Detail of GB/T 11577-2020

Introduction of GB/T 11577-2020

Container securing fitting for ships 1 Scope This standard specifies the requirements for classification and mark, test methods, inspection rules, marking, packaging, storage and transport of container securing fitting for ships (hereinafter referred to as securing fitting). This standard is applicable to the design, manufacture and acceptance of securing fitting. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 699-2015 Quality carbon structure steels GB/T 700-2006 Carbon structural steels GB/T 709-2019 Dimension, shape, weight and tolerances for hot-rolled steel plates and sheets GB/T 712-2011 Ship and ocean engineering structural steel GB/T 1591-2018 High strength low alloy structural steels GB/T 3077-2015 Alloy structure steels GB/T 6414-2017 Castings - Dimensional tolerances and geometrical tolerances and machining allowances GB/T 8923.1-2011 Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings GB/T 12362-2016 Steel die forgings - Tolerance and machining allowance GB/T 13912-2002 Metallic coatings - Hot dip galvanized coatings on fabricated iron and steel articles - Specifications and test methods GB/T 13914-2013 Tolerance of dimensions for stamping parts ISO 3874: 2017 Series 1 - Freight containers - Handling and securing ISO 17905: 2015 Ships and marine technology - Installation, inspection and maintenance of container securing devices for ships 3 Classification 3.1 Classification of securing fittings See Table 1 for classification of securing fittings. Table 1 Classification of securing fittings Category Name Code Type Category Name Code Type Fixed parts Foundation AA-1A 45° single dovetail type Movable parts Lock CA-1A 45° dovetail twist type AA-1B 45° single dovetail type CA-1B 55° dovetail twist type AA-2A 45° double transverse dovetail type CB-1 Split twist type AA-2B 55° double transverse dovetail type CC-1 Integral twist type AA-3A 45° double longitudinal dovetail type CD-1 Semi-automatic twist type AA-3B 55° double longitudinal dovetail type CE-1 Automatic type AB-1 Single embedded plate socket type CF-1 Bottom split twist type AB-2 Double transverse embedded plate socket type CG-1 Bottom semi-automatic twist type AB-3 Double longitudinal embedded plate socket type CH-1 Central automatic type AB-4 Quadruple embedded plate socket type Bridge fitting DA-1 Common type AC-1 Single embedded bowl socket type DB-1 Baffle type AC-2 Double transverse embedded bowl socket type DC-1 Pedestal type AC-3 Double longitudinal embedded bowl socket type Stacking cone EA-1 Inter-bridge single type AC-4 Quadruple embedded bowl socket type EA-2 Inter-bridge double transverse type AD-1 Single raised socket type EA-3 Inter-bridge double longitudinal type AD-2 Double raised socket transverse type EB-1 Bottom single type AD-3 Double longitudinal raised socket type EB-2 Bottom double transverse type AE-1 Single convex square hole type EB-3 Bottom double longitudinal type AE-2 Double transverse convex square hole type EC-1 Hanger type EC-2 Double hanger type AE-3 Double longitudinal convex square hole type ED-1 Flangeless hanger type Leveling stacking cone FA-1 Single cone type Bottom stacking cone BA-1 Bottom single type FB-1 Double cone type FC-1 Double hole type 3.2 Main parameters of securing fitting See Table 2 for the main parameters of securing fitting.

Contents of GB/T 11577-2020

Foreword i 1 Scope 2 Normative references 3 Classification 4 Requirements 5 Test methods 6 Inspection rules 7 Marking 8 Packaging, storage and transport