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- Jinan City, Shandong Province
- scarlett@jyh-steel.com
- +8613153179337. whatapp:+8613153179337

Galvanized Steel Z Section
JNXYH Metal manufactures and supplies precision cold-formed Galvanized Steel Z Sections (Z Purlins) for global steel distributors, contractors, and prefabricated building fabricators.
Description
ASTM / EN Standard Galvanized Z Purlins for Steel Buildings, Roofing Systems & Solar Structures
JNXYH Metal manufactures and supplies precision cold-formed Galvanized Steel Z Sections (Z Purlins) for global steel distributors, contractors, and prefabricated building fabricators.
Backed by 10+ years of export experience and projects delivered across 50+ countries, we provide dependable, factory-direct structural solutions for international bulk procurement.
Technical Specifications
|
Specification Item |
Details |
|
Product Name |
Galvanized Steel Z Section (Z Purlin / Zed Purlin) |
|
Material Grades |
Carbon Steel: Q235, Q355, S350GD, S450GD |
|
Manufacturing Process |
Precision Cold Roll Forming |
|
Thickness Range |
1.5mm - 6.0mm |
|
Section Height |
100mm - 400mm |
|
Length |
Cut-to-length as specified |
|
Surface Treatment |
Hot Dip Galvanized / Pre-Galvanized |
|
Zinc Coating Weight |
Z60 - Z275 g/m² (Custom weights available) |
|
Compliance Standards |
ASTM, EN, DIN, GB |
Key Advantages
Optimized Structural Performance
The engineered Z-profile provides superior bending resistance and a high strength-to-weight ratio, making it ideal for long-span steel framing while reducing total building dead weight.
Continuous Span Capability
Unlike standard C profiles, Z sections allow for overlapping connections over intermediate supports, significantly increasing load-bearing continuity and installation efficiency.
Reliable Corrosion Protection
Uniform zinc coatings (Hot Dip or Pre-Galvanized) create a durable barrier against moisture and aggressive atmospheric elements, extending service life in outdoor environments.
Guaranteed Batch Consistency
Precision cold roll forming technology ensures uniform shape, accurate section dimensions, and smooth surface finishes across massive production runs to prevent on-site installation issues.
Customization & Secondary Processing
Every construction project has unique structural and engineering demands. We offer complete custom fabrication tailored to your CAD drawings:
Dimensions: Customized height, flange width, lip size, and material thickness.
Punching & Slotting: Automated precision punching for connection holes, anchor bolts, and custom slots.
Surface Finishes: Standard galvanizing with options for secondary protective top-coats.
Manufacturing & Quality Control
Production Workflow:
Raw Material Inspection → Precision Roll Forming → Punching & Cutting → Galvanizing → Final Audit
Material Traceability: Verification of chemical composition, yield strength, and thickness tolerances prior to production.
Strict Quality Assurance: Continuous dimensional monitoring for straightness, profile accuracy, and coating thickness.
Documentation & Compliance: ISO 9001 certified. Mill Test Certificates (MTC) provided per batch. Third-party inspection (SGS, BV, TÜV) fully supported.
Core Applications
Steel Buildings
Roof purlins, wall girts, and secondary framing for industrial warehouses, logistics parks, and commercial complexes.
Solar Mounting Systems
Rigid structural framing for ground-mounted solar farms, agricultural PV structures, and industrial rooftop arrays.
Agricultural Structures
Rust-resistant framing for modern farm sheds, storage facilities, and greenhouses.
Z Purlin vs. C Purlin Comparison
|
Feature |
Z Section (Z Purlin) |
C Section (C Purlin) |
|
Profile Geometry |
Z Shape |
C Shape |
|
Connection Method |
Overlapping (Continuous span) |
End-to-end (Simple span) |
|
Structural Continuity |
Excellent |
Standard |
|
Long-Span Performance |
Superior |
Moderate |
Packaging & International Logistics
- Export-standard, steel-strapped bundles with moisture-resistant wrapping.
- Clear bundle mapping and labeling for fast job-site sorting.
- Container-optimized loading to minimize ocean freight costs (FOB, CIF, DDP terms supported).
FAQ
Hot Tags: galvanized steel z section, China galvanized steel z section manufacturers, suppliers
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