Industrial Tube & Pipe Solutions — ASTM/ASME Certified, 30% Faster Installation

Steel Tube & Pipe
Steel tubes and pipes—including seamless and welded carbon steel pipes, rectangular/square hollow sections (RHS/SHS), round mechanical tubing, and precision cold-drawn tubes—are critical elements in fluid conveyance, structural frameworks, automotive systems, and industrial machinery. Produced from high-quality carbon and low-alloy steels (e.g., Q235B, Q355B, 20#, 45#, ASTM A53, A106, A500, EN 10210, EN 10219), these products deliver reliable pressure resistance, dimensional accuracy, and consistent weldability.
Request a Quote

Size Range & Specifications

Product Parameters
Seamless Steel Tube Ø10 – Ø610 × Wall: 2.5 – 50
Welded Steel Pipe Ø15 – Ø1220 × Wall: 2.0 – 20
Galvanized Round Tube Ø15 – Ø300 × Wall: 1.8 – 8.0
Galvanized Square/Rectangular Tube Square: 20×20×2 – 200×200×8
Rectangular: 30×20×2 – 300×150×8
Black Round Tube Ø10 – Ø350 × Wall: 2.0 – 12
Black Square/Rectangular Tube Square: 20×20×2 – 200×200×10
Rectangular: 40×20×2 – 300×200×10
Coated (Plastic-Lined) Steel Pipe Ø20 – Ø600 × Wall: 3.0 – 15 (epoxy or PE lining)
Electrical Conduit (EMT) Ø16 – Ø100 (standard trade sizes)

Product Overview

Available in hot-rolled, cold-formed, or cold-drawn conditions, our tubes and pipes are supplied in standard black (mill finish), pickled, or pre-galvanized surface options. Widely used in construction scaffolding, building columns, hydraulic cylinders, heat exchangers, oil & gas pipelines, agricultural equipment, and furniture manufacturing, they meet stringent international standards including GB, ASTM, EN, and JIS. Custom cutting, threading, beveling, bundling, and non-destructive testing (NDT) services are offered to support seamless integration into your production workflow.

Big Image Big Image1 Big Image2
standard_bg_pic
standard_pic

Material Grades & Standards

All tube and pipe products are manufactured from certified steel grades and comply with global specifications.

service_bg_pic

Processing & Value-Added Services

Unlike conventional traders, Deqing Steel Market provides on-site, integrated processing services, allowing buyers to receive ready-to-use materials:
service_pic1
01
Flame & Plasma
Cutting
→
service_pic2
02
CNC Drilling &
Machining
→
service_pic3
03
Bending & Welding
→
service_pic4
04
Surface
Treatment
→
service_pic5
05
Pre-assembly
→
All processing is completed within the industrial park, ensuring quality control 
and reduced lead times.

Application Areas

Structural Steel Buildings
Structural Steel Buildings
Bridges & Infrastructure
Bridges & Infrastructure
Industrial Plants & Warehouses
Industrial Plants & Warehouses
Machinery & Equipment Manufacturing
Machinery & Equipment Manufacturing
Shipbuilding & Offshore Structures
Shipbuilding & Offshore Structures
Power & Engergy Facilities
Power & Engergy Facilities

Get a Free Quote

Our representative will contact you soon.
Email
Name
Company Name
Message
0/1000

Zhejiang Deqing Steel Market Co.,Ltd

浙江德清国际钢材城

No. 98 Linhang Avenue, Leidian Town, Deqing,Zhejiang, China

Deqing International Steel Market is China's leading B2B steel marketplace, connecting global buyers with 300+ verified merchants for reliable, one-stop steel sourcing solutions.