S690 Grade high strength structural steel Sections(Laser welding)
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  • Provide us with information about your project: material grade, quantity, length, surface finish, specific testing requirements, required dimensional tolerances, and any other relevant details.
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S690 Grade high strength structural steel Sections(Laser welding)
S690 Grade high strength structural steel Sections(Laser welding)
  • Standard: DIN 1024, EN10025-6
  • Fabrication Craftsmanship: ASTM A1069, EN13919
  • Steel grade: S690Q, S690QL, S690QL1
  • Tolerance: EN 10163-3
  • Certificate: According to EN 10204 - Type 2.2 or 3.1b
applications

Peakkong Special Steel S690 Grade high strength structural steel Sections are effectively used in construction,, with good welding performance and bending performance. Structural designers often choose this high-performance, high-tensile strength multi-functional product to reduce structural weight.

Peakkong Special Steel High-strength steel structural Sections have unique advantages in infrastructure and long-span structural projects, including stadiums, high-rise buildings, pedestrian bridges, soundproof screens, steel piles, etc. Using S690 (100 ksi) instead of S355 (50 ksi) reduces weight by 50%, the structure is lighter, the bridge can have fewer piers and support systems, fewer welds, shorter construction, and improved cost effectiveness. Reduce carbon footprint, high-strength steel structural profiles are easy to prefabricate and assemble, improving construction efficiency.

Weight & cost reduction
Using S690 grade steels for structural sections presents numerous advantages for multi-storey and high-rise buildings thanks to their optimum balance of cost and efficiency:
  • reduction of the size of the structural sections, especially for columns
  • lighter buildings with equal structural safety
  • better weldability requiring no or less pre-heating and less welding material
Complete specifications
I-beam specifications
Angle steel specifications
Channel steel specifications
Chemical Composition
Name Mechanical properties (ambient temperature)
Steel name Steel number minimum yield strength ReH(MPa) tensile strength Rm(MPa) Minimum elongation at break
S690QL 1.8931 Nominal thickness(mm) Nominal thickness(mm)
>3 <50 >50 <100 >100 <150 >3 <50 >50 <100 >100 <150
690 650 630 770/940 760/930 710/900 14
Mechanical behavior
%
C 0.20
Si 0.80
Mn 1.70
P 0.025
S 0.015
N 0.015
B 0.0050
Cr 1.50
Cu 0.50
Mo 0.70
Nb 0.06
Ni 2.0
Ti 0.05
V 0.12
Zr 0.15
V-notch impact test
grade Sample direction @0℃ @-20℃ @-40℃ @-60℃
S690QL vertical 50J 40J 30J
horizontal 35J 30J 27J
quality assurance
  • As a structural profile manufacturer, our steel products have received the CE marking and have been tested to the highest standards, providing quality and assurance to the construction market.
  • We are ISO 9001:2015 certified, and all materials are tested in our independently accredited ISO 17025 testing laboratory to the highest standards, ensuring full traceability.
  • Our S690QL High-Strength Sections are manufactured according to EN 10025-6. Following this specification, strict impact tests are conducted at specified temperatures to ensure full compliance with construction product regulations.
  • We are also certified under the environmental and sustainability standard BES 6001, which ensures our commitment to responsible sourcing of materials.
Technical Support
  • Our experienced team of laser welding experts provides specialized technical support to our customers, including detailed high-strength low-alloy profile solutions for addressing specific processing challenges and developing new and more advanced steel grades for increasingly demanding applications.
Ordering and delivery

PeakKong Special Steel applies Peakkong delivery conditions during the delivery process, and adds that both parties will comply with applicable legal and regulatory requirements and will not engage in any unethical business practices.
The products produced by PeakKong Special Steel.S690 Grade high strength structural steel Sections(Laser welding) The technical delivery conditions of our products meet the respective requirements. Dimensions and tolerances are defined according to the relevant steel material standards. Engineering work complies with the respective standards.
S690 Grade high strength structural steel Sections(Laser welding) Equipped with strapping tags and Peakkong Special Steel product tags to achieve comprehensive traceability and identification. According to the corresponding steel standards, corresponding material certificates will be provided.

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YamKong Special Steel Co., Limited
Peak Kong Special Steel Co., Limited

Room A3, 29th Floor, TML Plaza, 3 Hoi Shing Road, Tsuen Wan.
T: +852-29811161
E: sales@peakkong.com

YamKong Special Steel Co., Limited
Peak Kong Special Steel Technology (Guangdong) Co., Ltd.

No. 1 Building 1, No. 6 Xiegang Jinhai Road, Xiegang Town, Dongguan City, Guangdong Province.
T: 0769-82869307
E: admin@peakkong.com