Cable Armour

Hot-Dip Galvanized Steel Strip for Armouring and Fittings

Steel thickness: 0.74–0.84 mm
Steel width: 59.30–60.40 mm
Tensile strength: 295–410 N/mm²
Zinc coating weight: ≥40 g/m² (average)
Elongation: ≥20%
Surface: Hot-dip galvanized with uniform coating

Hot-dip galvanized steel strip for armouring and fittings is designed for cable protection and heavy-duty applications. It features excellent corrosion resistance, consistent coating thickness, and optimal tensile performance to meet international standards.

Made to order to your diameter, coating, tensile grade and standard, and supplied worldwide — request a quote for price, minimum order quantity and lead time.

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Specifications

Item	Unit
Technical Requirement	Test Result
Steel Thickness	mm
0.74–0.84	0.79
Steel Width	mm
59.30–60.40	59.68
Tensile Strength	N/mm²
295–410	366
Elongation	%
≥20	34
Zinc Coating Weight (avg.)	g/m²
≥40	48
Zinc Coating Weight (min.)	g/m²
≥34	47

Technical Specifications

Item	Unit	Technical Requirement	Test Result
Diameter	mm	2.5 ± 0.06	2.49
Out-of-Roundness	mm	≤ 0.06	0.02
Tensile Strength	N/mm²	345–495	454
Elongation (L₀=250mm)	%	≥10	13
Twist (L₀=150mm)	Turns/360°	≥20	48
Zinc Coating Weight	g/m²	≥210	328
Surface Quality	-	Uniform, continuous, no cracks or defects	Passed

Tensile Strength

Tensile strength: 295–410 N/mm² with elongation ≥20%.

Features

High corrosion resistance due to uniform zinc coating
Optimized tensile strength and elongation
Suitable for cable armouring and electrical fittings

Packaging & Shipping

Coil form, standard pallet packaging, custom options available.

Use cases

Round-wire armour (SWA) for power, telecom and submarine cables
Steel-tape armour (STA) for multicore, control and instrumentation cables
Coastal, offshore and optical-fibre cable reinforcement and support

Who it is for

Cable manufacturers and distributors specifying galvanized armour wire or strip to ASTM A641, EN 10244-2 or BS EN 10257.

Standards, certificates & inspection

Manufactured and tested to ASTM A641, EN 10244-2, BS EN 10257, JIS G 3547 or AS/NZS 4534. Every batch is produced under an ISO 9001 quality management system and can ship with a mill test certificate covering diameter, tensile strength and zinc-coating weight. Third-party or pre-shipment inspection (SGS, BV or customer-appointed) is available on request.

See test reports & inspection and quality control & testing for the full documentation.

Frequently asked questions

Can I order a custom diameter, coating and tensile grade?

Yes. Zhongbo manufactures to your specification — wire diameter, zinc-coating weight, tensile grade, temper and finish. Send your requirement and we will confirm what we can produce.

Do you provide samples before a bulk order?

Yes. Samples or small initial quantities are available so you can evaluate diameter tolerance, coating, tensile strength and surface quality before placing a larger order.

Which standards do you manufacture to?

ASTM A641, EN 10244-2, BS EN 10257, JIS G 3547, AS/NZS 4534 and GB/T, or your own customer standard and test plan.

What is the minimum order quantity and lead time?

MOQ and lead time depend on the diameter, coating and quantity. Send your enquiry with the destination port and we will confirm both with the quotation.

Do you provide mill test certificates and third-party inspection?

Yes. Each shipment can include a mill test certificate covering diameter, tensile strength and zinc-coating weight, with SGS, BV or customer-appointed inspection on request.

Request a quote

Send your diameter, coating and quantity — we'll reply within one business day.

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Technical documents

Download the product catalogue, or contact us for certificates and test reports.

Product catalogue (PDF)

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Hot-Dip Galvanized Steel Strip for Armouring and Fittings