135-ton high-value round steel exported to South Korea, tapping into developed countries ‘construction engineering market.

Partner: A major South Korean construction group.
Cooperation timeline: Q22025.
Product specifications: 42CrMoA high-strength round steel (diameter 32-60mm, seismic grade HRB400E).
Application scenario: Mini pile manufacturing for Incheon commercial complexes.
Project background: This is a key project in Incheon North Port New District, South Korea. As core structural components of building foundations, mini piles must withstand vertical loads from high-rise buildings and seismic forces, requiring stringent specifications for tensile strength, impact toughness, and dimensional accuracy. The client, long reliant on European suppliers, sought alternative resources due to cost control and delivery cycle challenges.
Key highlights:
• International standard compliance: Strict adherence to South Korea’s KS D 3504 standard, with multi-stage flaw detection ensuring internal defects-free products. Tensile strength reaches 1080MPa, bending deviation ≤3mm/m, all certified by Korea Institute of Construction Technology (KICT).
• Deep technical collaboration: Customized services including precision sawing and chamfering to meet industry-specific requirements, reducing secondary processing. Technical advisors dispatched to South Korea for installation coordination.
• Compliance assurance: Pre-arranged customs policies and environmental certifications for imported steel, assisting with KC certification and origin certificate filing to ensure smooth customs clearance with zero compliance risks.
Customer feedback:
“In strict quality audits, the performance of China round steel is on par with European products, but the delivery cycle is shortened by 40%, demonstrating a clear cost advantage. This is our first collaboration with a China steel enterprise, and the professional technical support and efficient fulfillment capabilities have established full trust between us. We will expand more project collaborations in the future.” — Customer Technical Director Jin Minzhe