What sound reduction does this system achieve?

The steel-core aluminium-clad system measured Rw 46 dB in third-party testing (report CS425113133AQ734Z), against a project requirement of Rw 42 dB or higher. Acoustic performance on your project also depends on the glass build-up, the frame, the seals and how the partition meets the structure, so the figure is confirmed against your requirement.

Why use a steel core instead of all-aluminium?

A steel core raises stiffness, which lets the system hold larger glass panels and longer spans with less frame depth, and it helps acoustic performance. The aluminium cladding keeps the visible surface and finish consistent with an all-aluminium system.

What other performance was tested on this system?

Alongside the measured Rw 46 dB, the same report records wind load Class 5 and water tightness Class 4, with fire reaction Class B1 for the materials. The full data is on the certificates page.

Steel-core Aluminium-Clad Partition Systems

Name: Steel-core aluminium-clad glass partition system
Brand: Yige
Availability: InStock

Steel-core aluminium-clad partition systems

An aluminium face on the outside, galvanised steel in the core. Two series make up this system: M-V83 at 83 mm ±2 mm and M-100 at 100 mm. Both are chosen where a partition runs full height and has to resist deformation. Measured sound reduction on the M-V83 partition is Rw 46 dB (report no. CS425113133AQ734Z).

How the frame is built

The section is a composite. Aluminium gives the visible face and the finish; steel gives the rigidity that a single-material extrusion cannot reach at this height.

Outer face — aluminiumExtruded aluminium profiles carry the visible finish. On M-V83 the surface is electrostatic powder coated at 60 to 80 μm, with adhesion tested to GB/T 9286.

Inner core — galvanised steelBehind the aluminium face sits a reinforced galvanised steel frame with rock wool infill. The steel takes the load; the aluminium takes the finish.

Reverse main runnersThe main runners behind the back face are galvanised steel square tube, so the primary structure of the partition is steel rather than aluminium.

Where it is specifiedFull-height office partitions, long uninterrupted runs, and rooms where the frame has to resist deformation — finance and management offices, office refurbishment, commercial interiors and laboratories.

The two series

M-V83 is built as a full-height partition, with the glass build-up configured to the project. M-100 is the heavier steel-aluminium section, with standard double glazing and a frame that adjusts on site.

83 mm ±2 mm

M-V83 series

A steel-core double-glazed partition, 83 mm ±2 mm overall, built as a full-height system. Aluminium profiles close the visible faces, and the galvanised steel frame with its rock wool infill sits inside.

The glass build-up is configured to the project, so the same 83 mm frame can be specified to suit the room behind it. Measured sound reduction on this partition is Rw 46 dB, against a requirement of Rw 42 dB or above.

100 mm

M-100 series

A 100 mm steel-aluminium partition. Steel reinforcement is built into the frame, which raises the stiffness of the section without changing the aluminium finish.

Standard double glazing is 5 + 5 mm toughened glass with a 12 mm air gap, to GB/T 11944. Frame height is under 3000 mm, and the horizontal and vertical profiles join with pin-and-sleeve connectors, so bays assemble quickly on site.

Documented configurations: single-glazed panoramic, aluminium-framed grid, and double-glazed with integrated blinds. Switchable privacy glass (PDLC) can also be specified.

Series	Overall thickness	Frame	Standard glazing	Frame height
M-V83	83 mm ±2 mm	Aluminium-clad galvanised steel frame, rock wool infill, galvanised steel square-tube main runners	Configured to the project	Full height, set by the drawing
M-100	100 mm	Aluminium frame with internal steel reinforcement, pin-and-sleeve joints	Double-glazed 5 + 5 mm toughened glass, 12 mm air gap (GB/T 11944)	Under 3000 mm, with 0 to 5 mm width and ±4 mm height adjustment on site

Measured performance

The steel-core system is the one we can back with a measured acoustic figure. Report numbers are published so that consultants, main contractors and overseas buyers can verify them.

Property	Standard	Result
Sound reduction, M-V83 steel-core partition, 83 mm	GB/T 50121-2005	Rw 46 dB measured (requirement Rw ≥ 42 dB)
Wind load resistance	GB/T 7106-2019	Class 5
Water tightness	GB/T 7106-2019	Class 4
Reaction to fire	GB 8624-2012	Class B1

Report no. CS425113133AQ734Z covers the partition system; report no. CS925706226AQ947Z covers the aluminium profiles. Both are listed on the certificates and test reports page.

All-aluminium or steel-core?

Most projects contain both. The decision is usually made bay by bay, on height, span and how the partition will be used.

RigidityAn all-aluminium frame is extruded in one material and stays light. A steel-core frame adds galvanised steel to the section, so it resists deflection over tall runs and wider bays, and stays true after fixing.

CostAll-aluminium is the simpler build — one extrusion, one material, fewer assembly steps — so it costs less to supply. Steel-core uses more material and more assembly time, and is specified where the drawing asks for the extra rigidity.

Acoustic separationDouble-glazed steel-core assemblies carry our measured result: Rw 46 dB on the M-V83 partition.

SightlinesAll-aluminium frames run from 25 mm to 84 mm. Steel-core frames are 83 mm and 100 mm, so allow a deeper reveal at the head, the sill and the jambs.