Materials Compatible with ERW Tube Mills

ERW tube mills can process a variety of materials, each requiring specific adjustments to parameters like welding frequency, heat input, and cooling rates. Shijiazhuang Faith Machinery Co., Ltd designs mills to handle diverse materials while maintaining quality and efficiency.

Common Materials Processed

• Carbon Steels: Including ASTM A36, API 5L grades (X42–X70), and SS400. These are widely used in construction, water pipelines, and structural applications due to their strength and weldability.

• Stainless Steels: Grades such as 304/L and 316/L offer corrosion resistance for food processing and chemical industries. Welding requires inert gas shielding to prevent oxidation.

• Low-Alloy Steels: HSLA (High-Strength Low-Alloy) steels provide enhanced mechanical properties for automotive and heavy machinery components.

• Non-Ferrous Metals: Aluminum and copper alloys can be processed with higher frequency welding (450–600 kHz) and specialized electrode materials.

Material-Specific Considerations

• Carbon Content: Higher carbon steels require controlled cooling to avoid excessive hardness and cracking.

• Surface Coatings: Galvanized steels need parameters that prevent zinc vaporization during welding5.

Our mills are engineered to switch between materials with quick-change tooling and recipe-driven controls, ensuring versatility for various industrial needs.

3. Selecting the Right ERW Mill Specifications

Choosing an ERW mill requires evaluating production needs, material characteristics, and desired output. Shijiazhuang Faith Machinery Co., Ltd provides customized solutions based on technical parameters and operational goals.

Key Selection Criteria

• Product Range: Determine the required pipe diameters (e.g., 10–508 mm) and wall thicknesses (e.g., 0.4–16 mm). Our mills cater to sizes from small precision tubes to large-diameter pipes.

• Production Capacity: Consider annual tonnage and shift patterns. High-speed mills can achieve speeds up to 120 m/min for thin-wall tubes.

• Automation Level: Automated coil handling, NDT integration, and remote monitoring reduce manual intervention and improve consistency.

Technical Specifications

• Forming Stands: 6–24 stands for progressive forming.

• Welding Power: 60–1,000 kW based on material thickness.

• Control Systems: PLC with HMI for parameter adjustment and diagnostics.

Ancillary Equipment

• End-facing machines, hydrostatic testers, and bundling systems may be integrated for complete production lines5.

We recommend conducting a feasibility study to align mill specifications with product goals, ensuring optimal performance and return on investment.