High Quality Carbon Steel Round Pipe Welded Cold Rolled Seamless Steel Pipe Round Tubes Steel Pipe

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Product Description

Basic Information
Model NO.SMLS PIPEMaterialCarbon Steel
Surface TreatmentBlack, Paint, GalvanizedUsageConstruction & Decoration
Section ShapeRoundStandardBS, GB, DIN, JIS, En, etc
GradeQ235 Q345 St37 St52 St37-2 10# 20# 16mnOuter Diameter10-710mm
Thickness2-65mmApplicationStructure Pipe, etc
Delivery TimeWithin 15-20 DaysMOQ25 Tons
Production Capacity5000 Tons Per MonthOriginShandong Province, China
Product Description
Shape Round Pipe Square Pipe Rectangular Pipe
Outer Diameter17-1820mm10*10-1000*1000mm5*10-600*800mm
Wall Thickness0.5-50mm0.5-50mm0.5-50mm
MaterialQ195 Q215 Q235 Q345 St37 St52 St37-2 10# 20# 16Mn
Length4m-14m or as requirements
Zinc CoatingPre galvanized: 60-150g/m2; Hot dipped: 200-400g/m2
Carbon Steel Seamless Pipe

Seamless Steel Pipe Overview:

  • Long steel bar with a hollow section and no joints.
  • Economical for thicker wall applications.
  • Superior performance in high pressure and high strength environments.
  • Suitable for mechanical structures and fluid transportation.
Steel Pipe Quality Control
Production Process

Process Flow: Tube billet heating → Inspection → Perforation → Pickling → Grinding → Dry lubrication → Cold drawing → Solid solution treatment → Cold rolled → Polishing → Testing → Packaging.

Chemical & Mechanical Properties
Grade C (%) Mn (%) Si (%) Yield Strength (Mpa) Tensile Strength (Mpa)
Q1950.06-0.120.25-0.50≤0.30≥195315-430
Q2150.09-0.150.25-0.55≤0.30≥217335-450
Q2350.12-0.200.30-0.67≤0.30≥235375-500
Q345≤0.201.00-1.60≤0.55≥345470-630
Detailed Product Photos
Steel Pipe Detail 1
Steel Pipe Detail 2
Steel Pipe Stock 1
Steel Pipe Stock 2
Steel Pipe Stock 3
Packaging Detail 1
Packaging Detail 2
Packing & Shipment
Global Logistics

Our products are packed in sea-worthy bundles, wrapped in woven bags, or supplied in loose form as per customer requirements. All processes strictly follow ISO9001:2000 standards.

Frequently Asked Questions
Why choose our steel products?
We maintain large stocks and have long-term partnerships with leading factories. This allows us to provide the lowest ex-factory prices and guaranteed product quality.
What is your Minimum Order Quantity (MOQ)?
Our standard minimum order quantity is 25 Metric Tons.
What is the expected delivery time?
For customized production, it takes 25-30 days after deposit. For normal sizes currently in stock, we can ship within 7-10 days.
What payment methods do you support?
We support T/T, L/C at sight, and D/P payment terms under FOB, CFR, or CIF trade terms.
Do you provide samples?
Yes, we provide samples free of charge. The customer is only responsible for the freight charges.
Which regions are your main markets?
Our main markets include the Mid East, South America, South Asia, Africa, Southeast Asia, and parts of Europe.

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