Quality Metal Fabrication

47+ Years in the Business and Counting...

Premier Structural Steel & Heavy Fabrication Services

National Builtech Trading & Contracting Co. WLL is a premier engineering and manufacturing authority specializing in Light, Medium, and Heavy Structural Steel Fabrication. Based in Doha, Qatar, with a comprehensive global supply chain reaching the USA, we manage the complete fabrication lifecycle. From advanced structural design and material sourcing to non-destructive testing (NDT) and logistics, our high-precision facility delivers zero-tolerance quality for the oil & gas, commercial construction, and heavy industrial sectors

Core Manufacturing & Engineering Capabilities

Structural Steel Works: Precision fabrication of steel beams, trusses, portal frames, and pipe racks. (Key Milestone: Supplied >3000MT of Embedded Plates to major NFE/NFS projects).
Plate & Tank Fabrication: Heavy steel plate bending, CNC rolling, and cutting for custom pressure vessels, bulk storage tanks, silos, and industrial chutes.
Process Pipe Fabrication: Complete pipe spooling, industrial process pipelines, and heavy-duty support systems.
Industrial Skids & Modular Equipment: Custom modular assemblies, heavy machine bases, precision jigs, fixtures, and specialist steel mould fabrication.
Advanced Welding & Surface Finishing: Certified MIG, TIG, and Submerged Arc Welding (MS/SS). Comprehensive finishing services including abrasive blasting, hot-dip galvanizing, and industrial powder coating.

WHAT WE DO

Heavy Duty Steel Gratings

A36 Carbon Steel Hopper

Steel Ladder - S275JR

Carbon Steel Heavy Duty Precast Mould

A36 Steel Pier Mould

INDUSTRIAL EXHAUST SYSTEM

Custom Oxide Storage Tank

Rectangular Hollow Sections

Circular Hollow Sections

Overhead Conveyor Systems

Sand Plant Exhaust Ductwork

Storage Silo (Molasses Silos)

Carbon Steel Storage Tanks

Metering Bin / Feed Bin Tops

Foundry Ladles

OUR STANDARDS AND CERTIFICATIONS

Working with technical inspectors from Bureau Veritas, TUV & ABS we have created a robust Welding Procedure Specification and set of shop procedures as per the Global Standards.

PRE-INSPECTION BEFORE DISPATCH

Time is money, which is why we inspect to the fullest extent possible and certify your metal fabrication before shipping.

DEDICATED POINT OF CONTACT

Your dedicated, NBTC Qatar point of contact is committed for the life of your project, from design to delivery.

CARBON, STAINLESS STEEL & SPECIAL METALS

We’ll work with your preferred metal type for any Oil & Gas, Structural or architectural project as per your industry standards.

WE HANDLE ANY SIZE PROJECT

From small transfer carts to immense bulk moulds, we’ll ensure accuracy and quality are built in from the start.

TÜV SÜD

We are officially registered & certified with TÜV SÜD for ISO 9001:2015 which follow oversee the production procedures & operations.

The American Society of Mechanical Engineers

Our WPS conforms to ASME Section 9 and we are certified to fabricate custom steel tanks according to the API-650 standard.

Steel Fabrication Company Quality Standard

SAARA Certification

We are officially certified and conform to global standard - ISO 14001:2015 & 45001:2018

American Welding Society

Our welder certifications meet the American Welding Society AWS D1.1 (carbon steel) & AWS D1.3 (Steel Sheets) and AWS D1.6 (stainless steel) standards.

Marine
Architecture
Offshore
Cement
Construction
Coal & Biomass

INDUSTRIES SERVED

Construction
Energy Sector
Iron & Steel
Mining & Quarry
Marine
Petroleum

Pre-cast Factories
Shipping Ind.
Power Generation
Retail
Utilities
Sheds & Stables