Cold Rolled Seamless Pipe

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Cold Rolled Seamless Pipe

Cold Rolled Seamless Pipe is a type of steel pipe that is produced using a cold rolling process, which involves rolling the pipe at room temperature to achieve a more precise and smooth surface finish compared to hot rolled pipes. This process also enhances the mechanical properties and dimensional accuracy of the pipe.

Gnee cold rolled seamless pipes offer unmatched precision, superior surface finish, and enhanced mechanical properties, making them an excellent choice for a wide range of demanding applications. Their seamless construction ensures greater structural integrity, while their versatility and high strength-to-weight ratio provide solutions for various industrial needs. By choosing Gnee, you are assured of high-quality, reliable, and environmentally friendly seamless pipes that meet the highest industry standards.

Outer Diameter5mm-220mm
Wall Thickness0.5mm-25mm
  • EN
  • ASTM
  • AISI
  • JIS
  • GB
  • ISO


7 days for stock goods/ within 30-50 days / depending on your order quantity

Clear labels are tagged on the outside of the package for easy identification of the quantity and product I.D.

  • Bundles
  • Wooden Boxes
  • Crates
  • Packaging for P91 pipe as customer’s requirements

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A) Full Service: Pre, In, After
B) 15+ Years Exp.Global Export
C) 365 Days Always Online
D) Large-scale Reserve
E) Diversified Logistics Solution

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What are the shapes of Cold Rolled Seamless Pipe

Various Cold Rolled Seamless Steel Pipe For Sale

More cold rolled seamless tube information

OD21.3 – 508 mm, or as you require.
Thickness0.5 – 3.0 mm, or as you require.
Length2 – 12M, or as you require.
GradeSPCC
ST12, ST13, ST14
DC01
A1008
Q195, Q215, Q235
CR1, CR2, CR3, CR4, CR5
StandardBS1387, ASTM A53, API 5L, JIS G3444, BS EN39, EN10219

Parameters Of cold rolled seamless Steel tube

GradeCSiMnPSCrMo
St 35 (DIN1.0308)0.17 max0.35 max0.40 min0.025 max0.025 max//
St 52 (DIN1.0580)0.22 max0.55 max1.60 max0.025 max0.025 max//
CFS 40.25 max0.35 max1.20 max0.050 max0.050 max//
CFS 50.23 max0.50 max1.50 max0.050 max0.050 max//
CFS 100.26 max0.35 max0.80 max0.050 max0.050 max0.80-1.200.15-0.30
10200.18-0.25/0.30-0.600.040 max0.050 max//
10450.43-0.50/0.60-0.900.040 max0.050 max//
41300.28-0.330.15-0.350.40-0.600.040 max0.040 max0.80-1.100.15-0.25
GradesDelivery ConditionsTensile Strength Rm (Mpa)Yield Strength R2 (Mpa)Elongation in the longitudinal direction Al (%)
St 35+C (BK)480 min/6 min
St 35+LC (BKW)420 min/10 min
St 35+SR (BKS)420 min315 min14 min
St 35+A (GBK)315 min/25 min
St 35+N (NBK)340-470235 min25 min
St 52+C (BK)640 min/4 min
St 52+LC (BKW)580 min/7 min
St 52+SR (BKS)580 min420 min10 min
St 52+A (GBK)490 min/22 min
St 52+N (NBK)490-630355 min22 min
E235+C (BK)390 min/7 min
E235+A (GBK)315 min/25 min
E235+N (NBK)340-480235 min25 min
E355+C (BK)540 min/5 min
E355+A (GBK)450 min/22 min
E355+N (NBK)3490-630355 min22 min
ASTMASTM A519, ASTM A513
JISJIS G3441, JIS G3445, JIS G3466, JIS G3459.
DINDIN1626, DIN1629, DIN2391, DIN2393, DIN2448, DIN2458.
ENEN10305
BSBS6323

Advantages Of Cold Drawn Seamless Steel Tube

Gnee cold rolled seamless steel tubes offer a multitude of advantages, including superior surface finish, enhanced mechanical properties, tight tolerances, and excellent formability. Their versatility and aesthetic appeal make them a preferred choice for a wide range of applications. With a commitment to quality and precision, Gnee ensures that their cold rolled steel pipes meet the highest industry standards, providing reliable and durable solutions for various industrial needs.

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Cold rolled seamless pipe from Gnee boast an excellent surface finish. The cold rolling process ensures a smoother and more refined surface compared to hot rolled steel, making these pipes ideal for applications requiring a clean and polished appearance.

The cold rolling process improves the mechanical properties of the steel, resulting in higher strength and durability. This makes Gnee cold rolled steel pipes suitable for demanding applications where structural integrity is crucial.

Cold rolling allows for precise control over the pipe dimensions, leading to tight tolerances and consistent product quality. This precision is vital for applications where exact measurements are required.

Cold rolled steel pipes have better formability compared to hot rolled steel, allowing them to be easily bent, shaped, and formed into various configurations without compromising their structural integrity.

The cold rolling process ensures greater dimensional accuracy, reducing the need for further machining or adjustments. This can lead to cost savings and increased efficiency in manufacturing processes.

Why Choose Gnee galvanized steel Product?

If you want to find a trustable galvanized steel sheet/coil/tube/pipe/rod/profiles manufacturer, Gnee will be your best choice. 20 years of experience galvanized steel products manufacturer, certified by CE, ISO, SGS and ASTM, EN. We strictly control the quality of our galvanized steel products, using high-quality raw materials and advanced production processes to ensure that our products meet international standards and customers’ requirements.
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In addition, our galvanized steel products have been successfully exported to more than 60 countries such as Singapore, Vietnam, Malaysia, Indonesia, Pakistan, UAE, and South Korea, etc. Many regular customers visit our company and factory and make multiple orders.

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What Services Does Gnee Provide?

Gnee can provide the following measurement services for galvanized steel product:

Coating Thickness: Measurement of the thickness of the zinc coating on the galvanized steel surface. This is crucial for ensuring that the steel has an adequate protective layer.

Dimensions: Checking and documenting the dimensions of the galvanized steel, including length, width, and thickness of the steel itself.

Weight: Determining the weight of the galvanized steel, which may include both the steel and the zinc coating. This is often measured in pounds or kilograms.

Surface Inspection: Examining the surface quality of the galvanized steel for any defects, imperfections, or irregularities.

Adherence to Standards: Verifying whether the galvanized steel meets specific industry or international standards for quality and performance.

Corrosion Resistance Testing: Assessing the corrosion resistance of the galvanized steel, which is a key property of the zinc coating.

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Gnee can customize the size and shape of galvanized steel products for your project according to specific project needs. The custom design of the galvanized steel product is carried out by a professional engineer and design team. Based on the requirements and constraints of the project, they will use calculation and simulation tools, combined with experience and technical knowledge, to optimize the galvanized steel products design to meet the specific needs of your engineering.

● According to the strength requirements of structural design, adjust the thickness, width, and length of galvanized steel product.
● The shape of the galvanized steel product can be designed according to the characteristics of the project.
● If you consider the convenience of installation and maintenance, we can also add openings and passages for easy access and operation in the design for areas that require frequent maintenance.

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Purchasing Gnee galvanized steel products can provide the following deep processing services. We can customize according to the specific needs of customers to meet the requirements.

Precision Cutting Service: Galvanized steel products can be custom cut to obtain the desired shape and size according to the needs of customers. For example, flame cutting, plasma cutting, laser cutting, etc., can cut galvanized steel sheet/coil/tube into required blocks, special-shaped parts.
Bending and forming: Galvanized steel products are bent and formed by stress application and appropriate processes to obtain the desired shape.
Welding service: Welding services for joining multiple pieces of galvanized steel, creating complex structures.
Punching and Perforation: Punching or perforating services for creating holes, slots, or other patterns in the galvanized steel. Meet specific assembly requirements.
Surface treatment: Additional coating or finishing processes to enhance the aesthetics or performance of the galvanized steel.

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Gnee galvanized steel products can provide the following testing services through third-party testing agencies. These third-party testing services can provide independent, objective verification that galvanized steel products comply with relevant standards and regulations.

Coating Thickness Measurement: Verification of the thickness of the zinc coating on the galvanized steel surface.
Material Chemical Composition Analysis: Through chemical composition analysis, determine whether the composition of the galvanized steel products meets the standard requirements.
Mechanical Performance Test: Mechanical performance test includes tensile test, impact test, bending test, etc., which are used to determine whether the mechanical properties such as strength, toughness and ductility of products meet the specified requirements.
Corrosion Performance Test: Through the corrosion performance test, evaluate the corrosion resistance of galvanized steel products, including salt spray corrosion resistance, chemical corrosion resistance, etc.
Hardness Test: Hardness test is used to measure the hardness of galvanized steel products, and its strength and wear resistance can be evaluated according to the hardness value.
Adherence to Standards: Inspection to confirm that the galvanized steel meets specific industry or international standards for quality and performance.
Surface Inspection: Examination of the surface quality to identify any defects, imperfections, or irregularities.
Dimensional Inspection: Verification of dimensions to ensure that the galvanized steel meets the specified size requirements.

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