China Seamless Steel Pipe Factory: Top Suppliers for Precision Manufacturing and Reliable Performance
Product Introduction
Workshop & Technical Parameters
Common Materials
20# and Q345
Production Range
OD1/4” to OD32”, thickness SCH30, SCH40, SCH80, SCH160, etc.
- API 5L B, ASTM A106 Gr.B, ASTM A53 Gr.B
- High-pressure boiler pipe (GB5310-1995)
- Special pipe for fertilizer making (GB6479-2000)
- Pipe for petroleum cracking (GB9948-2000)
- Low- and medium-pressure boiler pipe (GB3087-1999)
- Fluid pipe (GB/T8163-1999) & Structural pipe (GB/T8162-1999)
- Hydraulic support pipe (GB/T17396-1998)
Frequently Asked Questions (FAQ)
What standards do your seamless steel pipes comply with?
Our seamless steel pipes are produced according to major international standards including API 5L B, ASTM A106 Gr.B, ASTM A53 Gr.B, DIN, JIS, and Chinese GB standards (such as GB5310, GB6479, GB9948, GB3087, GB/T8163, GB/T8162, and GB/T17396).
What sizes of seamless steel pipes can you produce?
We can manufacture seamless steel pipes from Outer Diameter (OD) 1/4” up to OD 32”, with wall thickness classes including SCH30, SCH40, SCH80, SCH160, and others as required.
What are the common materials used in your production?
Our commonly used raw materials for high-quality seamless steel pipe production are 20# steel and Q345 alloy steel.
Which industries are your seamless steel pipes used in?
Our seamless steel pipes are widely used in electric power, chemical, petrochemical, pharmaceutical, boiler, heating, shipbuilding, petroleum cracking, chemical fertilizer equipment, structures, and hollow pumping rod applications.
What quality certifications does your company hold?
We passed the ISO9001:2000 international quality system certification in 2004 and obtained the API certification of the USA in 2008. We consistently seek to maintain high-performance management and superior quality.


