Introduction
Special-shaped steel profiles are asymmetric-section steel products manufactured via hot rolling, cold forming, or welding processes. They feature high load-bearing capacity, fatigue resistance, and customizable design. Products comply with GB/T 706-2016 (China), ASTM A6/A6M-24a (USA), and EN 10025-6 (EU) standards, suitable for high-end machinery manufacturing, rail transit, bridge construction, and special building structures.
product highlights
1. High Precision Manufacturing
Utilizing 3D CNC rolling mills and laser inspection systems, dimensional tolerances are controlled within ±0.5mm to ensure precise alignment with other components.Application Scenarios
2. Multi-scenario Adaptability
Over 200 standard sections available, with customization for special shapes (e.g., elliptical, plum-shaped) to meet complex requirements in aerospace and shipbuilding.
3. Premium Material System
High-strength low-alloy steel (Q345B/Q390GJC), weathering steel (Q460C), and international standard materials (A36/A572 Gr50) with yield strength up to 345-460MPa.
Application Cases
Railway wagons: 310 Z-beam for heavy-duty carriage structures (complying with YB/T 6124.3-2024)
Bridge engineering: Weathering channel steel for cross-sea bridge hanger systems (salt spray test >1000 hours)
New energy equipment: Special-shaped angle steel for solar brackets (wind resistance ≥55m/s)
Manufacturing Process
1. Hot rolling: 1250℃ high-temperature rolling ensures material density
2. Online quenching: QST process increases yield strength by 20%
3. Precision straightening: Six-roll straightener eliminates residual stress
4. Intelligent marking: Laser marking traceability system (traceability accuracy ≤0.01mm)
Application Scenarios
FAQ
Q: 1. Can you customize special-shaped steel profiles with non-standard sections?
A: Yes, we support full-process customization, including drawing-based processing (CAD/3D drawings required), special shape design (e.g., arc, dovetail), and material performance optimization.
Customization process: Requirement communication → 3D modeling → finite element analysis → prototype production (7-15 days) → mass production.
Minimum order quantity for customization: 5 tons (adjustable based on complexity).
What surface treatment options are available? What is the service life of different treatments?
✅ Standard treatments:
Hot-dip galvanized: Zinc layer thickness ≥85μm, neutral salt spray test ≥1000 hours, suitable for humid/industrial pollution environments (service life 15-20 years).
Weathering coating: Acrylic/polyurethane paint, salt spray test ≥500 hours, suitable for outdoor exposure (requires regular maintenance, service life 8-12 years).
Phosphating: Forms a phosphate protective film, mainly for inter-process anti-rust or pre-painting treatment (short-term anti-rust, requires subsequent painting).
✅ Special treatments (e.g., Dacromet coating, epoxy powder spraying) can be customized; service life depends on the specific environment.
Hot Tags: special-shaped steel, China special-shaped steel manufacturers, factory, Cold Drawn Flat Steel, cold drawn steel, Special shaped Steel, Cold Drawn Square Steel, Cold Drawn Customised Shaped Steel, Cold Drawn Special shaped Steel
