ASTM A554 A312 AISI 304/304L 316/316L Stainless Steel Square Pipe And Round Pipe

GNEE Steel is a leading pipe manufacturer in China with an annual production capacity of more than 1,500 tons. It specializes in customizing high-quality precision seamless pipes of various outer diameters, inner diameters, wall thicknesses and lengths, covering austenitic stainless steel, duplex stainless steel, pure nickel, nickel alloys, high-temperature alloys and other materials to meet the needs of customers' different projects.
We strictly follow the IS0 9001 quality management system for on-site management and have obtained IS0 9001AD2000, PED certification, etc. Our products have been inspected and approved by international authoritative third-party organizations such as TUVSGS, BV, ABS, LR, etc.

 

 

ASTM A554 A312 pipe in stock

Why choose GNEE

Advanced Manufacturing Capabilities:
Over 70 production lines and 28 polishing lines ensure high production volumes (over 2,000 tons per month) while ensuring precision.

Customized Expertise:

From standard sizes (e.g. ASTM A554, A312) to special sizes (e.g. slotted tubes, flat bars), we can customize to your exact specifications.

Superior Materials:

Certified alloys: AISI 304/304L, 316/316L with guaranteed composition (e.g. Cr 17-19.5%, Ni 8-10%, C ≤0.07%).

Fully Compliant:

All products meet South American and European export standards and are certified by ASTM, EN and other relevant certifications.

Efficient delivery cycle: 20-25 days for production + 30-35 days for shipping (e.g., an order placed now will arrive in early September).

Logistics support:

We provide cubic meter calculations, freight options, and secure packaging (small/large bales, seaworthy boxes).

 

We welcome the opportunity to discuss your upcoming purchase plans with you. Could you share your estimated demand for Q3? We are ready to provide competitive quotes and ensure seamless delivery.

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