2507 1.4410 Super Duplex Stainless Steel Equal Unequal Angle Bar Structural Section

Laser Hybrid Welding Breaks the 30 mm Penetration Limit • Green Low-Carbon Technology for Global Specialty InfrastructurePeak Kong Special Steel applies innovative laser hybrid welding technology and proprietary automated flexible production lines to achieve high-volume, high-precision manufacturing of 2507 / 1.4410 Super Duplex Stainless Steel Equal and Unequal Angle Sections.
Our innovative laser welding process replaces conventional hot-rolling production and overcomes the industry limitations associated with forming large-size and thick-wall duplex stainless steel profiles by hot rolling. We successfully achieve 100% full-penetration welding for weld thicknesses up to 30 mm. This provides structural strength comparable to integrally formed sections while offering exceptional flexibility for small-batch, multi-size and highly customized non-standard profiles that conventional hot rolling cannot efficiently accommodate.
The product range is designed to meet stringent international requirements including EN, ASTM, JIS and BS, supporting demanding structural, marine and industrial applications worldwide.
Core Technical Capabilities & Compatibility with Global Design StandardsCompatible with Major International Structural Design Codes:
Our products are designed to support Eurocode 3 (EN 1993) for stainless steel structures, as well as AISC 370 for structural stainless steel design and ASCE 8 for cold-formed stainless steel structural design. Whether for thick-wall heavy-load structures or precision-engineered cross-sections, these standards provide engineers worldwide with reliable foundations for structural calculations and design.
Comprehensive International Manufacturing Standards:
Production and material control are strictly aligned with EN 10088-5 for stainless steel structural sections and ASTM A484 / A484M for general requirements applicable to stainless steel products.
Authoritative Welding Procedure Qualification:
Welding Procedure Qualification Records (WPQR) are qualified in accordance with EN ISO 15614-11 for laser welding and EN ISO 15614-14 for hybrid welding. Our welding capabilities and technical processes undergo audits and certification by internationally recognized organizations including SGS, TÜV and DNV, supporting high weld integrity, strength and low-temperature toughness.
100% Quality Traceability & International Market Access:
Each shipment can be supplied with official inspection reports and non-destructive testing documentation, together with complete Material Test Certificates (MTC 3.1 / 3.2). CE and UKCA requirements can also be supported to facilitate international engineering projects and tender participation.
Support for Green & Low-Carbon Engineering:
The product range is manufactured with low-carbon and resource-efficient production principles. Environmental Product Declaration (EPD) documentation and Life Cycle Assessment (LCA) carbon-footprint evaluation can be provided upon customer request.
2507 / 1.4410 Super Duplex Stainless Steel Structural Angle SpecificationsPeak Kong Special Steel overcomes the limitations of conventional hot-rolling dies and can manufacture the following standardized load-bearing sections in production quantities or according to customer drawings. Weld penetration thickness can reach 30.0 mm.
Equal Angles
Size: 40 × 40 mm to 300 × 300 mm
Thickness: 5.0 mm to 30.0 mm
Unequal Angles
Size: 50 × 30 mm to 400 × 200 mm
Thickness: 5.0 mm to 30.0 mm
Marine Angles / Bulb Angles
Size: 60 × 40 mm to 350 × 150 mm
Thickness: 5.0 mm to 30.0 mm
Custom Profiles
Precision manufacturing according to customer drawings and technical specifications, with weld penetration thickness up to 30.0 mm.
Non-Standard Customization Advantages:
Conventional hot-rolling die limitations are eliminated, enabling the development of complex open, concave, convex, asymmetric and other special cross-sections. All specifications support customized lengths, precision sawing, polishing, pickling and passivation.
Premium Material Advantages of 2507 / 1.4410 Super Duplex Stainless SteelHigh Strength & Structural Lightweighting:
With a yield strength of approximately 550 MPa or higher, 2507 / 1.4410 offers substantially higher strength than conventional 316L stainless steel. Within Eurocode 3 or AISC design frameworks, its higher strength can enable optimized and potentially thinner structural sections, reducing overall structural weight and material consumption while improving cost efficiency for large-scale infrastructure projects.
Exceptional Corrosion Resistance for Long-Service Applications:
With a high chromium-molybdenum-nitrogen alloying system and a typical PREN ≥ 42, 2507 / 1.4410 provides outstanding resistance to pitting, crevice corrosion and chloride-containing environments. It is particularly suited to humid coastal environments, direct seawater exposure and aggressive chemical atmospheres, while offering strong resistance to stress corrosion cracking (SCC). Properly engineered and maintained systems can be designed for decades of service with significantly reduced maintenance requirements.
Contact UsFor 2507 / 1.4410 Super Duplex Stainless Steel Equal Angles, Unequal Angles and Custom Angle Profiles, including processing services, technical drawing review, custom profile development or the latest quotation, please contact Peak Kong Special Steel.
For global green infrastructure, choose Peak Kong Special Steel.
Peak Kong Special Steel provides advanced, safety-focused and internationally certified specialty steel solutions, integrating material supply, precision fabrication, laser hybrid welding, inspection and customized engineering services into a comprehensive one-stop solution.