Product Introduction
ZAM Rectangular Steel Pipe is manufactured from zinc-aluminum-magnesium (Zn-Al-Mg) coated steel strip, using cold bending and high-frequency resistance welding (ERW) processes. It is widely used in photovoltaic brackets, steel structure buildings, agricultural greenhouses, warehouse racking, municipal fences, transportation facilities, and industrial equipment manufacturing.
Product Performance Comparison
|
Comparison Item |
GI Pipe |
HDG Pipe |
ZAM Rectangular Pipe |
|
Corrosion Resistance |
Moderate |
Good |
Excellent |
|
Cut Edge Protection |
Poor |
Good |
Excellent |
|
Surface Flatness |
Good |
Moderate |
Excellent |
|
Processing Performance |
Good |
Moderate |
Excellent |
|
Maintenance Requirement |
High |
Medium |
Low |
|
Service Life |
Standard |
Long |
Longer |
|
Life Cycle Cost |
High |
Medium |
Low |
Technical Specifications
|
Item |
Specification |
|
Product Name |
ZAM Rectangular Steel Pipe |
|
Section Type |
Rectangular Hollow Section (RHS) |
|
Manufacturing Process |
Cold Forming + ERW Welding |
|
Coating Type |
Zinc-Aluminum-Magnesium (ZAM) |
|
Coating Weight |
ZM60-ZM350 g/m² |
|
Steel Grade |
DX51D+ZM, DX52D+ZM, S250GD, S280GD, S320GD, S350GD, Q195, Q235, Q355 |
|
Width Range |
20 × 30 mm – 300 × 500 mm |
|
Wall Thickness |
0.8 mm – 12.0 mm |
|
Length |
3 m – 12 m or Customized |
|
Surface Treatment |
Passivation / Anti-fingerprint / Oiled |
|
Standard |
ASTM, EN, JIS, GB, AS/NZS |
|
Tolerance |
According to Standard |
|
Application |
Solar, Construction, Greenhouse, Structure |
|
Inspection Documents |
MTC EN10204 3.1 |
|
Certification |
ISO 9001 |
|
Packaging |
Bundles / Waterproof Package |
|
Origin |
China |
Material and Standards
Available Steel Grades: Supports steel grades such as DX51D+ZM, DX52D+ZM, S250GD, S280GD, S320GD, S350GD, Q195, Q235, and Q355. Different strength grades can be selected according to project requirements.
Standards: Supports international standards such as ASTM, EN, JIS, GB, and AS/NZS. Custom production is also available according to customer drawings or technical agreements.
Quality Documents: Provides MTC EN10204 3.1 material certification and supports third-party inspection services such as SGS, BV, and TUV.
Manufacturing Process
Raw Material Inspection: Chemical composition, mechanical properties, and coating weight of steel coils are tested to ensure that raw materials meet production requirements.
Precision Forming: Employs multi-pass roll forming technology to ensure dimensional accuracy and cross-sectional squareness of steel pipes.
High-Frequency Welding: Utilizes ERW high-frequency welding technology to achieve stable weld quality and good structural strength.
Online Sizing: Controlling dimensional tolerances through a sizing unit improves product consistency.
Finished Product Inspection: Inspecting dimensions, wall thickness, appearance, and mechanical properties before warehousing and packaging.
Custom Processing Capabilities
Custom Specifications: Supporting non-standard sizes, special wall thicknesses, and fixed lengths.
Custom Materials: Supporting different steel grades and mechanical property requirements.
Custom Coatings: Supporting customized ZAM coating weights.
Deep Processing Services: Supporting cutting, punching, welding, bending, and laser processing.
OEM Services: Supporting customization of customer logos, labels, markings, and packaging.
Quality Control
Raw Material Inspection: Inspecting the chemical composition, mechanical properties, and coating parameters of the steel.
Production Process Control: Strictly monitoring forming, welding, and dimensional tolerances to ensure product stability.
Finished Product Inspection: Inspecting dimensions, wall thickness, appearance quality, and mechanical properties.
Third-Party Testing Support: Supporting inspection and testing by third-party organizations such as SGS, BV, and TUV.
Testing Equipment: Equipped with a spectrometer, universal testing machine, coating thickness gauge, salt spray chamber, and hydrostatic testing equipment.
Packaging and Transportation
Export Standard Packaging: Steel strapping, plastic corner protectors, and waterproof packaging reduce the risk of damage during transportation.
Container Shipping: Supports 20GP, 40GP, and 40HQ container shipments.
Customized Packaging: Supports customer-specified markings, labels, and packaging solutions.
FAQ
Q: What is ZAM coating?
A: ZAM is a zinc, aluminum, and magnesium alloy coating with excellent corrosion resistance and cut protection.
Q: What are the advantages compared to ordinary galvanized steel pipes?
A: Better corrosion resistance, longer service life, and lower maintenance costs.
Q: Can it be manufactured according to ASTM or EN standards?
A: Yes, it supports international standards such as ASTM, EN, JIS, and GB.
Q: Can sizes and lengths be customized?
A: Custom sizes, lengths, wall thicknesses, and steel grades are supported.
Q: Can samples be provided?
A: Samples can be provided for testing according to specific specifications.
Q: What quality documents can be provided?
A: MTC EN10204 3.1 and related test reports can be provided.
Q: Does it support third-party inspection?
A: SGS, BV, TUV, and other third-party inspection agencies are supported.
Q: What processing services are provided?
A: Supports cutting, punching, welding, and laser processing.
Q: What are the packaging options?
A: Supports steel strapping, waterproof packaging, and customized export packaging.
Q: Is OEM service supported?
A: Supports logo, label, packaging, and OEM customization services.
Hot Tags: zam rectangular steel pipe, China zam rectangular steel pipe manufacturers, suppliers, factory, Bright Rectangular Steel Pipe, Cold Formed Rectangular Steel Tube, Cold Forming Rectangular Tube, ERW Rectangular Steel Tube, ERW rectangular tube, ZAM Rectangular Steel Pipe
