Introduce

. Steel pipe has many types such as welded black steel pipe, cold rolled pipe, super thick pipe, large pipe, oval pipe ...

. Black steel pipe has the advantage of being cheap, but it is not suitable for the tropical monsoon environment of Vietnam, or it is wet, rusted. Black steel pipe is often used for the parts that are less or less affected by the outside with cheaper cost, more economical.

. With the outstanding feature of being able to withstand the effects of weather thanks to the outer layer of zinc coating, preventing oxidation, increasing the life of the box, galvanized steel pipe is used more widely and widely.

Standard

TCVN 1651 - 85, TCVN 3104 - 79, JIS G3112, BS 4449, ASTM 1997

Origin

Hoa Phat steel factory

Uses

Welded black steel pipes are applied in basic construction, scaffolding, mechanics, barriers, furniture, cars, motorcycles ...

Introduce

. Box steel has 2 types: black square steel box and galvanized square steel box

. Black square steel box has the advantage of being cheap, but it is not suitable for the tropical monsoon environment of Vietnam, or it is wet, rusted. Black square steel is often used for the parts that are less or less affected by the outside with cheaper, more economical cost.

. With the outstanding feature of being able to withstand the effects of weather thanks to the outer layer of zinc coating, preventing oxidation, increasing the life of the box, galvanized square box steel is used more widely and widely.

Standard

JIS G3101 , STK 400, ATSM A36

Origin

Hoa Phat steel factory

Uses

Used in constructing bridges and roads, building workshops, prefabricated house structures, mechanical engineering