Introduction

Shipbuilding steel generally refers to the steel for hull structure, it refers toaccording to the classification to build production specifications for the manufacture of hull structure steel. Often as a special steel orders, scheduling,sales, a ship comprises a ship plate, steel etc..

2 specification

Currently has several large iron and steel enterprises in China the production,but also can according to user needs production of different national standardof ship steel, such as the United States, Norway, Japan, Germany, France,etc..

Varieties and specifications

In hull structural steel according to the minimum yield point strength: Division ofgeneral strength of structural steel and high strength structure steel.

The general strength of structural steel China Classification Society standardsare divided into: A, B, D, E four grades; high strength structural steel China Classification Society standards into three grades, four grades.

Acceptance notice of delivery of ship steel

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1, certificate of quality review:

Mill delivery must according to the requirements of users according to the standard stipulated in the contract delivery and provide the original certificate of quality. The certificate, must have the following contents:

(1) specification requirements; (2) quality record number and certificatenumber; (3) technical grade batch number,; (4) the chemical composition and mechanical properties; (5) the approval of the classification society certificate and surveyor signature.

2, physical examination:

Ship steel delivery, physical objects should have the production factory mark.There are specific:

(1) classification society recognized signs; (2) using the paint box or marking,including technical parameters such as furnace batch number, standardgrade, the length and width dimensions; (3) the appearance of smoothsmooth, defect free.