Seamless Steel Pipe

Seamless Steel Pipe

Outer diameter:

Φ10.3mm – Φ610mm or larger

Thickness:

2.41mm – 50mm (depending on diameter and application)

Length

6000mm – 12000mm

Grades:

A106 Gr. A/B/C, A53 Gr. B, API 5L

Mill

Tianjin, Baosteel, Hengyang, TPCO, JFE, Nippon Steel, SeAH Steel, HYSCO

Standards:

ASTM, API, JIS, GB

Key advantages:

Superior strength and durability
Better corrosion resistance
Precise dimensions and tolerances
Excellent performance in high-pressure conditions
Wide range of applications

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High production output

Large manufacturing capacity to efficiently fulfill bulk orders and key projects.

Competitive pricing

Offering budget-friendly yet competitive prices while maintaining product quality.

Trusted by clients

Chosen by hundreds of domestic and international clients for consistent quality and professional service.

Describe Product

Mục lục

Seamless steel pipe is a type of steel pipe without welds, produced by drawing or extruding a solid steel billet through a mold. Thanks to this special manufacturing process, seamless pipe offers higher strength and better resistance to pressure and temperature compared to welded steel pipe.

I. FEATURES

Superior strength and durability: Seamless steel pipes are produced without welds, making them stronger and capable of withstanding high pressure, temperature, and mechanical stress. They are suitable for high-performance applications such as oil & gas, power plants, and chemical industries.
Uniform shape and structure: Seamless pipes have a consistent round cross-section. With no weak points or weld seams, the risk of failure under heavy loads is significantly reduced.
Better corrosion resistance: A smooth surface and fewer imperfections help prevent the onset of corrosion. They are often preferred in harsh environments where long service life is essential.
Precise dimensions and tolerances: The seamless manufacturing process ensures high dimensional accuracy,
making installation and connections easier and more efficient.
Excellent performance in high-pressure conditions: Commonly used in hydraulic systems, boilers, and other high-pressure applications. They are less likely to crack or fail under extreme conditions.
Wide range of applications: Widely used in industries such as oil & gas, petrochemicals, automotive, aerospace, and construction.

	Tính chất vật lý(Mechanical Properties)			Tính chất hoá học(Chemical Composition)
Mác thép(Grade)	Độ bền chảy(Yeild Strength) (Mpa ~ N/mm2) Min	Độ bền kéo(Tensile Strength) (Mpa ~ N/mm2) Min	Độ giãn dài(Elongation) %	C%	Si%	Mn%	P%	S%
SS400	≥ 245*	400 – 510	≥ 21	≤ 0.29	≤ 0.40	≤ 1.6	≤ 0.050	≤ 0.050
A36	≥ 250	400 – 550	≥ 20	≤ 0.26	≤ 0.40		≤ 0.040	≤ 0.050
Q235B	≥ 235*	375 – 500	≥ 26*	≤ 0.20	≤ 0.30	0.30 – 0.70	≤ 0.045	≤ 0.045
A572 Gr50	≥ 345*	450 – 620	≥ 18	≤ 0.23	0.15 – 0.40	1.35 – 1.65	≤ 0.040	≤ 0.050
Q355B	≥ 355*	470 – 630	≥ 22	≤ 0.24	≤ 0.55	≤ 1.6	≤ 0.035	≤ 0.035

II. TOLERANCE

Diameter tolerance: ±0.5 – ±1.0%

Weight tolerance: ± 12.5%

Length tolerance: ± 50mm

III. PACKAGING

Bundle weight: 1.5 – 3 metric tons per bundle

IV. PRACTICAL APPLICATIONS

Oil & gas industry: oil and gas pipelines, drilling pipes
Thermal power – boilers: heat-resistant pipes, high-pressure pipes
Chemical industry: chemical transport, acid-resistant, corrosion-resistant applications
Machinery manufacturing: shaft tubes, bushings, hydraulic pipes
Construction: pipe piles, industrial structures, wind power plant structures

In there:

OD: outer diameter (mm)
T: thickness (mm)
L: length (m)

Formula for calculating steel pipe scale

Enter your values in the boxes below

Outer diameter, OD (mm)

Wall thickness, T (mm)

Length, L (mm)

Steel Type

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