ASTM A572 Steel Pipe
ASTM A572 High-Strength Structural Steel Pipe Manufacturer
Huayang Steel Pipe manufactures high-strength structural steel pipes using ASTM A572 high-strength low-alloy (HSLA) steel plates. Combining advanced JCOE and RBE forming technologies with double-sided submerged arc welding, Huayang produces large-diameter welded steel pipes for structural, offshore, bridge, foundation, and industrial applications.
ASTM A572 is a specification for high-strength low-alloy structural steel. Due to its excellent strength-to-weight ratio, weldability, and toughness, ASTM A572 steel is widely used as the base material for manufacturing large-diameter structural steel pipes.
Huayang provides customized ASTM A572 steel pipe solutions with comprehensive fabrication, inspection, anti-corrosion coating, and machining services to meet project-specific requirements.
ASTM A572 Available Grades
| Standard | Grade | Minimum Yield Strength | Typical Applications |
|---|---|---|---|
| ASTM A572 | Grade 42 | 290 MPa | General structural engineering |
| ASTM A572 | Grade 50 | 345 MPa | Bridges, buildings, piling, offshore structures |
| ASTM A572 | Grade 55 | 380 MPa | Heavy structural applications |
| ASTM A572 | Grade 60 | 415 MPa | High-load structures |
| ASTM A572 | Grade 65 | 450 MPa | Large infrastructure and industrial projects |
Grade 50 is the most commonly specified material for welded structural steel pipes.
ASTM A572 Steel Pipe Product Range
Based on Huayang manufacturing capability.
| Product Type | Manufacturing Process | Outside Diameter | Wall Thickness | Length |
|---|---|---|---|---|
| ASTM A572 LSAW Steel Pipe | Double-Sided SAW | Φ406.4–Φ2800 mm | 7–50 mm | 6–12.5 m |
| ASTM A572 ERW Steel Pipe | HFW / ERW | Φ48–Φ660.4 mm | 2.0–22 mm | 6–27 m |
| ASTM A572 Hot-expanded Steel Pipe | Hot Expansion | Φ230–Φ820 mm | 5–20 mm | Customized |
ASTM A572 Steel Pipe Specification
| Item | Specification |
|---|---|
| Material Standard | ASTM A572/A572M |
| Product | Carbon HSLA Steel Pipe |
| Manufacturing Process | HFW / LSAW / Hot Expansion |
| Available Grade | Grade 42 / 50 / 55 / 60 / 65 |
| Outside Diameter | Φ48–Φ2800 mm |
| Wall Thickness | 2.0–50 mm |
| Length | 6–27 m or Customized |
| Pipe End | Plain End / Beveled End |
ASTM A572 Chemical Requirements
Typical chemical composition for ASTM A572 Grade 50.
| Element | Maximum Content |
|---|---|
| Carbon | 0.23% |
| Manganese | 1.35% |
| Phosphorus | 0.040% |
| Sulfur | 0.050% |
| Silicon | 0.40% |
| Columbium (Niobium) / Vanadium | Added as required for HSLA properties |
ASTM A572 Mechanical Requirements
Typical mechanical properties.
| Property | Grade 42 | Grade 50 | Grade 55 | Grade 60 | Grade 65 |
|---|---|---|---|---|---|
| Yield Strength (Min) | 290 MPa | 345 MPa | 380 MPa | 415 MPa | 450 MPa |
| Tensile Strength (Min) | 415 MPa | 450 MPa | 485 MPa | 520 MPa | 550 MPa |
Manufacturing Process
Huayang manufactures ASTM A572 steel pipes through advanced production technologies.
| Production Step | Description |
|---|---|
| Steel Plate Inspection | Chemical and mechanical verification |
| Edge Milling | Plate edge preparation |
| Forming | JCOE / RBE / HFW Forming |
| Welding | Double-Sided SAW or High-Frequency Welding |
| Expansion | Mechanical expansion when required |
| Final Inspection | Comprehensive dimensional and NDT inspection |
Inspection and Testing
Each ASTM A572 steel pipe undergoes comprehensive inspection.
| Inspection Item | Test Method |
|---|---|
| Chemical Analysis | Spectrometer |
| Tensile Test | Mechanical Testing |
| Yield Strength Test | ASTM Mechanical Test |
| Ultrasonic Testing | UT |
| Radiographic Testing | RT upon request |
| Hydrostatic Test | Available |
| Dimensional Inspection | Diameter, Thickness, Length |
| Surface Inspection | Visual Examination |
Surface Treatment and Processing
Huayang offers complete downstream processing services.
| Service | Capability |
|---|---|
| FBE Coating | Available |
| 2PE Coating | Available |
| 3PE Coating | Available |
| 2PP / 3PP Coating | Available |
| Internal Epoxy Coating | Available |
| Pipe Expansion | Available |
| Pipe Cutting | Available |
| Beveling | Available |
| Hydrostatic Testing | Available |
Anti-Corrosion Processing Capacity
| Item | Production Range |
|---|---|
| Outside Diameter | Φ159–Φ1626 mm |
| Wall Thickness | 4–40 mm |
| Length | 8–16 m |
Applications of ASTM A572 Steel Pipe
ASTM A572 steel pipes are widely used in:
- Bridge engineering
- Offshore structures
- Building steel structures
- Foundation piling
- Wind power projects
- Port construction
- Industrial plants
- Mining facilities
- Heavy equipment structures
- Infrastructure engineering
The excellent combination of high strength, weldability, and toughness makes ASTM A572 steel pipe an ideal solution for demanding structural applications.
Why Choose Huayang
| Advantage | Description |
|---|---|
| Maximum Diameter | Φ2800 mm |
| Maximum Wall Thickness | 50 mm |
| Manufacturing Process | HFW, LSAW, Hot Expansion |
| Forming Technology | JCOE & RBE |
| Inspection | UT, RT, Hydrostatic Test |
| Processing Services | Coating, Cutting, Expansion |
| Customized Manufacturing | According to Drawings and Project Specifications |