What are the standard lengths for the ducts?

Standard lengths are 2.2 meters and 5.8 meters per piece.

What are the dimensions for flat ducts?

Flat ducts range from 50x22mm to 90x22mm in inner size.

What standards do the products comply with?

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

Pre-Stressed Galvanised Steel Strip Corrugated Round Tube

Name: Pre-Stressed Galvanised Steel Strip Corrugated Round Tube
Brand: Tianjin Qiangbang Industrial Co., Ltd.
SKU: 2008389532

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

Comprehensive Material Options: Available in galvanized steel, black steel, and HDPE plastic to suit various project needs.

Wide Dimension Range: Round ducts from 33mm to 160mm diameter; flat ducts from 50x22mm to 90x22mm.

Versatile Strand Compatibility: Supports strand sizes 12.5mm to 15.7mm with capacities up to 55 strands for round ducts.

Multiple Wall Thicknesses: Steel ducts offer thickness options from 0.20mm to 0.40mm for different load requirements.

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

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

Flexible Length Options: Standard lengths include 2.2m and 5.8m per piece for easy handling and installation.

Dual Shape Configuration: Product line includes both round and flat corrugated ducts for diverse structural designs.

Company profile

Tianjin Qiangbang Industrial Co., Ltd.

Tianjin, China

Business Type: Manufacturer/FactoryExport Year: 2000-11-28Average Response Time: ≤4.97hTerms 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