Seamless Steel Pipe

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.

Product Features:

Out diameter: 1/8 – 30 inch
Wall thickness: 0.049– 25 inch
Length: Random length, fixed length, SRL, DRL
Material: ASTM A106 Grade B, A53 Gr.B/API 5L Gr.B.

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INFORMATION

What is seamless steel pipe?

Seamless steel pipe is a type of pipe that is made from a single, round bar of steel.
The bar is heated, and a probe is used to create a hole through the cylinder. The cylinder is then rolled to the desired diameter and wall thickness.
Seamless steel pipe has no seams, joints, or welds on its exterior.

SMLS steel pipe stands for Seamless Steel Pipe. It’s a type of steel pipe that is manufactured without any welds or seams, created by piercing a solid steel billet. This manufacturing process provides the pipe with enhanced strength and ability to withstand higher pressures compared to welded pipes.

Seamless steel pipes have the following specifications:

Diameter: 114-914 mm
Thickness: 4-60 mm
Length: According to your requirements
OD: 6-710 mm
WT: 0.6-48 mm
Length: 5.8/6/11.8/12m

Key characteristics and applications of SMLS steel pipes:

No Welds:
SMLS steel pipes are formed by piercing a solid billet and then shaping it, resulting in a pipe without any welded seams.
High Pressure Resistance:
The lack of seams makes SMLS pipes exceptionally strong and capable of handling high pressures, making them suitable for demanding applications.
Versatile Applications:
SMLS steel pipes are used in a wide range of industries and applications, including oil and gas pipelines, construction, mechanical engineering, and more.
Material Variety:
SMLS steel pipes can be made from various steel grades, including carbon steel, alloy steel, and stainless steel, depending on the specific application requirements.
Manufacturing Processes:
SMLS steel pipes are typically produced using hot rolling, cold rolling, or cold drawing techniques, with hot rolling being the most common method.
Common Standards:
SMLS steel pipes often adhere to standards like ASTM A106 for high-temperature service, ASTM A53 for general-purpose piping, and API 5L for oil and gas pipelines.

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

Seamless steel pipes are also known as mild steel pipes and tubes. They are low-cost and easy to form and shape.

Seamless steel pipe is more resistant to corrosion and can withstand higher pressures than welded pipe. However, welded pipe is generally less expensive because it is a simpler process. When buying pipes, you can consider factors such as:
Quality of materials
Corrosion resistance
Tensile strength
Ease of use

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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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

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