Ocean Engineering Tube & Pipe

Product

Size

Steel grade

Specification

Features

Application

OD(mm)

WT(mm)

Legs

324-720

20-85

A517Gr.Q

ASTM A517

Using hot rolling seamless tube & pipe instead of semi-circle plate;

Using low finishing deformation temperature and large deformation quantity,more tiny uniform austenite grain size;

Delivered by quenching+tempering condition to make the products obtain excellent tenacity and performance stability.

Jack-up ocean oil rig

Bracing&Pipe

114.3-720

5.0-85

X52Q

API5L

To guarantee the basic strength,toughness and welding performance of the product by the composition of relative low C and high Mn content; 

To increase the material toughness and performance stability by using the micro alloy strengthening principle of elements Nb and Ti.

Jack-up ocean oil rig