This standard specifies the ordering content, dimensions, shape and allowable deviation, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of steel for steam turbine blades. This standard applies to hot-rolled and forged steel for steam turbine blades. GB/T 8732-2004 Steel for steam turbine blades GB/T8732-2004 Standard download decompression password: www.bzxz.net

This standard represents GT/TH732-10A steam turbine steel. Compared with GB8732-1988 steam turbine steel, the main changes are as follows: - Added the "Second Signature" in the first section. - Added 2lNiVuNlV grades, and cancelled the 12MV chemical composition specification and material energy index selection and adjustment specifications: - Supplemented the requirements for non-standard grades and variable frame: - Supplemented the requirements for the steel grade! The degree of treatment must be tested on the day of the test.
Standard promotion China Industry Association,
Standard National Medical Standardization Technical Committee: GBT 8732—2004
The drafting unit of this standard is Benxi Mintieji Co., Ltd. and Xier Institute of Metallurgical Industry. The main authors of this standard are Li Shengzheng, Ji Qihua, Liu Zeyan, Ling Feng and Liu Baoming. This standard was issued in 2008.
【Fan Chen
Steel for steam turbine blades
CB/T $732—2004
The standard stipulates "the order content, size, size and allowable deviation, technical requirements, test methods, inspection rules, installation, marking and transportation instructions for steam turbine blades.
This standard applies to hot-rolled and silver-plated steel for steam turbine blades. 2 Visual reference documents
The following documents are used as the terms of this standard. All subsequent amendments (.+driving announcements) or revised versions are not applicable to this standard. However, the service research conducted by this standard can be used to study whether these products can be used as new versions. The following documents are not available for reference. The latest version is not available. Used for wood and cloth. (1222-1981) Chemical analysis of finished products by new methods and screening methods GR/32, Chemical analysis methods for paper and composite materials - pyridine methyl ether gravimetric method for determination of the content of 6B5.1 Chemical analysis of copper and alloys - chromatographic method for determination of copper content by chromatographic method G/T225.13 Chemical analysis of gold by ammonium titanate titanate titanate titanate titanate content G/T223. [4 Information on the chemical analysis of total alloys GIVT228.1G Chemical analysis of steel and alloys - 4GH/- 225, 17
Methods for chemical analysis of steel and alloys
GB/ I 223. 18
GH/ 1 233. 1F
GB/ 223.23
G/7 233.25
Methods for chemical analysis of steel and alloys
Methods for chemical analysis of alloys
GR/T Ts.G
Methods for chemical analysis of iron and alloys
Chemical analysis of steel and alloys
CB-T 333. 40
GB/T 3S3. 42
Methods for chemical analysis of iron and alloys
Chemical analysis of steel and alloys
GB/T 225.er
Chemical analysis of steel and alloys
GB/T 7523.62
Chemical analysis of steel and alloys
GH/T 22,67
Chemical analysis of steel and alloys
CB/T 23.68
Min alloying agent
t/ 223, 6:
Min iron and alloy chemical treatment
Tongyou acid sodium separation - quantitative determination of weak products - three boiling furnace to take out the photometric determination of the river two matching wins the light optical determination of the lack of products
Yu Yixin time heavy team determination environment certificate
with the salt of true photometric determination of the group trace
harmonious separation - and Mao Ding method determination meter
ion exchange separation - oxygen full drunk 3 photometric determination of the initial determination of the sharp cross separation -About this part of the first sunlight method to determine the amount of the continent to determine the amount of silicon || tt || high removal technology to determine the amount of silicon || tt || 7 acid extraction light to determine the benefits || tt || commercial acid steel core method training product || tt || Tongyuan Jiadi·sub-medium base blue photometric method to measure the amount of tube type protection after combustion sand acid egg drop method is the sparse fish driving protection after combustion gas technology method US determination single calcium titanium modified alloy chemical analysis method || tt || protection repair let || tt || GB.T 23.7-
GB/T 2E3. 76
Methods for chemical analysis of metals and alloys-Determination of the presence of an atomic force microscope and the presence of a calcium ions in metals-Ga/T 8732-2004
/229Metal compression test-Notch impact test-Part 1: T251.1
Metal expansion joint test-Part 1: Test method 0?193Heat-tightness test of steel bars, dimensions and shape GR/T704
G:15:T D05-
GBT ISTS
GB/T2JO
GE/T 2975
GT4556
Hot-rolled steel size, shape, quantity and tolerance of round and square recording size, shape, weight and filling theory difference station structure low-power optical block rating drawing
Plastic flash acceptance, package, mark and quality certification - stock regulations steel product mechanical properties test sample location and trial preparation carbon poisoning forceps and medium and low-platform steel spark source original one emission light elimination analysis method (with gauge method) 71 creation of China non-metallic four-light nanostructured micro-determination method
/T1345-1V01 stainless steel copper - surface medical content metallographic measurement method GB:T 15?.:
GB:T 1676:
GRT17515
Test method for color grain of Han materials
Technical requirements for size, shape, weight and amount of steel products
G3/T17S16
Unified digital number of joint product brands
1/16394 Gold mesh dynamic quality determination method
3 The order content or receipt of this standard should include the following: 1) Product name
1) Brand:
c) Standard number:
Terms and conditions (model!
e) Annual quantity profit/or effective quantity:
() Add T for tracking!
Delivery status:
Items or indicators agreed upon by both parties and noted in the contract. If not specified, the supplier shall elect): Other compensation requirements proposed by the purchaser. If required, see 5.1. 4 Dimensions, shape and allowable deviations
The dimensions, shape and allowable deviations required by the purchaser shall be calculated in Table 2 of 703. 4.1
The dimensions, shape and allowable deviations of hot-rolled steel shall be in accordance with the specifications of the joint stock/T?31. 4. 3
The type, shape and tolerance of the steel shall comply with the provisions of BT-1. The size, appearance and light tolerance of the steel before forging shall comply with the provisions of GES761. 4
4.5 The type and tolerance of special-shaped steel shall comply with the specifications in Table 1. The type drawing shall be provided with the specification. The nominal width of special-shaped steel shall be GB/T32-20C4
. The minimum length of hot-rolled square steel shall not be less than 2=. The minimum length of forged steel and guide steel shall not be less than 5.5. The length shall be specified in the delivery package. The length of steel shall be in accordance with the specifications in Table 2. Table 2
Specifications of bending of profiles The curvature shall comply with the provisions of Table 3. When supplying according to the requirements, the requirements in Table 3 shall be noted in the specification. 5 Technical requirements 51 Brand and chemical composition The maximum length of the material shall be within the range of 100 mm. 5.1.1 The brand, chemical composition and chemical composition of the steel shall comply with the provisions of Table 4. Under the condition of meeting the requirements of the above-mentioned mechanical properties, the amount (or fraction) of t17Ni4Lu4Nb can reach 16.% 5.1.2 The chemical composition of the material shall comply with the provisions of Table 3 in (222194). The range of chemical composition or chemical composition in the table shall be determined by negotiation between the supply and demand parties. 5.2 Refining method
The H steel of turbine plate is treated by electric furnace and smelted and leveled. After negotiation with the supplier, other chemical smelting methods that can meet the requirements of this product can be used.
5.3 Change state
5.3.1 Copper goods are inspected for late fire. This temperature disaster: after negotiation between the supply and demand parties and noted in the contract, the goods can be delivered with double quenching and tempering. 5.3.2 This heat treatment mountain produces dust, oxidation, skin, acid or other polishing methods. 5.3.3 After annealing and temperature treatment, the strength of the steel shall conform to that in Table 5 or GR/T 8732-2004. 5.4 Mechanical properties Annealing degree: 1.-3 Condensation: 3.-3°C Cooling: 1.-9 Degree of heat: 88-330 Degree of quenching: 7 --933 cold-treated steel obtained by tempering in accordance with the specification
70--70
5-recovery cold-treated steel
sc.-recovery steel
6-.685 fast-tempering
GB/T 8732-2004
5.4.1 Heat treatment system and mechanical properties standards shall comply with the requirements of Table 7. After treatment in accordance with Table 3, the mechanical properties of Cr17N4Cu1Nb shall conform to the requirements of Table 5.4.2. The noble grade of Cr12.VoV steel shall be indicated in the specification, and the thermal conductivity of 0C17Ni4Cu4.N shall be determined according to the group effect. If necessary, it shall be noted in the contract when the group treatment is stopped. Table 6
Model processing
Welcome to the health
Return to the ancestral seat
R:-1M:
12w-Vnt
2riMNh
2Cr12NiMo1WIV
556:~J022 F5: --130
、Shuikong
556 -- 100+:: --
Fror--156 7x~.751
c(~.1n5dFkr...742
E5: --713
Extended 1.25
Age-specific
Extended strength
(N/mm)
University
China blood collection
Trial year hard world
187--229
21--248
27~246
2-11-23:
23/~31:
GH/T8732—2D04
2Crl2Me
VC7NiACuNS
JC:17NAC04Nb :
5.5 low power group
area: tempering:
126--c7c
1020·1050
surface ratio (.2)
determined non-specific elongation
(N/mn*)
590--785
solution treatment
25~1 oil
air cooling (lu holding
elongation
determined non-specific elongation strength
690.--952
755---B853
fracture sample section night
Not less than
900-·1056
Periodic treatment
Intermediate treatment
Sample temperature
2-1--28.5
Aging reversal
s45c--66h cooling
1~820℃c.5565-575
(14min consultation)
/ninr:
S3c.--1c2G
EOC1C3G
After the production
Not less than
60r'℃--613r 5 h cold
282- >02
2a1 -121
277--111
The material should be uniform and free of shrinkage holes, bubbles, impurities and lines. The center quality and plate quality should meet the standard.
5.6 Efficacy
One item
5.6. 1. Inspection of the grooves of the shaped specimen: the inspection results shall comply with the provisions of Table 11. 5.6.2 The initial length of the groove is 0.6mm. 5.6.3 When the distance between two grooves on the busbar is less than 2.1mm, they shall be counted as one. 5.6.4 It is not allowed to divide the grooves into two parts. The length of the thread passing through another step machine is in 5.6.5 special-shaped steel material threading effect table [2 standard; the total length of the thread
can be the number of thread strips
GB/T9732-2004
is the flow
step length
special-shaped material threading technical inspection is to make a plane under the inner point, parallel to the plane with inner points connected, the length of the special-shaped threading test is changed.
is not allowed to be greater than
the total number of thread strips
5.6.E The supplier guarantees that the thread is not tested when the bridge is closed. 5.76 Ferrite
Single forbidden maximum length
Details within the old meter
Effective total length
Weak material into 8-iron parts inspection, r11,12M0.2C12M:V8- system content industry annual market does not exceed 5% other more than the content of the stricter current acceptance shall not exceed 11%, 5.8 Non-metallic impurities
Finance should be replaced by some gold to the case system, security GBT a creation A method to reach: make adjustment inflammation (comprehensive chemical B inflammation (common chemical language), group acid salt)> class (spherical fire oxide) fine system and material system shall not After 2, various types of non-metal inclusions fine system and coarse system quality monitoring extreme difference and people exceed 5.5 level (A type impurities oxygen coarse system ratio after receiving the higher benefit level + B type impurities fine system and twist original ratio after obtaining the higher level one heart Zhang will be the canton system dead twist system after the request for the next level impurities and group system after the request for the higher level 5, grade electrical steel or central recording material fine system and age system is not allowed to exceed 2. 5.3 Grain Hui
Valve village inspection austenite product nuclear strength, the product resistance does not show = slow: and does not contain 1 level or higher grain: 5.10 Surface quality =||tt| | The surface of the material shall not have cracks, scars, clips and other defects. If there are any defects, they must be removed. The width of the profile should not be less than five times the required size. The measurement should be calculated from the actual size. The size of the steel should not exceed the minimum tolerance of half an inch. The steel larger than 60mm-113mm should not exceed the standard length. The hook should not exceed the standard size. Unless otherwise specified, individual small scratches, pitting, pressure separation and other defects that do not exceed the standard size are not allowed.
Special-shaped materials should be removed to ensure that the actual size does not exceed the standard size. Nominal size is not more than U.5EL: 5.1° Special requirements
According to each requirement, the following steel materials with the same market requirements are provided: new small;
o: strict test H,
hot top joint test:
mountain strict surface quality requirements:
other requirements.
6 Test method
6.1 Inspection items for finished materials, test method for number of samples, provisions for sampling parts, inspection of steel sections, number of samples, and requirements for the CA/T of the 13th standard. 8732—2004
6.2 Gluten inspection method
6.2.1 Sampling method
The sample is taken from the diseased material (or steel base) in a cross-leaved state. The sampling method shall be in accordance with the provisions of 3.1 of GB/713305-11: E.2.2 Etching method of pushing the sample
Developing agent: 1-2B, 9mL of hydrochloric acid 5mL: bottom time; ~
Service items
Chemical classification
Safety and delivery
According to the method
Impact test
Rat-end research
General and other out of bounds
Heart
Association network
Quality control standards
Concentrated quality
Selection policy
6.2.3 Determination method of deficiency rate and area content
GB:T 222,Ga T 253
GB/T335
GE/829
GB/T 231.1
GB/T 22:.GW- J979
GHT laSnbzxZ.net
GkT 354
GHT1571
Ruler, 1-minute ruler, detailed weight
The magnification of the microscope is n. The actual field of view diameter is 0.32mr. Sample part
SB/T222|| tt||Responsibility three, major adjustment plan
Responsibility two villages
Measurement of steel village
When the head is irresistible or the risk of control responsibility and support Xiecun
Hui Liangnengbiao
Ten total skin branches
Use the grid method, report the shadow method or the picture according to the method to swallow, and use the image method as the clock battle method 7 Inspection rules
7.1 Inspection and acceptance
The inspection of materials shall be carried out by the supplier’s technical supervision department. The purchaser has the right to apply for the heat treatment and age acceptance of this standard. 7.2 Group Batch Purchase Specifications || TT || Steel Control Batch Acceptance, each valve material with the same rotten: electric theft furnace) number, company one plus 1 Method, delivery condition, company and company will suppress the composition of the steel in the furnace
7.3 Sampling quantity and sampling position
The number of samples for steel inspection is the sampling position according to the table 3 Wei Ding. H
7. 4 Re-inspection and determination rules
The inspection and determination rules for steel materials shall be implemented in accordance with the provisions of CB/T175: Packaging, marking and quality certificate
The packaging label and quality certificate of the materials shall comply with the provisions of TU and GBT 8732-2004.
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