Why Choose Our Stainless Steel Seamless Pipe?
Our production process for seamless stainless steel pipe complies with industry standards: Raw materials first undergo physical and chemical analysis (incoming inspection), followed by flat-end cutting, lubrication, cold rolling/cold drawing, solution heat treatment, straightening, and acid pickling. Subsequently, eddy current or ultrasonic testing may be performed, depending on customer order requirements. This is followed by final inspection, product marking, and warehousing, after which shipment is arranged.
Our seamless stainless steel pipe can withstand extreme temperatures—whether low or high—and are therefore widely used in industrial applications.
In addition to their excellent performance, our seamless stainless steel pipe can be polished to achieve a smooth finish. This makes them an ideal choice for architectural applications that require both functionality and aesthetic appeal.
Professional Stainless Steel Seamless Pipe Supplier
As a professional supplier of stainless steel pipes, Verixor offers seamless stainless steel pipe suitable for a wide range of industrial and engineering projects. Depending on specific requirements, we can supply grades such as 304, 316, and 316L; the actual scope of supply is subject to order confirmation.
Ss seamless pipe is manufactured using processes such as hot rolling, cold rolling, and cold drawing. With no longitudinal welds, they are suitable for applications requiring corrosion resistance, mechanical strength, and stable performance under specific operating conditions. The outer diameter, wall thickness, length, and surface treatment of the products can all be customized according to project requirements. Depending on order specifications, we can also arrange inspections such as eddy current testing (ECT) and ultrasonic testing (UT).
When purchasing, we recommend confirming the applicable standards, material grades, dimensional tolerances, operating conditions, and inspection requirements in advance to ensure the products meet your specific application needs.
If you have any procurement needs for ss seamless pipe, please feel free to contact us at any time.
Stainless Steel Seamless Pipe Product Categories
The billets are heated to high temperatures and then rolled into shape, making this process suitable for producing large-diameter, thick-walled tubes with relatively large allowances for subsequent machining.
The wall thickness is further reduced through rolling at room temperature, resulting in more precise tube dimensions and a smoother surface.
The pipes are drawn through dies to gradually achieve the target outer diameter and wall thickness, making them suitable for products that require high dimensional accuracy and wall thickness uniformity.
Why You Need Stainless Steel Seamless Pipe?
Select the appropriate grade based on humidity, chemical exposure, and chloride exposure.
When properly sized, seamless structures are suitable for applications with high pressure requirements.
Meet specific high-temperature or low-temperature operating conditions by selecting the appropriate material and specifications.
Determine the wall thickness based on design pressure, mechanical loads, and applicable engineering calculations.
Seamless Construction for More Consistent Corrosion Resistance
Verixor stainless steel seamless tubing is formed from solid steel billets, resulting in a tube body without welded seams. This eliminates potential differences in corrosion resistance between the weld zone and the base material. This uniform structure helps minimize weak points under severe operating conditions. When your project involves corrosive media or long-term operation, the seamless construction helps ensure material consistency and operational reliability.
Robust Construction Meets Stringent Pressure Requirements
Verixor stainless steel seamless tube is manufactured using controlled rolling or drawing processes to form a continuous tube wall without welded joints. When the appropriate material, wall thickness, and dimensions are selected, this construction helps withstand mechanical stresses and internal pressures. For your project, the seamless construction alleviates concerns about weld-induced weak points and helps the tubes maintain more reliable performance under specified operating conditions.
Why Choose Verixor As Your Stainless Steel Seamless Pipes Partner?
Verixor specializes in the production of seamless stainless steel pipe, with over 10 years of industry experience and a production facility spanning more than 10,000 square meters. We utilize processes such as hot rolling, cold rolling, and cold drawing. Our products comply with standards including ASTM A511, ASTM A312, ASTM A213, ASTM A376, EN 10297-2, and EN 10216-5, and can be custom-manufactured to meet your specified international standards. We can also work with you to determine custom dimensions and testing requirements based on your project needs.
Stainless Steel Seamless Pipe for Multiple Applications
Capable of withstanding certain temperatures and pressures, making it suitable for fluid transportation in power systems.
Offers good corrosion resistance, making it suitable for piping systems in contact with chemical media; specific performance depends on the choice of material.
The pipe body is seamless, and the inner wall can be surface-treated as required, facilitating cleaning and meeting sanitary production requirements.
The continuous, seamless structure helps reduce weld-related weak points.
The inner walls of stainless steel seamless tubes can be polished, making them easy to clean and suitable for food and pharmaceutical production.
Stainless steel seamless tubes can be selected in materials appropriate for the water quality, reducing the risk of corrosion in cooling water piping.
Stainless Steel Seamless Pipe Tolerance Table
| Standard | OD Range (mm) | OD Tolerance | Wall Thickness Tolerance | Straightness |
| ASTM A213/A213M | < 25.4 | ±0.10 | ≤38.1: +20%t/0 >38.1: +22%t/0 | Reasonable straightness HRB < 90 |
| 25.4 ~ 38.1 | ±0.15 | |||
| 38.1 ~ 50.8 | ±0.20 | |||
| 50.8 ~ 63.5 | ±0.25 | |||
| 63.5 ~ 76.2 | ±0.30 | |||
| 76.2 ~ 101.6 | ±0.38 | |||
| 101.6 ~ 190.5 | ±0.38 ~ 0.64 | |||
| >190.5 ~ 228.6 | ±0.38 ~ 1.14 | |||
| ASTM A312/A312M | 10.3 ~ 48.3 | +0.40/-0.80 | Not specified / -12.5%t | Reasonable straightness HRB < 90 |
| 48.3 ~ 114.3 | +0.80/-0.08 | |||
| 114.3 ~ 219.1 | +1.60/-0.80 | |||
| 219.1 ~ 457.2 | +2.40/-0.80 | |||
| 457.2 ~ 660.4 | +3.20/-0.80 | |||
| 660.4 ~ 864 | +4.00/-0.08 | |||
| 864 ~ 1219.2 | +4.80/-0.08 | |||
| JIS G3459 | < 60 | ±0.25 | D＜40: +0.40, +22%t/0 D≥40: +0.40, +22%t/0 | Practical straightness HRB < 90 (special requirement) |
| 60 ~ 80 | ±0.30 | |||
| 80 ~ 100 | ±0.40 | |||
| 100 ~ 120 | +0.40/-0.60 | |||
| 120 ~ 160 | +0.40/-0.80 | |||
| 160 ~ 200 | +0.40/-1.20 | |||
| >200 | +0.40/-1.60 |
Note: The specifications are for reference only; specific tolerances and technical requirements are subject to the terms of the order.
Stainless steel seamless tube is manufactured by piercing solid steel billets, which are then rolled or drawn into hollow tubes. Welded tubes, on the other hand, are formed from steel strips or steel plates and joined by welding. Seamless tubes have no longitudinal welds, giving them certain advantages in applications that require resistance to pressure and temperature, as well as the integrity of the welded joint. However, the specific choice still depends on dimensional requirements, material grades, applicable standards, operating conditions, and budget.
Fluid composition, operating temperature, pressure fluctuations, flow conditions, and maintenance practices all affect the service life of the tubes. Even stainless steel can be subject to localized corrosion under unsuitable conditions. Assessing actual operating conditions and corrosion risks helps in selecting the appropriate material and developing a maintenance plan.
Accurate cutting plans help reduce scrap and unnecessary material consumption. By coordinating tube lengths, processing drawings, cutting sequences, and connection points, material utilization can be improved and leftover tube segments minimized. At the same time, a reasonable allowance for cutting loss should be included in the initial material quantity calculation.
Yes. Seamless stainless steel tubing can generally be cut, bent, drilled, and machined, depending on the material grade, wall thickness, and desired shape. Using the appropriate tools and process parameters helps minimize deformation, surface damage, and dimensional changes during machining.
Heat treatment affects the microstructure, mechanical properties, and corrosion resistance of stainless steel tubes. For austenitic stainless steel, solution heat treatment is typically used to help restore certain corrosion resistance properties that have been compromised during manufacturing and processing. The specific heat treatment method depends on the material grade, production process, applicable standards, and usage requirements.
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