PROFESSIONAL STAINLESS STEEL SUPPLIERS - GNEE

Since 2008, GNEE has specialized in the manufacturing and supply of stainless steel plates, coils, pipes, tubes, bars, and customized stainless steel products. All products are manufactured in accordance with international standards such as ASTM, ASME, EN, JIS, and GB/T, offering a wide range of grades, sizes, and surface finishes to meet diverse industrial requirements.

 

Our stainless steel products are exported to Europe, North America, Southeast Asia, the Middle East, South America, and Africa, serving industries including oil & gas, chemical processing, power generation, heat exchangers, food processing, marine engineering, pharmaceuticals, and construction. In addition to standard products, GNEE provides value-added services such as precision cutting, machining, polishing, and custom fabrication based on customer drawings or technical specifications, delivering efficient, one-stop stainless steel solutions for customers worldwide.

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RECENTLY COMPLETED ORDERS

Our recently completed orders demonstrate GNEE's capability in handling international stainless steel projects. From standard stock materials to customized solutions, we have supplied 304, 316L, 310S, , 2205, and 17-4PH stainless steel products for industries including oil & gas, chemical processing, power generation, heat exchangers, and marine engineering.

 Duplex 2205 Stainless Steel Pipes
4.5 Tons of Duplex 2205 Stainless Steel Pipes Exported to South Korea

View Project Cases→ 

310S Stainless Steel Pipes
6.5 Tons of 310S Stainless Steel Pipes Exported to Singapore
 AISI 431 Stainless Steel Plates
11.2 Tons of AISI 431 Stainless Steel Plates Exported to Spain
316L NO.1 Finish Stainless Steel Plates
8.6 Tons of 316L NO.1 Finish Stainless Steel Plates Exported to Russia
View Project Cases→

 

17-4PH Stainless Steel Plates
5.8 Tons of 17-4PH Stainless Steel Plates Exported to Germany
Duplex 2205 Stainless Steel Bars
1.2 Tons of Duplex 2205 Stainless Steel Bars Exported to Morocco
View Project Cases→

Stainless Steel Product Forms & Standard Specification 

Product Form ASTM/AISI Grades  Manufacturing Standards  Common Applications
Sheets & Plates 304/304L, 316/316L, 321, 310S, 430, 904L, 2205 ASTM A240, EN 10088-2, JIS G4304 Chemical tanks, food processing, architecture, pressure vessels.
Coils & Strips 201, 301, 304, 316L, 409, 410, 430 ASTM A240/A480, JIS G4305 Precision stamping, automotive parts, electronic components.
Seamless Pipes 304, 304L, 316, 316L, 321, 347, 310S ASTM A312, A213, A269, DIN 17456 High-pressure fluid transport, oil & gas, heat exchangers.
Welded Pipes 304, 304L, 316, 316L, 409, 439 ASTM A312, A554, A249, EN 10217-7 Decorative piping, exhaust systems, structural supports.
Round & Hex Bars 303, 304, 316, 316F, 416, 420, 630 (17-4PH) ASTM A276, A484, A582, JIS G4303 Machined components, shafts, fasteners, aerospace parts.
Angles & Channels 304, 304L, 316, 316L ASTM A276, A479, JIS G4317 Structural frames, bridges, marine engineering.
Fittings & Flanges 304L, 316L, 321, 347, Duplex 2205 ASTM A182, A403, ANSI B16.5 Industrial piping systems, water treatment, shipbuilding.

 

PRODUCTS & MANUFACTURING CAPABILITIES

Our advanced stainless steel production facilities cover the entire manufacturing process-ranging from hot rolling, cold drawing, laser cutting, and CNC machining to polishing, heat treatment, and final inspection-ensuring that every product meets ASTM, ASME, EN, and JIS standards while delivering reliable quality and consistent precision.

Stainless steel annealing equipment
Stainless steel annealing equipment
Stainless steel welded pipe production line
Stainless steel welded pipe production line
Rolling Mill
Rolling Mill

Slit coil

Slit coil

Decoiling and flattening

Decoiling and flattening
Guillotining (Shearing)
Guillotining (Shearing)

 

QUALITY CONTROL

 

All stainless steel products shall be furnished in the heat-treated condition unless the order specifically states that no final heat treatment shall be applied. Tensile tests, hydrostatic test, nondestructive electric tests, ultrasonic tests, eddy-current tests, tension tests, and flattening tests shall be made to conform to the requirements specified. 

Flattening test
Flattening test
Flaring test
Flaring test
 
Hydrostatic test
Hydrostatic test
Intergranular corrosion test
Intergranular corrosion test
Tensile test
Tensile test
Eddy Current Testing
Eddy Current Testing

To learn more about our quality control process, please click the link below to view our product inspection videos, testing procedures, and inspection reports.

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CERTIFICATES & TEST REPORTS

 

GNEE provides comprehensive quality assurance documentation, including Manufacturer Test Certificates (MTC), raw material certificates, 100% radiographic testing (RT) reports, and third-party inspection reports conforming to EN 10204 3.1. We can also provide EN 10204 3.1 certification and other compliance certificates, such as NACE MR0175/MR0103 certification for acidic environments.

 

All materials undergo rigorous chemical composition analysis, mechanical property testing, and non-destructive testing before delivery. Upon client request, we can also provide austenite content testing, ferrite content measurement, PMI (Positive Material Qualification), ultrasonic testing (UT), hydrostatic testing, and customized inspection procedures according to international standards and project specifications.

 

304 stainless steel Material List
304 stainless steel Material List
304L stainless steel Material List
304L stainless steel Material List
310S stainless steel Material List
310S stainless steel Material List
316L stainless steel Material List
316L stainless steel Material List
321 stainless steel Material List
321 stainless steel Material List
410S stainless steel Material List
410S stainless steel Material List

If you need a specific product, please let me know:
Are you looking for metal raw materials (such as sheets or tubes)?
Do you have any specific grade or application requirements? I can assist you.

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GNEE PRODUCT PACKAGING AND SHIPPING

 

Packaging: Each sheet or coil is wrapped in moisture-proof paper, lined with plastic film, and secured with steel straps. The outer layer is protected by a wooden pallet or crate to ensure safety during international transportation.
Labeling: Each package includes the furnace number, grade, dimensions, and standard information.
Delivery Time: Usually within 7-15 business days after receiving the down payment. 

Stainless steel pipe packaging
Stainless steel pipe packaging
Stainless steel bar packaging
Stainless steel bar packaging
Stainless steel plate packaging
Stainless steel plate packaging
 
Stainless steel coil packaging
Stainless steel coil packaging
 

GNEE CUSTOMER VISIT

 

GNEE supplies high-quality stainless steel products-including grades 304, 316L, 310S, 904L, 2205, and 17-4PH-to customers in over 60 countries and regions worldwide, including the United States, Mexico, Kuwait, Colombia, Turkey, Italy, Brazil, France, and Vietnam. We have established ourselves as a trusted stainless steel supplier for clients across industries such as oil and gas, chemical processing, power generation, food processing, marine engineering, and construction.

Mexican clients visited
Mexican clients visited
Vietnamese clients visited
Vietnamese clients visited
Colombian client visited
Colombian client visited
Thai clients visited
Thai clients visited
Japanese clients visited
Japanese clients visited
Egyptian clients visited
Egyptian clients visited
U.S. Purchasing Delegation Visit
U.S. Purchasing Delegation Visit
German Customer Factory Audit
German Customer Factory Audit
 
Canadian Customer Workshop Visit
Canadian Customer Workshop Visit
 
Brazilian Customer Equipment Inspection
Brazilian Customer Equipment Inspection
 
Saudi Arabian Production Line Tour
Saudi Arabian Production Line Tour
 
South Korean Customer Product Inspection
South Korean Customer Product Inspection

GNEE STAINLESS STEEL PARTICIPATES IN THE VIETNAM EXHIBITION

 

GNEE Group participated in an exhibition at the Vietnam National Exhibition and Convention Center (NECC), showcasing a diverse range of products-including stainless steel, duplex steel, nickel-based alloys, and pipe fittings-at its booth. The event attracted partners from over 20 countries for business discussions and strengthened cooperative relationships with more than 80 domestic and international clients.

GNEE Group Participated In NECC Exhibition
GNEE Group Participated In NECC Exhibition
GNEE Group Participated In NECC Exhibition
GNEE Group Participated In NECC Exhibition
GNEE Group Participated In NECC Exhibition
GNEE Group Participated In NECC Exhibition

 

FAQ

1. What stainless steel products do you manufacture?

We manufacture a comprehensive range of stainless steel products, including pipes and tubes (seamless and welded), sheets and plates, coils, strips, round bars, angles, and pipe fittings (flanges, elbows, tees). We specialize in grades such as 304, 316L, 321, 310S, 430, and Duplex steel (e.g., 2205, 2507) for various industrial and decorative applications.

 

2. What international standards do you produce to?

Our products are manufactured in strict accordance with ASTM/ASME (American), EN/DIN (European), JIS (Japanese), and GB (Chinese) standards to ensure global compatibility and high performance in demanding environments.

 

3. Can you manufacture custom sizes or provide specific surface finishes?

Yes. We offer extensive customization, including:

Dimensions: Custom widths, lengths, and thicknesses.

Surface Finishes: 2B, BA, No.1, No.4, Hairline, Mirror (8K), PVD Color Coating, and Embossed/Etched patterns.

Processing: Precision laser cutting, CNC bending, hole punching, and machining based on your technical drawings.

 

4. What is your minimum order quantity (MOQ)?

For stock items, our MOQ is as low as 1 piece or 1 coil. For custom-manufactured products or special grades, the MOQ typically ranges from 1 to 3 tons, depending on the material specifications and production complexity.

 

5. Can I request samples before placing a bulk order?

Certainly. We provide free standard samples (e.g., small plates or tube sections) for quality evaluation. For custom samples made to your exact drawings, a small prototype fee may apply. Shipping is usually arranged via express couriers like DHL, Fedex, or UPS.

 

6. What payment methods do you accept?

We primarily accept T/T (Telegraphic Transfer) and L/C (Letter of Credit) at sight. Other flexible payment terms can be negotiated for long-term partners or large-scale projects.

 

7. Do you provide Material Test Certificates (MTC)?

Yes. Every shipment is accompanied by an EN 10204 3.1 Mill Test Certificate (MTC), detailing the chemical composition and mechanical properties. We also support third-party inspections by SGS, BV, or TÜV to guarantee quality compliance.

 

8. What is your typical production lead time?

In-stock items: 3–7 working days for processing and loading.

Custom orders: 15–30 days, depending on the grade, quantity, and the complexity of the processing required.

 

9. How are your products packaged for export?

To prevent scratches and damage during transit, we use:

Surface Protection: PVC or PE laser-film coating for sheets and tubes.

Outer Packaging: Seaworthy wooden cases, reinforced steel-strapped pallets, or waterproof kraft paper wrapping. All packaging meets international maritime export standards.

 

10. How can I request a quotation?

To receive a precise quote, please provide the following details: Material Grade (e.g., 304 or 316L), Dimensions (Thickness, Width, Length/OD, WT), Surface Finish, Quantity, and Application. You can send these via our website form or directly to our sales email.

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