Q235 Carbon Seamless Steel Pipe

Q235 Carbon Seamless Steel Pipe

Payment Type: T/T,L/C,D/P,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,EXW
Transportation:Ocean,Land,Express
Port: Qingdao,Tianjin,Shanghai
Option:
14*4
21*4
25*3
38*4
219*32
273*18

Product  Description

Out Diameter13.7mm-914mm
Wall Thickness2mm-120mm
Length2m-12m
Producing StandardAmerican ASME B36.10M, ASTM API 5L, API 5CTJapanese JIS, German DIN, Chinese GB, BS standard
Steel Grade

ASTM A53, A106, A210, A252, A178, A333, A335, SAE1018, SAE1020, SAE1045 etc;API 5L 

 PSL1: A, B, x42, x46, x52, x56, x60, x65, x70API 5L PSL2: B, x42, x46, x52, x56, x60, x65, x70,  

x80JIS SS400, STPG42, G3454, G3456 etc;DIN St35, St35.8, St37, St42, St45, St52, DIN1626,  

DIN17175 etc;GB 10#, 20#, 45#, Q235, Q345, Q195, 16Mn, 27SiMn, 20Cr, 40Cr, 12CrMo, 15CrMo, 30CrMo, 35CrMo, 42CrMo etc;

Special specificationsAvailable according to customer's requirements and quantity.
End ShapeBeveled end, plain end, varnished, or adding plastic caps to protect the two ends as per customer's requirements
Surface treatmentPainted, Oiled, galvanized, phosphate etc
Usage

Widely used in the mechanical treatment field, petrochemical industry, transport and construction  field2.Ordinary structural purposes and mechanic structural purposes, for example in construction field, fulcrum bearing etc;3.The transportation of fluids in the projects 

and big equipments, for example transport of water, oil, gas etc4.Can be used in low and 

medium pressure boiler for the transportation of fluids, for example steam tube, big smoke tube, small smoke tube, generating tube etc

Third party inspectionWelcome you to send a third party inspecting company (BV, SGS etc) to check the quality of our final products.


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Full-Link Trust Service System

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—— Guarantee services

Pre-sales Trust Services (Reducing Decision-Making Risks)

Free Samples: We provide free samples accompanied by material certificates, allowing customers to inspect the products before placing orders.

Virtual Factory Tour + Live Factory Inspection: We offer appointment-based virtual factory tours (covering production lines, laboratories and warehouses).

Customized Solutions: Based on customers' application scenarios, applicable standards, budgets and delivery schedules, we provide multiple sets of steel selection and cost comparison solutions, with clear marking of quality risk points and corresponding control measures.

—— Guarantee services

Pre-sales Trust Services (Reducing Decision-Making Risks)

Free Samples: We provide free samples accompanied by material certificates, allowing customers to inspect the products before placing orders.

Virtual Factory Tour + Live Factory Inspection: We offer appointment-based virtual factory tours (covering production lines, laboratories and warehouses).

Customized Solutions: Based on customers' application scenarios, applicable standards, budgets and delivery schedules, we provide multiple sets of steel selection and cost comparison solutions, with clear marking of quality risk points and corresponding control measures.

—— Guarantee services

In-sales Transparent Management (Full Process Traceability)

Production Live Streaming: For orders from large customers, we provide real-time live streaming and short videos of the production process, enabling customers to witness the quality control work on site.

Loading Supervision Service: We support loading supervision by customers themselves or third-party institutions, with photo and video records provided as evidence.

Logistics Visualization: We provide bills of lading, real-time logistics tracking information and estimated port arrival time, enabling customers to inquire about the logistics status at any time.

—— Guarantee services

In-sales Transparent Management (Full Process Traceability)

Production Live Streaming: For orders from large customers, we provide real-time live streaming and short videos of the production process, enabling customers to witness the quality control work on site.

Loading Supervision Service: We support loading supervision by customers themselves or third-party institutions, with photo and video records provided as evidence.

Logistics Visualization: We provide bills of lading, real-time logistics tracking information and estimated port arrival time, enabling customers to inquire about the logistics status at any time.

—— Guarantee services

After-sales Support Services (Building Long-Term Trust)

Technical Support: We offer professional guidance on steel application, recommendations for welding processes, diagnosis of quality problems, and provide free technical training (both online and offline).

Customer Profile Management: We establish exclusive service profiles for each customer, recording order details, quality inspection results, delivery information and after-sales records. We conduct regular follow-up visits and proactively remind customers of inventory status and new product launches.

—— Guarantee services

After-sales Support Services (Building Long-Term Trust)

Technical Support: We offer professional guidance on steel application, recommendations for welding processes, diagnosis of quality problems, and provide free technical training (both online and offline).

Customer Profile Management: We establish exclusive service profiles for each customer, recording order details, quality inspection results, delivery information and after-sales records. We conduct regular follow-up visits and proactively remind customers of inventory status and new product launches.

why choose us

Precision Manufacturing

Equipped with advanced production lines and a skilled workforce, we ensure high dimensional accuracy and consistent quality in every batch. Our 19 years of OEM/ODM experience enable us to handle complex custom requirements with precision and efficiency.

Material Science

We specialize in copper and aluminum materials, with in-depth knowledge of their properties and applications. From standard alloys to specialized compositions, we provide material solutions optimized for conductivity, strength, and corrosion resistance.

Quality Controll

Our manufacturing process is backed by rigorous quality inspections at every stage—from raw material selection to final packaging. We adhere to international standards to ensure reliable performance and long-term durability of all products.

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Product Showcase

Whether it's standard industrial profiles or complex irregular structures, we can provide reliable aluminum solutions to global customers with efficient delivery and consistent quality.

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