EZ STEEL INDUSTRIAL CO.,LTD, together with LONG-RUN METALS CO.,LTD, is the export division and window company of EZ STEEL GROUP, which was founded in 1996 and has been committed to the development and manufacturing of industrial tubes in the past 20 years. It is one of the largest steel tube manufacturing enterprise groups in China. The group possess fixed assets over 200million and more than 800 employees with annual production capacity over 300 thousand tons.
The company has continuously introduced the world advanced manufacturing equipment and now is able to produce welded and seamless steel tube, copper tube and nickle alloy tube. We also have our own coating facilities and workshops for further processing. After years of development, EZ STEEL GROUP and the affiliated enterprises have obtained many kinds of domestic and international certifications including ISO 9001 Quality Management System Certification, ISO14000 Environment Management System Certification, CE, License for Manufacture of Pressure Piping in China, etc. The company has obtained good domestic achievements and is the nominated supplier of CNPC, SINOPEC and CNOOC. The product are exported to Southeast Asia, the Middle East and Africa, Europe, Australia, North and Latin Americas via trade companies, and are widely used in pipeline works, foundation works, steel structure works, boiler and condenser fabrication, oil refinery plant, power plant, sugar-making plant, ship-building and offshore construction projects etc.
Holding the concept of First-class Brand, First-class Service, First-class Value, EZ STEEL GROUP is aiming to build up a win-win enterprise platform for both our customers and employees.

Fabrication Standard: ASTM B111, EN12451
Dimensions: OD38.1 x 2.77 x 12192MM
Application: Power Plant Heat Exchanger Equipment
Cu | Tin | Pb | Fe | Zn | As | Al | Mn | Cr |
70~73 | 0.9~1.2 | 0.07max | 0.06max | Rem | 0.02~0.06 | \ | \ | \ |
Fabrication Standard: ASTM B111, EN12451
Dimensions: OD60.3 x 3.05 x 12192MM
Application: Power Plant Heat Exchanger Equipment
Cu | Tin | Pb | Fe | Zn | As | Al | Mn | Cr |
76~79 | \ | 0.07max | 0.06max | Rem | 0.02~0.06 | 1.8~2.5 | \ | \ |


Fabrication Standard: ASTM B111
Dimensions: 3/4" x BWG 16 x 4877MM
Application: Oil Refinery Facilities
Cu | Tin | Pb | Fe | Zn | As | Al | Mn | P |
Rem | \ | 0.01 max | 1.5~ 3.5 | 0.20 max | \ | 6.0~ 8.0 | 1.0 max | 0.015 max |





Welcome to EZ Steel Industrial Co., Ltd., where we manufacture high-quality industrial metal tubing products with precision and care. Our state-of-the-art facilities include mechanical properties test machines, supersonic testing machines, eddy current test machines, hydrostatic test machines, and spectrum analyzers for chemical composition analysis. This ensures that our manufacturing processes meet the highest standards, providing you with top-notch quality products.
We welcome customers and third-party inspections from reputable companies such as SGS, BV, MOODY, Lloyd's, TUV, and DNV to verify the quality of our products. Your satisfaction and trust are our top priorities.
Admiralty Brass Tube for condenser and heat-exchangers installation:1)Up to GB/T8890 / ASTM B111 / JIS H3300 / BS EN12451 standards and so on.
2) Material Brand of Admiralty Brass Tube:
Grade | USA | U.K | Germany | Japan | ||
China BG | ASTM | CDA | BS | DIN | No | JIS H |
HSn70-1 | C44300 | 443 | CZ111 | CuZn28Sn1 | 2.0471 | C4430 |
4)Dimensions: Outer diameter:5-610mm, Wall thickness: 0.5-12mm or according to the buyers' requirements, and also length and tolerance subject to the buyer's decisions.
5)Tubes in good straightness, with clean surface of both inside and outside
6)Application range: Admiralty Brass Tube for condenser and heat-exchangers, Water Evaporators, Boiler Blowdown Heat Exchangers, air coolers, Gland Steam Condensers, Steam Ejector, Turbine Oil Coolers, Fuel Oil Heaters, Compressed Air Inter and After Coolers, Ferrules, Oil Well Pump Liner, Distiller , Marine Industry , and Nuclear Power etc.
Aluminum Brass Tube for condenser , heat-exchangers and nuclear power plant applications:
1)Up to GB/T8890 / ASTM B111 / JIS H3300 / BS EN12451 standards and so on.
2) Material Brand of Aluminum Brass Tube:
Grade | USA | U.K | Germany | Japan | ||
China BG | ASTM | CDA | BS | DIN | No | JIS H |
HAL77-2 | C68700 | 687 | CZ110 | CuZn22Al | 2.0460 | C6870 |
4)Dimensions: Outer diameter:5-100mm, Wall thickness: 0.5-10mm or according to the buyers' requirements, and also length and tolerance subject to the buyer's decisions.
5)Tubes in good straightness, with clean surface of both inside and outside
6)Application range: Aluminum Brass Tube for condenser and heat-exchangers, Water Evaporators, Boiler Blowdown Heat Exchangers, air coolers, Gland Steam Condensers, Steam Ejector, Turbine Oil Coolers, Fuel Oil Heaters, Compressed Air Inter and After Coolers, Ferrules, Oil Well Pump Liner, Distiller , Marine Industry , and Nuclear Power etc.
- Are you a manufacturer or a trading company?
We are a manufacturer for most sizes listed and can assist with the entire project package if in need. - Where are your plants located in China?
By 2019, we have a carbon steel plant in Cangzhou City and a stainless steel plant in Lishui City, with details available on our website. - Do you have a certified quality assurance system?
Yes, we boasts ISO 9001:2015 certified factories. - Can I visit your plant before placing an order?
Of course, we welcome and respect all clients' plant visits. - What is the market percentage for domestic and international sales?
Our domestic market share is approximately 70%, with international sales accounting for less than 30% over the past 5 years.