GLOBAL CHOICE · ONE-STOP SUPPLIER
steel, machinery,plant construction,digital and integent industrial chain base
Contact us now
seamless pipe
Seamless steel pipe from Junnan Steel
Seamless carbon steel pipe. ASTM A106/A53, API 5L. For pressure, structural, and general use.
Inquire Now
Seamless steel pipe Product Range at a Glance
Browse the full product list below.

Standard Seamless
ASTM A106 Gr.B, API 5L Gr.B. For pressure service.

Structural Seamless
For mechanical and structural applications.
Outer diameter:10.3mm-2032mm
Wall thickness:2.5~90
used in water supply and drainage gas, steam, liquefied petroleum gas.
Products are widely used in water supply and drainage gas, steam, liquefied petroleum gas. bridge, wharf, road

Seamless steel pipe Specifications
QC includes chemical analysis, hydrostatic testing, dimensional checks, and surface inspection.
- Standards: ASTM A106 Gr.B, A53 Gr.B, API 5L Gr.B, GB/T 8163
- OD: 21-610 mm.
- Wall: 2-30 mm.
- Length: 6-12 m or random.
- Ends: Plain, beveled, threaded.
Seamless steel pipe Applications
Our seamless steel pipe serves industries worldwide.

Pressure Piping
Steam, water, gas pipelines for industrial plants.

Oil & Gas
Line pipe for oil and gas transmission.

Structural
Piling, caissons, scaffolding.
Why Junnan Steel
10+ Years Export
Founded 2015, exported to 118+ countries.
Factory-Direct
Mill pricing, no middlemen.
Third-Party Inspection
SGS, BV, CIQ accepted.
Flexible Shipping
15-25 days. FOB, CIF, CFR.
Global Support
Multi-language. 24h response.
FAQ
Pressure Piping?
Yes, steam, water, gas pipelines for industrial plants.
Oil & Gas?
Yes, line pipe for oil and gas transmission.
Structural?
Yes, piling, caissons, scaffolding.

We will get you a fast free quote and schedule your job on the day and time that works best for you.







