Some standard content:
ICS75.180.10
Registration number: 30741999
Petroleum and natural gas industry standard of the People's Republic of China SY/T5113-1999
Elevator links
Published on 1999-05-17
State Bureau of Petroleum and Chemical Industry
1999-12-01 implementation
SY/T 5113-1999
This standard is revised and compiled on the basis of SY5113--93 with reference to the relevant contents of APISpe8A (12th edition on June 1, 1992) and APISm8C (2nd edition on June 1, 1992). This standard partially revises the contents of SY5113--93, among which the maximum load level of the lifting ring is modified, and 675k1 is temporarily retained as the level during the product transition period. The connection dimensions of the lifting ring, the hook and the lower part have also been modified to make the main technical parameters of the lifting ring consistent with API Spec 8A and API SJE: 8C. In order to facilitate the conversion of the maximum load unit of the lifting ring, Appendix A is added. From the month of entry into force, this standard will replace SY5113--93 at the same time. Appendix A of this standard is a reminder appendix.
This standard was proposed and managed by the National Technical Committee for Standardization of Petroleum Drilling Equipment and Tools. Drafting unit of this standard: Baoji Petroleum Machinery Factory Main drafters of this standard Qi Zhihua Xu Anshi 1 Scope
Standard of the People's Republic of China for the petroleum and natural gas industry Elevator links
SY/T 5113-1999
Generation SY 5113-93
This standard specifies the type, basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of lifting links. This standard applies to lifting links used for lifting and lowering pipes in Shishan and natural gas drilling and well repair operations. 2 Reference standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T3077—1988 Technical conditions for alloy structural steel JB4730—94 Nondestructive testing of pressure vessels
SYT5112—[999 Specification for drilling and oil lifting equipment SY5304--87 General technical conditions for forgings for petroleum drilling and production machinery products (confirmed in 1998)
SY5305-87 General technical conditions for welded parts for petroleum drilling and production machinery products (confirmed in 1998)
SY5308—87 General technical conditions for painting for petroleum drilling and production machinery products (confirmed in 1998)
3 Types and basic parameters
3.1 Structural type
The lifting ring is divided into single-arm lifting ring and double-arm lifting ring.
Single-arm lifting ring (DH type) see Figure 1, double-arm lifting ring (SH type) see Figure 2. 3.2 Model representation method
a) Single-arm lifting ring
H××××
Maximum load, kN
The first letter of the Chinese pinyin of the word "ring"The th letter of the Chinese pinyin of the word "single"
Approved by the State Administration of Petroleum and Chemical Industry on May 17, 1999 and implemented on December 1, 1999
b) Double-arm lifting ring
XX × x
With ring upper ear
Beijing Ring Next Year
\-Maximum load, kV
SY/T 5113—1999
The first letter of the Chinese pinyin for “环”
The first letter of the Chinese pinyin for “双” Ring upper ear
Diaoyao lower ear
Figure 1 Single-arm lifting ring (UH type)
3.3 Maximum load*
The maximum load of the lifting ring shall comply with the following levels in SY5112 (kN): Figure 2 Double-arm lifting ring (SH type)
225,360,585, 900. 1350,2250,3 150, 4 500,5850,6750 3.4 Connection dimensions of lifting eye and hook, elevator 3.4,1 The connection dimensions and lengths of the connecting ears of single-arm lifting eye and hook, elevator shall conform to the requirements of Figure 1 and Table 1. Table 1 Connection dimensions of single-arm lifting eye and hook, elevator Upper ear of lifting eye and connecting ear of hook
TH675-
* The most common unit conversion history Appendix A (recommended technical records) IR
Lower ear of lifting eye and connecting ear of silk card
DH 1 350
DH 2 250
DH 3 150
DH 4 500
DH 5850)
DH: 6 750
SY/T 51131999
Table 1 (End)
Lifting ring upper ear and human hook connection ear
120.65 47.63
1) DH675 is only used for product transition, and is not recommended for new product design. 2) Length 1. is the recommended size.
3) No such product at present
Lifting ring lower ear and elevator connection ear
3.4.2 The connectable size and length of the double-arm lifting ring and the human hook and elevator connection should comply with the provisions of Figure 2 and Table 2. Table 2 Connection size of double-arm lifting ring and big hook and elevator Lifting ring upper ear and human hook connection ear
SH 360
SH 585
SH6750
SH yU0
SH 1 350
1) H675 is only used for product transition, and is not recommended for new product design. 2) Length L is the life-saving dimensionWww.bzxZ.net
4 Technical requirements
Lower ear of lifting ring and connecting ear of lifting card
4.1 Lifting ring shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. G
4.2 The raw materials of lifting ring shall comply with the provisions of GB/T3077. The mechanical properties of lifting ring after final heat treatment shall comply with the provisions of Table 3. 3
Material type
Tensile strengthab
Class I materials are used for single-arm lifting rings.
2 Class U materials are used for double-arm lifting rings.
SY/T 5113—1999
Table 3 Mechanical properties of lifting ring materials
Ultimate strength2
Elongation after fracture.
The cross-sectional shrinkage rate
3A value is the average value of the test, and the value of the test shall not be less than 20J. The test temperature is -20℃. The impact absorption energy Ak
4.3 The single-arm lifting ring is forged as a whole. The forging shall comply with the provisions of SY5304, and no white spots shall exist. The determination of its mechanical properties shall comply with the requirements of Class IV forgings.
4.4 The double-arm lifting ring is manufactured by forging and welding. The forging shall comply with the provisions of 4.3, the welding shall comply with the provisions of SY5305, the welding point shall be in the middle of the straight rod of the lifting ring, and the mechanical properties of the weld shall comply with the provisions of Table 3. 4.5 The weld of the double-arm lifting ring shall be ultrasonically inspected according to JB4730, and the defects allowed shall be of appropriate size. Its diameter should not be greater than 2mm
4.6 The surface of the lifting ring should be inspected by magnetic particle, and no cracks should be present.4.7 The surface defects of the lifting ring can be eliminated by grinding. There should be no more than three defects, and the flange should not be located on the same section. The grinding should be smooth. For the lifting ring with a maximum load of 1350kN or more, the grinding depth should not be greater than 3m; for the lifting ring with a maximum load of less than 1350kN, the grinding depth should not be greater than 2mm, and the grinding defect depth of the top section of the large and small rings should not be greater than 1mmc4.8 The single-arm lifting ring must be surface strengthened, and the surface compressive stress should not be less than 390MPa. 4.9 The lifting ring must be supplied in pairs. The length difference of the paired lifting rings should not be greater than 3mn. 4.10 After the lifting ring is tested with the maximum test load, the maximum residual deformation measured shall not exceed 0.2%, but the contact area with the test device is allowed to have a local shaking phenomenon. After the test, the surface of the lifting ring should be inspected by magnetic particle, and no cracks should be present. The maximum test load shall be determined by the following formula:
Pt = U.8pmax - ns
Where: p—maximum test load, but not less than 2pnax, kN: prmx——calculated maximum load, kN; ns is the service strength design safety factor (see Table 4). The relationship between the service strength design safety factor of the hanging ring and the maximum load shall comply with the provisions of Table 4. Table 4 Relationship between yield strength design safety factor and maximum load Maximum load Pmax
1350<.pmx-≤4500
Pmax45U0
Yield strength design safety factor n
0.75 (pau - 1350)
SY/T 5113--1999
4.11 After the product has passed the inspection, it should be cleaned and painted with red or yellow anti-rust paint. The quality of the paint should comply with the provisions of SY5308. 5 Test method
5.1 The contact arc radius and contact area of the tooling used for the product ring test should be basically the same as the actual working state of the lifting ring. 5.2 Newly designed and trial-produced lifting rings or old products with major modifications in structure, materials, and processes must undergo type tests. 5.3 In order to verify the design calculations for a series of products with the same design structure but different maximum loads, a product with an intermediate maximum load or close to the intermediate maximum load can be used for type tests, and the conclusions are applicable to all products in the series. 5.4 The lifting ring is loaded to 1.5 times the maximum load, and the load is maintained for 5 minutes. After unloading, the length after the suspension test is checked and measured. There shall be no residual deformation or cracks.
5.5 Affix resistance strain gauges to the calculated commercial stress position. 5.6 The lifting ring is loaded to the maximum test load, and the load is maintained for 5 minutes. After unloading, the lifting ring should meet the requirements of 4.10. The test should be graded as load, and the strain values at the maximum load and maximum test load and the corresponding residual strain values should be read respectively. 5.7 After unloading, non-destructive testing shall be carried out according to 4.6, and a non-destructive testing report shall be submitted. 6 Inspection rules
6.1 Type inspection
The lifting ring must be subjected to type inspection. Type inspection shall be carried out in accordance with the requirements of Chapter 5. 6.2 Factory inspection
The lifting ring shall be inspected piece by piece. Factory inspection shall be carried out in accordance with 5.4, and unqualified products shall not be shipped. 7 Marking, packaging, transportation, storage
7.1 On the flat surface of the large end of the lifting ring, print the mark in steel letters, including but not limited to the following: a) Product model;
b) Product number and pairing number;
c) Manufacturer's name or factory mark;
d) Factory date (year, month).
7.2 The lifting rings can be simply packed, but the paired lifting rings should be firmly packed together. And fasten the product certificate. 7.3 The paired lifting rings are not allowed to be separated during transportation and storage, and the lifting rings should not be deformed or scratched. 7.4 The lifting rings should be stored in a dry and ventilated place to prevent rust. 5
A1 The conversion of the maximum load unit of the lifting ring is shown in Table A1. SY/T 5113-—1999
Appendix A
(Suggestive Appendix)
Maximum load unit comparison table
Table A1 Maximum load unit conversion comparison table for lifting rings Maximum load of lifting rings
The maximum load in brackets is only used for product transition, and it is not recommended to use it in new product design
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