What are the standard lengths for the ducts?

Standard lengths are 2.2 meters per piece or 5.8 meters per piece.

What standards do the ducts comply with?

Steel ducts comply with JG 225-2007 and plastic ducts comply with JTT 529-2016.

Where are these ducts typically applied?

They are used in bridges, viaducts, water conservancy projects, mines, and high-rise building construction.

Pre-Stressed Galvanized Steel Strip Corrugated Round Duct

Name: Pre-Stressed Galvanized Steel Strip Corrugated Round Duct
Brand: Tianjin Qiangbang Industrial Co., Ltd.
SKU: 2004763582

Tianjin, ChinaTianjin Qiangbang Industrial Co., Ltd.

US$1.00-5.00

20 Meters

Product profile

Customization

Available

Standard

DIN, GB, JIS

Material

Low Carbon Steel

Model NO.

(33-160) x (0.25-0.40) mm

Connection

Female

Surface Treatment

Galvanized Sheet

Head Type

Round

Materials

Galvanized Sheet

Thickness

0.25-0.35mm

Dia.

35mm-130mm;

Length

2.2m/PCS, 5.8m/PCS

Application

Post Tension

Transport Package

Export Packing

Specification

GB, ASTM, JIS

Trademark

DaQiang

Origin

Tianjin, China

Production Capacity

3000 Meter/Meters Per Day

Key features

Diverse Material Options: Available in galvanized steel, black steel, and HDPE plastic.

Multiple Section Shapes: Offered in both round and flat corrugated duct configurations.

Wide Diameter Range: Round ducts available from 33mm to 160mm inner diameter.

Customizable Wall Thickness: Steel duct thickness options from 0.20mm to 0.40mm.

Versatile Strand Compatibility: Supports strands of 12.5mm, 12.7mm, 12.9mm, 15.24mm, and 15.7mm.

Multiple Length Options: Standard lengths include 2.2m and 5.8m per piece.

Broad Application Scope: Ideal for bridges, viaducts, dams, mines, and high-rise buildings.

Compliance with Standards: Meets JG 225-2007 for steel and JTT 529-2016 for plastic ducts.

Company profile

Tianjin Qiangbang Industrial Co., Ltd.

Tianjin, China

Business Type: Manufacturer/FactoryExport Year: 2000-11-28Average Response Time: ≤5.80hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, FCA, EXW

About Our Factory & Business Background

AddressXizhaizhuang Economic Development zone, Jinhai, Tianjin, China

Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: within 15 workdays

Our Production Capability & Technical Expertise

Main ProductsPre-Stressed Steel Strand, Post-Tensioned Steel Cable, Pre-Stressed Steel Wire, PC Steel Wire, Pre-Stressed Anchorage Anchor and Wedge, Post-Tensioning Accessories, Spring Steel Flat Bar, Spring Steel, Flat Steel Bar