We will produce En8D Chromed Plated Rod, din2391 seamless precision steel tube, c68700 aluminum brass with high quality, high grade and reasonable price with the enterprising spirit of regret, self-improvement and pioneering spirit. We look forward to reactivating our company connection. We choose the best materials and excellent design. We adhere to the people-oriented approach and cultivate high-quality, professional and innovative talents to inject a constant impetus for the development of the company.
Products Description
Our advantages
1. High Strength
Our Sa 312 316l Thick Wall Seamless Stainless Steel Tube is produced using a hot-piercing + multi-stage cold-drawing process, resulting in a uniform, high-density tube structure. Eccentricity is controlled below 5%, ensuring uniform wall thickness and enhanced resistance to high pressure, thermal shock, and vibration, making them suitable for high-pressure applications.
2. Strong Corrosion Resistance
Our tubes are made of PED/ISO certified 316L stainless steel, and each batch undergoes PMI testing to verify its precise chemical composition. Solution annealing, pickling, and passivation processes ensure excellent corrosion resistance.
3. Precise Dimensions
Our tubes are produced using advanced cold-drawing equipment with precise mandrel and die control, ensuring dimensional tolerances of ±0.05–0.1 mm in wall thickness. After drawing and annealing, the tubes are straightened using a high-tonnage straightening machine to ensure straightness ≤1.5 mm/m.
4. Surface Quality
Our pipes undergo pickling and passivation treatment, resulting in an inner surface Ra ≤ 1.5 μm and a contaminant-free surface. For demanding applications, we offer bright annealing (BA) or mechanical polishing.
5. Quality Control
Every batch of pipes produced by TORICH undergoes rigorous dimensional inspection to ensure dimensional tolerances comply with ASTM A312 standards. Hydrostatic and ultrasonic testing ensure the pipes are 100% free of cracks, inclusions, delamination, and can withstand high pressure without leakage risk.
applications
- Heat exchangers and condensers
- Pressure vessels and boilers
- Marine and offshore pipelines
- Chemical and petrochemical processing equipment
- Food and pharmaceutical industries
- High-pressure hydraulic and instrumentation systems
Chemical Composition
| Element | Carbon | Manganese | Silicon | Phosphorus | Sulfur | Chromium | Nickel | Molybdenum | Nitrogen |
| Content (%) | ≤ 0.035 | ≤ 2.00 | ≤ 0.75 | ≤ 0.045 | ≤ 0.030 | 16.0 – 18.0 | 10.0 – 14.0 | 2.0 – 3.0 | ≤ 0.10 |
Mechanical Properties
| Property | Tensile Strength | Yield Strength | Elongation | Hardness |
| Value | ≥ 485 MPa | ≥ 170 MPa | ≥ 40 % | ≤ 217 HB |
Possible Alternative Grades
- TP304 / 304L: A cost-effective alternative with good corrosion resistance in mild environments; suitable for general structural and process applications.
- TP317 / 317L: Higher molybdenum content than 316L, providing enhanced resistance to pitting and crevice corrosion in chloride-rich environments.
- TP321 / 321H: Stabilized with titanium, offering improved resistance to intergranular corrosion after welding; suitable for high-temperature service.
Products Show


Testing Equipment



Factory Equipment

Pickling equipment


Products Package

We change our single output of Stainless Steel Pipe Industry Application Thick Wall Tube for customers to the direction of providing products and services integrated with products, operation and maintenance support, and technology enhancement. We persist with the principle of 'quality 1st, assistance initially, continual improvement and innovation to meet the customers' for your management and 'zero defect, zero complaints' as the standard objective. With the efforts of all employees, our company has formed a relatively complete quality management system and realized one-stop production, supply and sales.
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