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A53 Seamless & Welded Carbon Steel Pipe
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A53 American standard seamless steel pipe is made of high-quality steel billets through hot rolling, cold drawing and other processes. The chemical composition and mechanical properties of this steel pipe comply with the requirements of American standard ASTM A53/A53M.
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PRODUCT PARAMETERS

Carbon Steel: Properties, Production, Examples and Applications


Carbon steel is an iron-carbon alloy, which contains up to 2.1 wt.% carbon. For carbon steels, there is no minimum specified content of other alloying elements, however, they often contain manganese. The maximum manganese, silicon and copper content should be less than 1.65 wt.%, 0.6 wt.% and 0.6 wt.%, respectively.


Types of carbon steel and their properties


Carbon steel can be classified into three categories according to its carbon content: low-carbon steel (or mild-carbon steel), medium-carbon steel and high-carbon steel . Their carbon content, microstructure and properties compare as follows:


Carbon content (wt.%)MicrostructurePropertiesExamples
Low-carbon steel< 0.25Ferrite, pearliteLow hardness and cost. High ductility, toughness, machinability and weldability
Medium-carbon steel0.25 – 0.60MartensiteLow hardenability, medium strength, ductility and toughness
High-carbon steel0.60 – 1.25PearliteHigh hardness, strength, low ductility


Carbon Steel Description


Grade:


1)GB: Q195, Q215, Q235A, Q235B, Q235C, Q235D, Q255A, 255B, Q275, Q295A, Q295B, Q345B, Q345C, Q345D, Q345E, Q390A, Q390B, Q390C,Q390D, Q390E, Q420, Q420B, Q420C, Q420D, Q420E, Q460D, Q460E, Q500D, Q500E, Q550D, Q550E, Q620D, Q620E, Q690D, Q690E


2)EN: S185,S235JR, S275JR, S355JR, S420NL, S460NL S500Q, S550Q, S620Q, S690Q 


3)ASTM: Grade B, Grade C, Grade D, A36, Grade 36, Grade 40, Grade42, Grade 50, Grade 55, Grade 60, Grade 65, Grade 80 


4)JIS: SS330, SPHC, SS400, SPFC, SPHD, SPHE



PRODUCT DETAILS


A53  Seamless & Welded Carbon Steel Pipe Description
ASTM A53 seamless steel pipe has high strength, good toughness, good  processing performance and welding performance. A53 American standard seamless steel pipes are available in a  wide range of specifications, with a wide range of outer diameters and wall  thicknesses. Because ASTM A53 seamless carbon steel pipe has excellent  material properties and good processing performance, it is widely used in  petroleum, chemical industry, electric power, machinery manufacturing and  other fields. For example, in the petrochemical industry, ASTM A53 steel  pipes can be used to transport high-temperature and high-pressure oil, natural  gas and other media.
A53 Seamless & Welded Carbon Steel Pipe Description
Product   NameA53 Seamless & Welded Carbon Steel Pipe
StandardEN/DIN/JIS/ASTM/BS/ASME/AISI etc.
Outer DiameterSeamless: 1/4"-36"Welding: 21.3mm-3620mm
Round Tube: 1/2"-10"Square   Tube/Rectangular Tube: 15x15mm-400x600mm
Wall   ThicknessSeamless: 1.25mm-50mmWelding: 1.65mm-65mm
Length3-12 meters, Support customization
Surface ProcessBright, Polished, Black
Other   ServicesMachining(cnc), Centerless Grinding(cg), Heat   Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting,   Bending, Small Machining, etc.
Chemical Composition
A53GradeCMnPSCuNiCrMoV
TypeS(Seamless)A0.250.950.050.050.40.40.40.150.08
B0.31.20.050.050.40.40.40.150.08
TypeE(Resistance Welding)A0.250.950.050.050.40.40.40.150.08
B0.31.20.050.050.40.40.40.150.08
TypeF(Furnace Welding)A0.31.20.050.050.40.40.40.150.08
Mechanical  Properties
A53GradeAGradeB
Tensile  Strength Min.psi(MPa)48,000(330)60,000(415)
Yield  Strength Min.psi(MPa)30,000(205)35,000(240)
Physical  Performance
Density 20°CModulus of Elasticity Kn/² mmCoefficient  of Thermal Conductivity 20°CHeat  Capacity 20°CResistivity 20°C
Kg/dm³20C°300C°400C°450C°W/m KJ/kg KΩmm²/m
7.85210192184179514610.2
Scope of  Application
Construction:  underground pipeline, underground water, hot water transmission, mechanical  processing, bearing sleeve, processing machinery parts, etc.
Electrical:  natural gas transmission, hydroelectric fluid pipelines, anti-static pipes  for wind farms, etc.


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PRODUCT DISPLAY

We adopt high standard production processes, select high-quality steel raw materials, and provide diverse product specifications and models. All steel products have passed strict quality testing, with smooth and even surfaces, precise dimensions, excellent compressive strength, corrosion resistance, and processability. Support customized thickness, length, and special process requirements to meet different usage standards in different scenarios. Clear display of high-definition detailed images and technical parameter tables of the physical object, ensuring transparent and visible quality.

PRODUCT APPLICATION

This product is widely used in the fields of building structures, mechanical manufacturing, automotive parts, energy equipment, and home hardware, and is suitable for scenarios such as load-bearing frames, precision parts, and industrial pipelines. With excellent physical performance and stability, it can easily meet the demands of high strength, high wear resistance, and extreme environments. Support collaboration with engineering teams to provide material selection suggestions and assist clients in efficiently implementing their projects.

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PRODUCT PACKAGING

Adopting a professional industrial packaging solution that is moisture-proof and scratch resistant, each batch of steel is tied and fixed with customized wooden frames/steel strips, combined with anti rust coatings and cushioning pads to ensure zero damage during transportation. Clear product model, batch number, and storage identification on the outer packaging, supporting customized enterprise logos and information labels. Environmentally friendly and recyclable packaging materials practice green concepts, reducing transportation and disassembly costs.

FACTORY DISPLAY

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FAQ

Q1: Do you pack the products?

A: Yes, in general, we will strictly pack the fragile products, such as stainless steel, aluminum, etc. to prevent the products from being scratched. We can also pack the goods according to the customer's requirements.

Q2: Can you provide samples?

A: Yes, we can provide free samples, but customers need to bear the transportation costs.

Q3: How do you guarantee the quality of your products?

A: Our factories are professionally certified, and each product is inspected piece by piece according to domestic and international QA/QC standards. We can also show the product quality certificate to customers.

Q4: Do you make customized products?

A: Yes, we have many years of experience in product customization and can tailor products for you according to your specific requirements.

Q5: Do you accept third-party inspection?

A: We accept third-party inspection: SGS, V-trust, TUV, DNV and other third-party inspections.

Q6: What are your payment terms?

A: We accept 30% T/T advance payment and 70% balance before delivery. We will show you the photos of the products and packages before you pay the balance.

Q7: What are your delivery methods?

A: EXW, FOB, CIF, CFR, DDU, etc.

Q8: What is your delivery time?

A: For stock products, we can deliver the goods to the loading port within 3-7 days after receiving your advance payment. For production cycle, it usually takes about 15 to 30 days after receiving the deposit.

Q9: Do you have discounts for large orders?

A: Our company has the ability to supply large projects and also has very good preferential policies for large orders.

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