns, floor slabs, and shear wall steel plates of high-rise residential buildings and commercial complexes.
● Case support: Our steel plates have been supplied to 20+ high-rise projects in the Middle East (Dubai, Abu Dhabi), with a single project supply volume of up to 5,000 tons, and the project acceptance rate is 100%.
(2) Industrial workshop & warehouse construction
● Applicable to: Heavy-duty workshop load-bearing structures, large-span warehouse roof trusses, and equipment foundation steel plates.
● Case support: Cooperated with European (Germany, France) industrial park construction projects, providing customized ultra-wide steel plates, which shortened the project construction period by 15%.
(3) Bridge & infrastructure construction
● Applicable to: Highway bridge deck base plates, overpass steel structure components, and municipal engineering supporting facilities.
● Case support: Supplied to 10+ bridge projects in Southeast Asia (Indonesia, Malaysia), withstanding high humidity and high temperature environments, and the service life of the steel structure is extended by more than 10 years.
(4) Prefabricated building industry
● Applicable to: Prefabricated wall panels, floor panels, and steel structure connectors, supporting modular assembly.
● Case support: Long-term supplier of North American prefabricated building manufacturers, providing pre-processed steel plates, reducing the customer’s on-site processing cost by 20%.
