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SY/T 10051.2-2005Rolled shapes with improved notch toughness (English PDF)

改良缺口韧性的轧制型钢规范

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Issued by

National Energy Administration

Level / Type

National · Recommended

Issue date

July 26, 2005

Implementation date

November 1, 2005

Scope

SY/T 10051.2-2005 is the English-translated version of 改良缺口韧性的轧制型钢规范.

SY/T 10051.2-2005 is the Chinese standard "Rolled shapes with improved notch toughness". This standard specifies the minimum yield strength of 345MPa (50ksi), applicable to offshore structures rolled steel (wide flange beam, angle, etc.).

According to API RP 2A described in 8. 1. 3 critical fracture class A, B, and C grade of steel more general use, the lowest grade of C-level applications. For key positions, according to 8.

14, after consultation can use AAZ grade steel. Issued on 2005-07-26, in force from 2005-11-01.

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Document preview — SY/T 10051.2-2005

National Standard of the People's Republic of China

ICS: 47.020.01
Classification: U17

[Preview only]
1 Scope
2 Normative References
3 Terms and Definitions
4 General Principles and Requirements
5 Design Conditions
5.1 Environmental Conditions
5.2 Design Cases
5.3 Vessel Parameters
6 Design Criteria
6.1 General Requirements
6.2 Design Life
6.3 SPM Location and Spatial Requirements
7 Design Requirements
7.1 Turret System
7.2 Mooring System
7.3 Mooring Foundation
7.4 Dynamic Risers and Umbilicals
8 Construction and Inspection
8.2 Construction Materials
8.3 Welding
8.4 Quality Control and Inspection
9 Offshore Installation
9.2 Installation of Mooring Foundation
9.3 Laying of Mooring Lines
9.4 Hook-up of Mooring Lines

1 Foreword

SY/T 10051.2-2005 was issued by National Energy Administration on 26 July 2005 and has been in force since 1 November 2005.

It is one of 2 parts of the SY/T 10051 series.

The SY/T prefix marks a recommended standard. It is not law in itself: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it.

2 Scope Preview

This standard specifies the minimum yield strength of 345MPa (50ksi), applicable to offshore structures rolled steel (wide flange beam, angle, etc.). According to API RP 2A described in 8. 1. 3 critical fracture class A, B, and C grade of steel more general use, the lowest grade of C-level applications. For key positions, according to 8. 14, after consultation can use AAZ grade steel.

SY/T 10051.2-2005 falls under ICS 47.020.01, in the field of shipbuilding and marine structures.

This catalogue holds 2 other SY/T standards in that field.

In this catalogue, SY/T standards carry edition years from 1973 to 2025.

3 Where this standard sits

SY/T 10051.2-2005 is classified under ICS 47.020.01, in the field of shipbuilding and marine structures.

It is one part of the SY/T 10051 series, of which this catalogue holds 2 parts.

4 About this standard

Sector: Oil & Gas Industry Standard (Recommended)

Issued by: National Energy Administration

English translation: about 9 pages (approximate)

Chinese original: about 13,139 characters

5 Related standards

Other parts of this standard:

SY/T 10051.1-2004 — Specification for carbon manganese steel plate with improved toughness for offshore structure

Standards on related subjects:

GB/T 37419-2019 — Small craft - Electrical/electronic control systems for steering, shift and throttle

GB/T 37348-2019 — Design guidelines for deck loading plan of self-elevating drilling units

GB/T 37335-2019 — Design guidelines for structural full penetration weld of self-elevating drilling units

6 Classification and status

International classification (ICS): 47.020.01

Chinese Standard Classification (CCS): U 17

Prefix SY/T: recommended standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 9 pages — is available in the English PDF.

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