Chinese 
Q690 Hot Rolled Carbon Steel Plate | Equivalent S690QL, A572 Gr70
- Top-Grade Ultra-High Strength Structure, Maximize Load-Bearing Capacity For Extreme Heavy-Duty Projects
- Strict Purity Component Control, Excellent Toughness & Anti-Fatigue Performance For Dynamic Engineering Use
- Lightweight Structural Design, Effectively Reduce Overall Project Weight & Construction Cost
- Complete Custom Processing Service, Meet Special Dimension Requirements For Specialized Heavy Equipment
- Authorized MTC 3.1 Certificate & Full Third-Party Inspection Support For High-Standard Overseas Bidding
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Product Overview
Q690 hot rolled ultra-high strength low alloy carbon steel plate is manufactured in strict accordance with GB/T 1591 national standard, belonging to the highest strength grade in conventional structural steel series. Different from ordinary medium and high strength steel, Q690 features ultra-high yield strength, outstanding fatigue resistance and stable structural stability, which can realize lightweight design while bearing extreme heavy loads, greatly optimizing engineering comprehensive cost.
This grade is commonly referenced with European S690QL and ASTM A572 Gr70 for international project bidding and material substitution. It is the preferred material for high-standard heavy industry and extreme load-bearing scenarios. Our factory provides full-process customized services including fixed-size cutting, flattening, bending, drilling and surface shot blasting to meet personalized processing requirements of special engineering projects.
Widely applied in large mining equipment, port lifting machinery, heavy crane components, engineering vehicle frames and extreme load-bearing structural parts. Each batch of Q690 steel plate is equipped with complete EN10204 3.1 mill test certificate. SGS, BV and other third-party authoritative inspections are fully supported. We support bulk long-term orders and flexible mixed container shipment, providing stable supply solutions for global engineering contractors and high-end steel traders.
Chemical & Mechanical Property Snapshot
Detailed Technical Specifications
Product Comparison Table
App Market
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Product Packaging
Secure Export Packaging For Safe Handling And Delivery
FAQs
Yes. Our Q690 plate is produced strictly per GB/T1591 standard, equipped with EN10204 3.1 MTC certificate and supports SGS/BV third-party inspection. It fully meets the qualification requirements of international high-end engineering bidding and overseas project acceptance.
Absolutely. We provide one-stop precision cutting, bending and forming services for non-standard sizes. Custom processing solutions can be formulated according to your drawings to meet special structural design requirements of heavy equipment.
Yes. We support flexible mixed container loading with Q235B, Q355B, Q460 and other structural steels, which effectively saves container space and reduces your overall international procurement and shipping costs.
Standard conventional sizes have stable stock and fast delivery within 12-20 working days. For large bulk orders or customized special specifications, we will provide an accurate formal delivery schedule after order confirmation.
We provide full set of official documents including mill test certificate, commercial invoice, packing list and bill of lading. Customized certification documents can also be provided to meet different countries’ customs and project acceptance standards.
Yes. We can provide shot blasting and professional marine anti-rust primer treatment according to your needs, with standard seaworthy export packaging to avoid rust and damage during long-term ocean transportation and storage.
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