Guangdong LiYou Steel Structure Engineering Co., Ltd. +8619147784007 liyousteelstructure@outlook.com
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✅ Direct Mill Relationships with Baowu and Ansteel
✅ Technical Support for material selection and welding procedures
✅ Just-in-Time Inventory of Q460/Q550 grades
✅ Complete Documentation including EN 10204 3.2 certificates
| Quantity: | |
|---|---|
Steel
Online technical support
Warehouse
Guangdong, China
Warehouse
3 years
total solution for projects
LYB-001
Warehouse
Industrial
CE Certification
Industrial Commercial
C.Z Shape Steel Channel
Sliding Door
Customized Color
Sandwich Panel Optional
Aluminum Alloy Sliding Window
SAP2000/AutoCAD /PKPM /3D3S/TEKLA
Hot Dip Galvanized
25-60 days
High strength structural steel refers to specialized alloys with yield strengths exceeding 460MPa, offering superior load-bearing capacity while maintaining weldability and toughness. At Liyou Steel, we supply certified high-strength steels that enable lighter, more efficient structures without compromising safety.
Q460: Minimum yield strength 460MPa
Q550: Earthquake-resistant structures
Q690: Ultra-high strength for special applications
Q890: Used in heavy machinery
| Chinese (GB) | ASTM (USA) | EN (Europe) | JIS (Japan) |
|---|---|---|---|
| Q460 | A572 Gr.65 | S460 | SM570 |
| Q550 | A913 | S550 | - |
| Q690 | A514 | S690 | HT780 |
✔ Weight Reduction (Up to 30% lighter than conventional steel)
✔ Space Savings (Thinner sections with equal strength)
✔ Seismic Performance (Excellent energy absorption)
✔ Lifecycle Economy (Less material = lower transport/construction costs)
Technical Comparison:
| Property | Q235 (Mild Steel) | Q460 (High Strength) |
|---|---|---|
| Yield Strength | 235 MPa | 460-550 MPa |
| Carbon Content | 0.17-0.22% | 0.18-0.20% |
| CEV (Weldability) | 0.39 max | 0.45 max |
| Price Premium | Base price | +25-40% |
Core columns in 50+ story towers
Transfer trusses
Outrigger systems
Long-span bridge girders
Offshore oil platforms
Crane runway beams
Stadium roof supports
Airport terminal roofs
Nuclear containment vessels
Chemical Analysis: Optical emission spectrometry
Mechanical Testing: 100% batch testing
NDT Inspection: UT, MT, PT available
Certifications: Mill test certificates + third-party verification
Project Showcase:
Shanghai Tower (Core Structure)
Steel Grade: Q460GJC (Chinese high-performance steel)
Quantity: 12,000 tons
Special Requirements: Z-direction performance, -40°C impact test
⚠ Special Handling Required For:
Cutting: Pre-heating for thickness >40mm
Welding: Low-hydrogen electrodes required
Forming: Minimum bend radii 3x material thickness
Protection: Thermal spray aluminum for corrosive environments
High strength structural steel refers to specialized alloys with yield strengths exceeding 460MPa, offering superior load-bearing capacity while maintaining weldability and toughness. At Liyou Steel, we supply certified high-strength steels that enable lighter, more efficient structures without compromising safety.
Q460: Minimum yield strength 460MPa
Q550: Earthquake-resistant structures
Q690: Ultra-high strength for special applications
Q890: Used in heavy machinery
| Chinese (GB) | ASTM (USA) | EN (Europe) | JIS (Japan) |
|---|---|---|---|
| Q460 | A572 Gr.65 | S460 | SM570 |
| Q550 | A913 | S550 | - |
| Q690 | A514 | S690 | HT780 |
✔ Weight Reduction (Up to 30% lighter than conventional steel)
✔ Space Savings (Thinner sections with equal strength)
✔ Seismic Performance (Excellent energy absorption)
✔ Lifecycle Economy (Less material = lower transport/construction costs)
Technical Comparison:
| Property | Q235 (Mild Steel) | Q460 (High Strength) |
|---|---|---|
| Yield Strength | 235 MPa | 460-550 MPa |
| Carbon Content | 0.17-0.22% | 0.18-0.20% |
| CEV (Weldability) | 0.39 max | 0.45 max |
| Price Premium | Base price | +25-40% |
Core columns in 50+ story towers
Transfer trusses
Outrigger systems
Long-span bridge girders
Offshore oil platforms
Crane runway beams
Stadium roof supports
Airport terminal roofs
Nuclear containment vessels
Chemical Analysis: Optical emission spectrometry
Mechanical Testing: 100% batch testing
NDT Inspection: UT, MT, PT available
Certifications: Mill test certificates + third-party verification
Project Showcase:
Shanghai Tower (Core Structure)
Steel Grade: Q460GJC (Chinese high-performance steel)
Quantity: 12,000 tons
Special Requirements: Z-direction performance, -40°C impact test
⚠ Special Handling Required For:
Cutting: Pre-heating for thickness >40mm
Welding: Low-hydrogen electrodes required
Forming: Minimum bend radii 3x material thickness
Protection: Thermal spray aluminum for corrosive environments
