| Grade | Standard | Outside Diameter | 8mm-711mm |
Alloy 600
Alloy 601
Alloy 625
Alloy 825
Alloy 800/800H/800HT
Alloy C276
Alloy C22
Alloy 400
Alloy K500
Alloy 200
Alloy 201
... | ASTM-B444
ASTM-B167/163
ASTM-B622
ASTM-B423
...... | Wall Thickness | 1mm-50mm |
| Length | ≤20m |
| Inspection | Appearance/ Dimensional test, PMI;
NDT: UT/ ET/ HT;
Physical & chemical test |
| Certificates | ISO/PED/AD2000/TS |
| Package | End protection/ Woven bags/ Wooden cases |
ASTM B622 nickel alloy pipe:
ASTM B622 nickel alloy pipe is a pipe with excellent corrosion resistance and high temperature resistance, which is widely used in chemical, oil and gas, marine engineering, aerospace and nuclear energy industries. It is made of nickel and its alloys (such as Inconel, Incoloy, etc.), which can withstand the challenges of extreme temperatures and corrosive media, and is suitable for chemical reactors, heat exchangers, oil and gas pipelines, and seawater desalination systems. The good mechanical strength, toughness and welding properties of nickel alloy pipes make it an ideal choice for long-term stable operation in high pressure, high temperature and corrosive environments. 
Factory advantages and features:
1. Huxin Pipe, a highly reliable seamless pipe manufacturer with 36 years of experience in pipe production
2. Diversified pipe sizes - in addition to the regular sizes, we can also produce 18 metres and 25 metres pipe extensions.
3. Well-equipped production and inspection - plant facilities include cold rolling mills, annealing furnaces, pickling baths, ultrasonic eddy current integration, and physical and chemical laboratories
4. Complete quality control process - in addition to factory technicians, full-time MTSCO quality inspectors are on site before, during and after production.
5. Complete certifications - we have ISO/PED/AD2000/M650 certifications.
Introduction to Quality Control Inspection Methods:
Quality Assurance for Raw Materials
Our raw materials, sourced from esteemed steel mills such as Baosteel and Tsingshan, undergo stringent warranty and PMI checks to ensure top-notch quality. Stringent PMI checks and other inspections guarantee compliance with material specifications.
Supervised Production Process
From cold rolling, cold drawing, annealing, to pickling and surface treatment, 321 stainless tube manufacturing process is meticulously overseen. Skilled engineers, equipped with advanced tools, supervise each phase and capture detailed records through photography. Process cards guarantee precision and traceability throughout production.
Quality Assurance Before Shipment
Our dedicated QC team conducts comprehensive inspections, encompassing appearance, PMI, size, quantity, and more. Mechanical, hardness, ultrasonic, eddy current, and hydraulic tests are carried out. We also welcome third-party evaluations (SGS, TUV, BV) and ensure secure packaging and container reinforcement to ensure product integrity during transportation.
Packing of Pipes :
| Product | Packing |
| LCL PIPE | Plywood crate + protective pipe caps on both ends |
| FCL PIPE | Woven bag + protective pipe caps on both ends |
| LCL/FCL TUBE | Plywood crate + individual plastic bag wrapping + end caps on both sides |
Product Tags:
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ASTM B622 Nickel Alloy Tube For Chemical Environments , Alloy G-35 / UNS N06035 Seamless Tubing Images
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