Alloy Steel & GRPU Frame

Quick answer

An alloy-steel solar frame is the structural edge profile that gives a PV module mechanical strength and load resistance. ZOEAST PV alloy-steel frames use a double-toothed corner key with more than 800 N pull-out force, eliminate galvanic corrosion by matching corner and frame material, and run on existing framing lines without modification.

Alloy Steel Frame

Steel-Flex Synergy

With a unique structure, the frame combines steel's strength with its elastic properties, improving module load capacity and enhancing system safety.

Super safe -Steel double toothed bite angle code

Precision assembly, no need to modify production equipment. Explosion-proof, no glass breakage risk during framing. Anti-frame detachment, corner pull-out force >800N Prevents galvanic corrosion, same material for corner pieces and frame.

GLASS FIBER REINFORCED POLYURETHANE(GRPU)

Frequently asked questions

What is an alloy-steel solar frame?

It is the structural edge profile of a PV module, made from alloy steel instead of the usual anodised aluminium. ZOEAST PV frames combine steel strength with elastic behaviour for higher load capacity and better impact safety.

How strong is the corner joint?

The double-toothed bite corner key resists pull-out above 800 N. Corner pieces and frame use the same material, which avoids galvanic corrosion, and the joint will not detach or shatter the glass during framing.

Can the frame run on existing production lines?

Yes. The profile and corner key are designed for precision assembly on unmodified framing equipment, so a module line can switch without new tooling.

What is a GRPU frame?

GRPU stands for glass-fibre reinforced polyurethane. It is a non-metallic frame material used where electrical insulation and corrosion resistance matter, for example on high-voltage or coastal installations.

Still need the exact specification? Send your inquiry to the ZOEAST PV team and we will reply with datasheets, MOQ and lead time.

About this page

Written and reviewed by Zoeast PV Editorial Team at ZOEAST PV CO., LTD, based on factory test data from the Yixing, Jiangsu production lines. Published December 4, 2025, last updated October 29, 2026. Questions and corrections: sales@zoeastpv.com.