Vinto Stainless – Premium Stainless Steel Welded Tubes & Pipes Manufacturer in China

About Vinto Stainless

Vinto Industrial Co., Ltd. is a leading manufacturer and exporter of stainless steel welded tubes and pipes based in China. With years of industry experience, we specialize in producing high-precision tubing for critical applications across diverse sectors.

Our commitment to innovation, quality assurance, and customer satisfaction has positioned us as a reliable partner for global clients in industries such as food & beverage, pharmaceuticals, energy, automotive, and construction.

10+

Years of Experience

30+

Global Markets

Our Product Range

High-quality stainless steel welded tubes and pipes engineered for performance, reliability, and compliance with international standards.

Sanitary & Dairy Tubing

Precision-welded stainless steel tubing for hygienic applications in food, beverage, and pharmaceutical industries. Smooth internal finish ensures easy cleaning and contamination control.

• ASTM A270 / ISO 2037 compliant
• Grades: 304, 316L
• Sizes: 1/4" to 6"
• Surface: Ra ≤ 0.8 μm

Boiler & Heat Exchanger Tubing

Designed for high-temperature and high-pressure environments. Ideal for power plants, HVAC systems, and industrial boilers.

• ASTM A249 / A269 compliant
• Grades: 304H, 316H, 321
• OD: 12.7mm to 76.2mm
• Annealed & Pickled Finish

Industrial Pressure Tubing

Pressure Purpose Tubing

High-strength welded tubes for fluid conveyance under pressure. Used in oil & gas, petrochemical, and mechanical systems.

• EN 10217-7 / ASTM A312
• Grades: 304, 316, 317L
• Wall thickness: 1.5mm to 12mm
• Hydrostatic testing standard

Muffler & Exhaust Tube

Corrosion-resistant tubing for automotive exhaust systems. Optimized for thermal cycling and long-term durability.

• ASTM A554 / JIS G3446
• Grades: 409, 439, 304
• Shapes: Round, Oval
• Finish: BA, 2B, or Polished

Annealed & Pickled Tubing

Softened and corrosion-resistant tubing with a clean surface finish. Ideal for secondary forming and welding operations.

• ASTM A450 / A943
• Grades: 304, 316, 321
• Full solution annealing
• Acid pickling or electrolytic cleaning

Mechanical & Structural Tubing

High-strength welded tubes for construction, machinery, and structural frameworks. Excellent weldability and formability.

• ASTM A554 / A511
• Grades: 304, 316, 201
• Shapes: Round, Square, Rectangular
• Surface: 2B, BA, Brushed

Stainless Steel Strip

Cold-rolled precision strip used as raw material for tube forming, stamping, and component manufacturing.

• ASTM A666 / JIS G4305
• Grades: 301, 304, 316
• Thickness: 0.1mm to 3.0mm
• Width: 10mm to 600mm

Profiled Tubes

Profiled Stainless Tubes

Custom-shaped welded tubes for specialized applications in architecture, automotive, and industrial equipment.

• Custom cross-sections available
• Grades: 304, 316, 430
• Precision roll forming
• Tolerances: ±0.1mm

Understanding Stainless Steel

Key Grades We Use

304 / 304L: General-purpose austenitic steel with excellent corrosion resistance and formability.
316 / 316L: Enhanced pitting resistance due to molybdenum; ideal for marine and chemical environments.
321: Stabilized with titanium for improved resistance to intergranular corrosion at high temperatures.
409 / 439: Ferritic grades used in automotive exhaust systems for cost-effective heat resistance.
301: Work-hardening grade suitable for spring components and structural applications.

Production Standards

Our products comply with major international standards including:

• ASTM A270 – Sanitary tubing
• ASTM A249 – Welded SS tubes for boiler, superheater, heat exchanger
• ASTM A312 – Seamless and welded SS pipes
• EN 10217-7 – Welded steel tubes for pressure purposes
• ISO 2037 – Stainless steel tubes for the food industry

Our Quality Assurance Process

Raw Material Inspection

Only certified stainless steel strips from reputable mills are used.

Precision Welding

High-frequency induction welding ensures consistent, defect-free seams.

Annealing & Pickling

Restores corrosion resistance and removes scale after welding.

Testing & Certification

Hydrostatic, eddy current, tensile, and dimensional checks performed.

Inspection & Testing Includes:

Eddy Current Testing Hydrostatic Testing Tensile Strength Test Intergranular Corrosion Test Dimensional Accuracy Check Visual & Surface Inspection

Frequently Asked Questions

What are the advantages of welded stainless steel tubes vs. seamless?

Welded tubes offer tighter dimensional tolerances, better surface finish, and lower cost for most industrial applications. With modern high-frequency welding and post-weld treatments, performance is comparable to seamless in many cases.

Can you produce custom sizes or shapes?

Yes, we offer custom roll forming and welding for non-standard diameters, wall thicknesses, and profiled cross-sections. Contact us with your specifications.

What certifications do you provide?

We provide Mill Test Certificates (MTC) per EN 10204 3.1, including chemical composition, mechanical properties, and test results. Additional third-party inspections (SGS, BV, etc.) available upon request.

What is the typical lead time for orders?

Standard products: 15–25 days. Custom orders: 25–40 days depending on complexity. We maintain raw material stock for faster turnaround.

China Quality Suppliers fobcompany.info

Notice for Buyers: If you are a buyer, the above information is generated by AI collection and does not constitute any advice. If necessary, please visit the corresponding official website.

For Domain Owners: If you are the domain owner and do not want to be included by fobcompany.info, please contact support@fobcompany.info via your corporate email to cancel. We will cancel your inclusion within 3 business days.

如果您是域名所有者不想被fobcompany.info收录请用企业邮箱联系support@fobcompany.info 取消收录我们将在3个工作日取消您的收录

Service Request: If you are other domain and want to be included, please contact support@fobcompany.info

如果您是其他域名合作也请联系support@fobcompany.info

Premium Stainless Steel Welded Tubes & Pipes