UNIT I • São Paulo • MATRIZ • +55 11 2632 0277 • comercial1@trefita.com.br
UNIT II • São Paulo • +55 11 2795 2555 • comercial2@trefita.com.br
 UNIT III • MG • Belo Horizonte • +55 31 3555 5555 • comercial3@trefita.com.br
 UNIT IV • SC • Araquari • +55 47 3511 4242 • comercial2@trefita.com.br


Over 20 years’ experience with constant investment in new technologies, machinery and late-generation equipment, together with ongoing production processes improvement.

271017 ACOS TREFITA 218
271017 ACOS TREFITA 253
AÇOS TREFITA is ISO 9001:2015 certified, guaranteeing quality and reliability to customers across Brazil and Latin America as a leading MECHANICAL METAL supplier. We serve different market segments, such as Forging Mills, Machining Mills, Fixers, Energy, Mining and more.
Our varied and comprehensive inventory guarantees
distribution to all of Brazil and Latin America.

With headquarters in São Paulo, with facilities covering more than 22 thousand square meters, AÇOS TREFITA took a strategic presence in the state of Minas Gerais in 2006. There, in a region known as a pillar of the Brazilian mechanical industry, the company maintains a 7-thousand-square meter facility. AÇOS TREFITA’s three units collect the biggest and most varied stock of carbon and alloy material in Brazil. The company offers prompt service and bespoke delivery, with technical precision and competitive commercial terms.

Cold Drawn steel: carbon and alloy

• Round: 6.35-127.0 mm
• Square: 12.70-50.80 mm
• Hexagonal: 12.70-50.80 mm
• Straightened: 6.35-101.60 mm
• Peeled and polished: 20.00-150.00 mm

Rolled Round Bars up to 330.00 mm

Forged products up to 1500 mm

Aços Trefita Ltda’s total quality is based on partnerships with customers and suppliers, on meeting every applicable requirement, and on the satisfaction of customers and other stakeholders through ongoing improvement of its quality-management system, processes, products, and human resources..



Chemical composition verification


HBW measurement unit, 3000Kgf Load
Metering capacity up to (o)320mm

Metallography Quality Control

AÇOS TREFITA has a complete machining infrastructure. Its production line can do everything, from straightening rough-finished bars through to machining parts according to requested designs and plans, providing quality semi-finished products.

Safe and reliable products developed with due consideration
given to the Planet’s natural resources.

AÇOS TREFITA’s range of products includes, among others, round, square and hexagonal bars for mechanical construction. Its meticulous traceability system tracks all raw-material provenance and quality standards, with strict lot control from materials receipt through to delivery to the end customer. Ultrasound tests and lab analyses throughout the process guarantee product quality.

Our mission is to provide the best supply solutions for mechanical construction steel, with speed and quality.

Our values

RELATIONSHIPS We honor our tradition and family spirit; we recognize loyalty, trust and dedication. We are humble and admire humility.

QUALITY•Our product must be the benchmark for quality. We uphold this choice by embracing continued improvement, building our employees’ technical skills and our suppliers’ excellence.

A FOCUS ON CUSTOMERS • We listen carefully to our customers and will face any challenge to serve their needs.

SAFETY AND WELL-BEING • Safety is non-negotiable for us. We develop self-reporting and take care of one another. We strive to make everyone feel appreciated, accomplished and happy.

BUSINESS SUSTAINABILITY • We take responsibility for our Planet, and engage in waste and risk management. We uphold human dignity, respect workers’ rights and reach out to the community. We draw enthusiasm from our own prosperity and our customers’ and suppliers’ as well.


Learn about our history spanning more than 20 years