S960Q/S960QL Angle Steel / Unequal Angle Steel, S960QL Angle Profile Manufacturer for Offshore Engineering & Shipbuilding

S960QL / S960QL1 Ultra-High Strength Angle Steel & Unequal Angle Steel
One-stop value-added solution — high-power laser hybrid welded equal & unequal angle steel that fully resolves HAZ softening, passes CTOD tests and supplies complete NDT reports.

In modern truss structures, tall lattice towers, high-rise stiffeners and heavy construction machinery design, the key to gaining competitive advantage lies in overcoming local load limits, optimising mechanical space and maximising lightweight performance.
Adopting innovative technology and deploying high-power laser hybrid welding plus custom profile production lines, Peakkong Special Steel manufactures high-precision welded equal and unequal angle steel profiles in S960QL (minimum yield strength ≥960 MPa) and S960QL1 (top-tier ultra-low temperature toughness down to -60°C).

Centred on adding value to clients’ projects, we supply steel materials alongside full one-stop services including precision cutting, longitudinal seam welding and offshore-grade anti-corrosion coating. Every welded angle steel leaving our factory undergoes rigorous NDT (Non-Destructive Testing) and mechanical testing, with authoritative test reports supplied with each shipment. Supported by our flexible production line, we eliminate minimum order quantity barriers, greatly simplifying on-site work, lowering total project costs and shortening lead times!

The welding procedures and fabricated components of this product range have passed stringent CTOD (Crack Tip Opening Displacement) tests and obtained certifications from three world-leading authorities: SGS, TÜV and DNV. They deliver unmatched safety and commercial compliance for both onshore extreme heavy-load applications and deep-sea high-fatigue environments.

Product Supply Specifications for S960QL / S960QL1 Equal & Unequal Angle Steel
Using our self-developed high-power laser hybrid welding profile production line, Peakkong Special Steel customises angle steel with variable leg widths and wall thicknesses to meet project requirements. Weld seams and the HAZ achieve full penetration, equal strength and premium toughness:

Equal Angles
Custom size range: 50mm × 50mm up to 300mm × 300mm (fully compatible with European EA and British RSA profile geometries)
Thickness (T): 5mm to 35mm

Unequal Angles
Custom size range: 75mm × 50mm up to 450mm × 250mm (fully compatible with European UA profile geometries)
Thickness (T): 6mm to 35mm

NDT & Quality Documentation
Full-scope NDT inspection: Ultrasonic Testing (UT), Magnetic Particle Testing (MT), Penetrant Testing (PT) and Radiographic Testing (RT) are available to guarantee zero defects and full penetration at the bent welded joints.

Complete test documentation: Mill Material Test Certificates (MTC 3.1/3.2), NDT reports and welding procedure qualification documents are provided upon delivery, satisfying strict review requirements from supervisors and consultants.

> Note: Minimum order restrictions are removed. We can rapidly respond, schedule production and deliver for cut-to-length items, non-standard leg width ratios and small-to-medium infrastructure projects.

Core Advantages of S960QL / S960QL1 Equal & Unequal Angle Steel
1. Break mechanical space limits with extreme lightweight design (double load-bearing capacity).
2. CTOD test approved, offering robust protection against brittle fracture.
3. High-power laser hybrid welding eliminates HAZ softening.
4. Optimised material selection for extreme environments (S960QL1 premium low-temperature toughness).
5. Fully customisable profiles.

Typical Applications of S960QL / S960QL1 Equal & Unequal Angle Steel
Long-span spatial lattice trusses and tall towers, premium offshore engineering, offshore wind power and polar operations, wall and core-connection components for high-rise buildings, ultra-heavy construction machinery and lifting equipment.

Contact Us
If you are designing extreme steel structures, large-scale infrastructure, tall towers or premium offshore projects and require world-class ultra-high strength equal/unequal angle steel with no minimum order requirement, CTOD approval, full set of NDT reports and one-stop fabrication services:

If you would like to learn more about S960QL/S960QL1 Ultra-High Strength Equal & Unequal Angle Steel, NDT test reports and coating services, welcome to contact us!

Peakkong Special Steel provides one-stop, advanced, safe and globally certified special steel solutions.