Seamless Steel Pipe

OD: 6-710 mm or customized
Wall Thickness (WT): SCH 10, SCH 40, SCH 80, SCH 160, SCH XXS (Up to 60mm)
Length: According to your requirements
End Finish: Beveled Ends (for welding), Plain Ends, or Threaded & Coupled.
Surface Treatment: Black Painting, Anti-rust Oil, Hot-dip Galvanized, 3PE Coating, or FBE Coating.
Service: Matching Fittings & Flanges Available

Seamless Steel Pipe (SMLS) – High-Performance Carbon & Alloy Solutions

JS FITTINGS is a premier manufacturer and global supplier of high-grade Seamless Steel Pipes (SMLS). Engineered to withstand high pressure, extreme temperatures, and mechanical stress, our pipes are the preferred choice for oil and gas, petrochemical, power generation, and structural engineering projects.
For stockists and distributors, we offer a stable supply chain, mill-direct pricing, and comprehensive inventory management to ensure your projects never face delays.

Technical Standards & Material Grades

We strictly adhere to international quality protocols. Our pipes are manufactured to meet and exceed the following global standards:

Standard	Description	Common Grades
ASTM A106	Standard for high-temperature service	Grade B, Grade C
ASTM A53	General usage for steam, water, gas, and air lines	Grade B
API 5L	Line pipe for the petroleum and natural gas industries	Grade B, X42, X52, X60, X65, X70 (PSL1 & PSL2)
ASTM A333	Low-temperature service piping	Grade 1, Grade 6
DIN/EN	European standards for pressure and structural use	S235JR, S355JR, P235GH, P265GH

The most common specification for seamless carbon steel pipe is A106B.
The most common specification for seamless stainless steel pipe is A312.
Stainless steel pipes can withstand high temperatures and corrosive environments.

Comprehensive Size Range & Specifications

Our production facility is equipped to handle both standard and custom requirements:

Outer Diameter (OD): 6-710 mm or customized
Wall Thickness (WT): SCH 10, SCH 40, SCH 80, SCH 160, SCH XXS (Up to 60mm)
Length: According to your requirements
End Finish: Beveled Ends (for welding), Plain Ends, or Threaded & Coupled.
Surface Treatment: Black Painting, Anti-rust Oil, Hot-dip Galvanized, 3PE Coating, or FBE Coating.

Seamless Steel Pipe Manufacturer Stock

Applications & Industries

Energy Sector: Pipeline transportation of crude oil and natural gas.
Refining & Petrochemical: Heat exchangers, boilers, and high-pressure fluid transport.
Construction: Structural columns and high-rise foundation piling.
Mechanical: Hydraulic cylinders and precision automotive components.

Standard
GB standard	Seamless steel pipe for structural purposes	GB/T8162-2008
	Seamless steel pipe for liquid service	GB/TB8163-2008
	Seamless steel tubes for low and medium-pressure boilers	GB/3087-1999
	Seamless steel tubes for high-pressure boilers	GB/5310-1995
	Seamless carbon steel marine tubes	GB/T5312-1999
	High-pressure seamless steel tubes for chemical fertilizer equipment	GB/6479-2000
ASTM standard	Black and hot-dipped zinc-coated steel pipes are welded and seamless	ASTM A53
	Seamless carbon steel for high-temperature service	ASTM A106
	Seamless cold-drawn low-carbon steel heat exchanger and condenser tubes	ASTM A179
	Seamless carbon steel boiler tubes for high pressure	ASTM A192
	Seamless Medium-carbon boiler and superheater tubes	ASTM A210
	Seamless carbon for mechanical tubing	ASTM A519
API standard	Seamless steel pipe for casing	API Spec 5CT
API standard	Seamless steel pipe for line pipe	API Spec 5L
DIN standard	Seamless steel tube for elevated temperature	DIN 17175
	Cold-drawn seamless precision pipe	DN2391
	Seamless circular unalloyed steel tubes subject to special requirements	DIN 1629

Why Partner with JS FITTINGS?

As a professional B2B partner, we understand that reliability is more than just product quality. It’s about the details that protect your reputation:

100% Traceability: Every single pipe is marked with heat numbers, standards, and sizes. We provide full Mill Test Certificates (MTC) according to EN 10204 3.1 with every shipment.
Zero-Defect Quality Control: Our QC team performs Hydrostatic Testing, Ultrasonic Testing (UT), Eddy Current Testing, and X-ray inspection to ensure no hidden cracks or wall thinning.
Project-Ready Packaging: We use heavy-duty steel strapping for bundles, plastic end caps to protect bevels, and seaworthy wooden crates for thin-walled pipes to prevent transit damage.
Inventory Support: We maintain a revolving stock of standard ASTM A106 and API 5L pipes to support urgent “just-in-time” requirements for our global distributors.

Our Strength

1. 30,000-ton production capacity guarantee | Stable supply of large-scale project needs
2. Dual-standard certified steel pipes | API 5L + EN 10219 dual Compliance assurance
3. Precision Cutting Services | Ready-to-use pipe end treatments
4. Oil and Gas Project Logistics System | Exclusive Shipping Solutions Covering Central Asia/Middle East

seamless steel pipe supplier

The main difference between seamless and ERW pipe is that a seamless steel pipe is produced without the help of welds or seams; however, ERW steel pipes are manufactured by welding pieces of steel longitudinally.
If you want to get the best deal on these industrial steel pipes, we are a one-stop destination for all your requirements. If you have any queries or want to know more about our SMLS steel pipe or ERW pipe, or our other products, contact us or visit our factory.

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