GNEE RAILWAY RAILWAY Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of crane rail qu100 hot rolling process in China, also supports customized service with low price. Please feel free to buy cheap crane rail qu100 hot rolling process made in China here from our factory.
Crane Rail QU100 Hot Rolling Process
Product Introduction & Application
The theoretical weight of QU100 per meter can reach 88.95KG. The use of U71Mn material makes the crane rail have good mechanical properties such as good wear resistance and impact resistance. Hot rolling process is often used in the production process.
Hot rolling can be divided into three stages: rough rolling, intermediate rolling and finishing rolling. The heated steel billet first enters the rough rolling mill for rolling. The intermediate billet after rough rolling enters the intermediate rolling mill for further rolling. Finishing rolling is the key link of the hot rolling process, and its purpose is to make the steel reach the final finished product size and performance requirements. The finishing mill uses high-precision rollers and advanced rolling technology to accurately roll the billet.
The hot rolling process, which involves processing steel above its recrystallization temperature, offers multiple benefits for enhancing the performance and quality of crane rails, primarily including:
Grain refinement and improved strength
During hot rolling, the internal structure of the steel undergoes dynamic recrystallization, resulting in a uniform and fine grain size. This enhances the rail's yield strength and tensile strength, thereby improving its load-bearing capacity.
Balanced ductility and toughness
Grain refinement after recrystallization retains good ductility, making the rail less prone to brittle fracture under heavy or impact loads and significantly improving its impact toughness.
Uniformity of internal structure
Multi-pass rolling of flowing metal at high temperatures eliminates composition segregation in ingots, achieving uniform distribution of chemical composition and structure and ensuring consistent performance across the entire rail length.
Product Specifications
| Rail Type | SIZE(mm) | theoretical weight | |||||||||
| height | bottom width | head width | waist depth | ||||||||
| Heavy rail | 38KG | 134 | 114 | 68 | 13 | 38.733 | |||||
| 43KG | 140 | 114 | 70 | 14.5 | 44.653 | ||||||
| 45KG | 145 | 126 | 67 | 14.5 | 45.546 | ||||||
| 50KG | 152 | 132 | 70 | 15.5 | 51.514 | ||||||
| 60KG | 176 | 150 | 73 | 16.5 | 60.64 | ||||||
| Crane rail | QU70 | 120 | 120 | 70 | 28 | 52.8 | |||||
| QU80 | 130 | 130 | 80 | 32 | 63.69 | ||||||
| QU100 | 150 | 150 | 100 | 38 | 88.96 | ||||||
| QU120 | 170 | 170 | 120 | 44 | 118.1 | ||||||
Product Packaging and Delivery
Rust prevention and secure fastening are top priorities-rail materials are costly with long transportation cycles, so protective measures such as rust-proof cloth wrapping and anti-rust paint application must be implemented for rails.
Flexible packaging options-based on order volume, dimensions, and client requirements, choices include full container, LCL (Less than Container Load), wooden cases, or wooden frames.
Complete documentation-timely preparation of certificates of quality, inspection reports, and fumigation documents to avoid port detention.
GNEE RAILWAY RAILWAY is an international rail supplier, focusing on providing high-quality rail products that meet GB standards to global customers. With in-depth cooperation with large domestic steel mills, we ensure that each batch of rails meets strict specifications such as GB2585, covering 43kg/m to 75kg/m, QU70-QU120, 8Kg/m-30kg/m, and is suitable for heavy-duty railways, urban subways, industrial rails and other scenarios.
Relying on mature international trade experience and efficient logistics networks, we have successfully served Southeast Asia, Africa, the Middle East, South America and other markets, providing customized procurement solutions, on-time delivery and professional after-sales support.
With quality as the cornerstone and customer-centricity, we are committed to providing cost-effective rail solutions for global rail transit construction.
FAQ
Q: About the product price?
A: Due to the cyclical changes in raw material prices, prices vary in different periods.
Q: What certifications do your products have?
A: We have ISO 9001, EWC and other certifications.
Q: How long does your delivery time take?
A: Usually, our delivery time is within 7-45 days, and it may be delayed if a big or special situation occurs.
Q: Can I visit your factory?
A: Of course, we welcome customers from all over the world to visit our factory.
Q: Is there any quality inspection of the products before loading?
A: Of course, all our products are strictly quality tested before packaging.
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