Description

As a professional steel pipe manufacturer and supplier, Business Steel provides seamless and welded pipes manufactured in accordance with ASTM, API, EN, and JIS standards. Throughout production, we strictly control material properties, dimensional accuracy, and weld integrity. Each batch undergoes mechanical property verification and pressure testing in compliance with applicable standards. Full traceability is maintained across the entire production process.
Our steel pipes are widely used in oil and gas transmission, structural construction, water supply systems, and mechanical manufacturing, ensuring reliable performance under demanding operating conditions.
With stable production capacity, sufficient inventory, and rigorous quality control, we are able to support both urgent orders and long-term project contracts. Backed by 20 years of export experience and secure packaging solutions, our pipes arrive on site ready for installation.

Specification

Name: Steel Pipe & Steel Tube
Brand: Business steel（Qingdao）Co., Ltd.
Availability: InStock
Rating: 5 (1 reviews)

Product Name	Steel Pipe / Steel Tube
Standard & Grade	ASTM A53 (Gr.A / Gr.B), ASTM A106 (Gr.B / Gr.C), API 5L (X42–X70), EN 10219 (S235JR / S355JR), JIS G3454 / G3456
Type	Seamless / ERW / LSAW / SSAW
Outer Diameter (OD)	21.3mm – 1220mm
Wall Thickness	1.5mm – 50mm (customizable)
Length	5.8m / 6m / 12m or custom fixed length
End Type	Plain End / Beveled End / Threaded & Coupled
Surface Treatment	Black / Varnished / Galvanized / 3LPE / FBE Coating
Tolerance	As per applicable ASTM / EN / API standard
Application	Oil & Gas Pipeline, Structural Construction, Water Transmission, Mechanical Fabrication
Inspection & Test	Hydrostatic Test, NDT (UT / RT), PMI, Third-Party Inspection Available
Test Certificate	EN 10204 3.1 / 3.2 available
MOQ	1 ton
Delivery Time	3–45 days depending on stock & production schedule
Production Capacity	100,000 tons / year
Loading Port	Qingdao / Shanghai / Tianjin / Ningbo / Shenzhen
Packaging	Bundled with steel straps, plastic caps on pipe ends, seaworthy export packing

Pressure Performance

Steel pipes used in structural or pressure systems must operate safely over time. Material stability, strength consistency, and heat treatment control all influence long-term performanace.
We manufacture strictly in accordance with the ASTM, API, or EN standards specified for your project. Mechanical properties are verified for each heat, and hydrostatic testing is carried out as required. Full traceability is maintained from billet to finished pipe.

Weld Quality Control

Weld integrity directly affects overall pipe reliability. During production, weld seam stability is monitored continuously. Ultrasonic or radiographic testing is conducted in accordance with applicable standards or project specifications.
We look beyond surface appearance. Internal weld structure and continuity are carefully controlled to ensure long-term structural performance. Many engineering clients continue working with us after repeated project verification.

Dimensional Accuracy

On site, installation issues are often caused by small dimensional deviations rather than major defects.
Outer diameter, wall thickness, straightness, and length are controlled in line with the relevant standards. Beveling is processed to ensure accurate alignment and field welding.
Consistent dimensional control helps contractors reduce on-site adjustments and maintain construction efficiency.

Stable Factory Supply

With established production capacity and organized scheduling, we support both stock orders and project-based manufacturing. Delivery plans can be arranged in batches according to site progress.
Our objective is to provide steady, predictable supply — especially for long-term projects.

Packaging & Global Delivery

Steel pipes are susceptible to impact and moisture during transportation, particularly in export shipments.
Pipes are securely bundled, fitted with protective end caps when required, and packed for seaworthy transport. Loading methods are arranged according to pipe size and shipment type. We ensure materials arrive on site ready for installation, not requiring additional repair or handling.

FAQ

What is your minimum order quantity?
MOQ starts from 1 ton. We support both small trial orders and full container project shipments. This allows new customers to verify quality before long-term cooperation.

How fast can you deliver?
Stock sizes can usually ship within 3–7 days. Production orders typically require 15–45 days, depending on size and quantity. If your project is urgent, we can prioritize scheduling after confirmation.

Can you provide third-party inspection?
Yes. Third-party inspection such as SGS, BV, or other appointed agencies can be arranged before shipment. Inspection reports are issued prior to loading.

Do you provide Mill Test Certificates?
Yes. EN 10204 3.1 MTC is available with each shipment upon request. All materials are documented and traceable.

Can you customize sizes or fixed lengths?
Yes. Outer diameter, wall thickness, and fixed length can be produced according to project requirements. Custom processing helps reduce on-site cutting and installation time.

Have you exported to overseas projects before?
Yes. With over 20 years of export experience, we serve clients in the Middle East, Southeast Asia, Europe, Africa, and South America. Our team handles export documentation and logistics to ensure smooth delivery.

Steel Pipe & Steel Tube