NAI LOK CO., Ltd established in 2000. has made a name of itself in the list of top suppliers of in China. We focus on the production, research and development, sales of high quality nickel alloy tube and high purity seamless tube. We have more than 20 years of precision tube manufacturing and 10 years of export experience.
Our annual design capacity is 1, 500 tons of seamless steel tubes, utilizing a cold rolling-based process that leads domestically, combined with rolling and drawing processes. We can also provide ODM, OEM and agency services for global customers.
Nickel Alloy Seamless Tube are widely used in petrochemicals, semiconductor manufacturing, instrumentation, military, nuclear power, and other industries, as well as in cutting-edge scientific fields such as national defense and aerospace.
Nickel Alloy Seamless Tube:
400Series:UNS N04400
600Series:UNS N06600,UNS N06601,UNS N06625
800Series:UNS N08800,UNS N08810,UNS N08811,UNS N08825
Pure Nickel Alloy Tube:UNS N02200,UNS N02201
UNS N10276,UNS N06022,UNS N06200,UNS N10665,UNS N10675
High Temperature Alloy:GH3030,GH3039
Other type Alloy:UNS N08020,UNS N08028
Features of Duplex Stainless Steel 2205 Pipe
- Lower price of Duplex stainless steel pipe in Mumbai
- Low thermal expansion
- Known for extended long life durability
- Better price stability
- High corrosion resistance
- duplex stainless steel pipe material have higher strength leading to weight saving
- Improved resistance to stress corrosion cracking
- Can be used in harsh environments such as seawater
- Greater corrosion resistance particularly stress corrosion cracking
- Double the strength of austenitic stainless steels
Material |
Stainless steel SS316 UNS S31603 |
Wall Thickness |
0.028inch - 0.083 inch |
Length |
6000mm(optional:4000mm),(+/-10% possible) |
Inside Surface Roughness |
BA grade:Ra≤0.6μm
EP grade:Ra≤0.25μm |
Size |
1/8"- 6" |
Ordering Informatin
Part Number |
Tube OD(in) |
Wall Thickness(in) |
Length(mm) |
TSSM-02T028L06 |
1/8 |
0.028 |
6000 |
TSSM-04T035L06 |
1/4 |
0.035 |
6000 |
TSSM-04T049L06 |
1/4 |
0.049 |
6000 |
TSSM-04T065L06 |
1/4 |
0.065 |
6000 |
TSSM-06T035L06 |
3/8 |
0.035 |
6000 |
TSSM-06T049L06 |
3/8 |
0.049 |
6000 |
TSSM-06T065L06 |
3/8 |
0.065 |
6000 |
TSSM-08T035L06 |
1/2 |
0.035 |
6000 |
TSSM-08T049L06 |
1/2 |
0.049 |
6000 |
TSSM-08T065L06 |
1/2 |
0.065 |
6000 |
TSSM-10T065L06 |
5/8 |
0.065 |
6000 |
TSSM-12T065L06 |
3/4 |
0.065 |
6000 |
TSSM-16T083L06 |
1 |
0.083 |
6000 |
TSSM-20T095L06 |
1-1/4 |
0.095 |
6000 |
TSSM-20T120L06 |
1-1/4 |
0.120 |
6000 |
TSSM-24T120L06 |
1-1/2 |
0.120 |
6000 |
TSSM-24T134L06 |
1-1/2 |
0.134 |
6000 |
TSSM-32T134L06 |
2 |
0.134 |
6000 |
TSSM-32T188L06 |
2 |
0.177 |
6000 |
Applications of Duplex 2205 Tubing
- Petrochemicals
- Power Generation
- production and transportation of oil and gas
- Off-Shore Oil Drilling Companies
- Pipe for Sea Water Equipment
- Cooling pipe
- Heat exchangers
- Gas Processing
- Pharmaceutical Equipment
- Chemical Equipment
- Structural and mechanical components

Quality Control
To ensure that 100% of the products meet the required standards before leaving the factory, NLK strictly adheres to the quality management system requirements of ISO 9001:2008, implementing comprehensive quality control through regular inspections by dedicated inspectors, random checks, and full inspections. We always focuses on process control as the core of quality assurance, ensuring the quality at every critical stage of production to guarantee the final performance of the products. NLK places great emphasis on enhancing the theoretical knowledge and operational skills of its employees. Through regular professional training sessions and specialized lectures, it improves the professional competence of its staff to ensure continuous improvement in product quality during the production process. The company also possesses a complete set of advanced testing equipment and a large number of experienced professional inspectors, and has established a provincial-level testing
center to ensure that products leave the factory without defects.
Application Field
The company's products are widely used in various fields such as
semiconductors, petroleum, chemical, heat exchangers, instrumentation,
mechanical manufacturing, environmental engineering, food,
biopharmaceuticals, shipbuilding, papermaking, military, power plants
(nuclear power, thermal power, and hydropower), etc.

