Chromated / Non-Chromated Galvalume Steel Coil

Galvalume Steel Coil · 55% Al-Zn-Si Coating · DX51D+AZ / S250GD+AZ / S350GD+AZ / S550GD+AZ · 0.14–2.0 mm · AZ80–AZ150 · Slitting & Cut-to-Length Available

Product Identity

Chromated / non-chromated surface treatment is the anti-corrosion and paint-adhesion passivation applied to the Galvalume coating.

Technical Selection

• SURFACE: Surface treatment per specification: chromated or non-chromated.

Key Specifications

Key Features

• Chromated / non-chromated passivation — this is the selection-defining characteristic of this listing, alongside the family option list below.

Key Features

• 55% Al-Zn alloy coating — enhanced corrosion resistance and heat reflectivity versus plain zinc coating, suited to exposed roofing and cladding.
• Grade range for different end uses — DX51D+AZ for general forming; S350GD+AZ and higher structural grades for load-bearing profiles, purlins and decking.
• Flexible coating mass — AZ80 to AZ150 to match the service environment and expected lifespan.
• Clear surface specification — spangle (zero / minimized / regular) and surface treatment (oiled / dry / chromated / non-chromated / anti-fingerprint) specified separately.
• Slitting & cut-to-length — supplied to your exact width and length, reducing additional handling before roll forming.
• Traceable material — mill test certificates and batch identification available according to order requirements.

Applications

• Primary: Coating-adhesion and storage-corrosion control.

Applications

• Metal roofing sheet and corrugated roofing production
• Wall cladding and liner panels
• Roll-formed building and structural profiles
• C and Z purlins using suitable structural grades (S350GD+AZ / S550GD+AZ)
• Decking and floor deck profiles
• Photovoltaic mounting and support components

Packaging & Delivery

Seaworthy export packing to protect surfaces and edges during ocean transport. Typical lead time is 20–30 days after commercial confirmation. Shipment can be arranged from Shanghai, Tianjin, Qingdao or Weifang.

About Kyzotech

Kyzotech is the export brand of Nanjing Shunshuo New Material Technology Co., Ltd. — a manufacturer of steel structure building materials and enclosure systems, established in 2016.

Kyzotech is our export brand; our website and email are hosted at metalroofsystems.com.

FAQ

Q1: Is this supplied as a standard stock item? Yes, this surface specification is confirmed on request; grade, dimension and processing are matched to your order.

Q2: Can you customize to my project requirements? Yes. Grade, dimension, coating and processing can be matched to your drawings and application requirements.

Q3: What documentation do you provide? Mill test certificates, packing list and shipment documents. Third-party inspection can be arranged on request.

Q4: What is your MOQ and lead time? MOQ and lead time are confirmed per grade and specification; typical lead time is 20–30 days.

RFQ Checklist

When you enquire, specify your surface together with grade, dimension, quantity, coating requirement and destination port.