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纵达彩票注册The present situation and Prospect of the development of the standardization of the machinery industry

发布日期:2018/1/6
Development status 1. The development of the mechanical industry has rammed the foundation of the standardization work Machinery industry after 50 years of development, has formed a complete, with considerable size and a certain level of the industrial system, over the years for various sectors of the national economy provides a large amount of equipment, either economy or export and absorb the important index of employment ability, showed that the machinery industry has become a pillar industry in our country the economy, and indicates that China's machinery industry ranks among the world powers. 2. Standardization work has promoted the development of machinery industry (1) providing specifications for the production activities of the machinery industry; To build a bridge for the application of advanced manufacturing technology. It provides support for the adjustment of industrial structure in the machinery industry. (4) to create conditions for promoting trade; (5) providing means for international competition; For the resource conservation and comprehensive utilization of support; The standard 12603, of which 4307 national standards, industry standard 8296; The Standardization Technical Committee of the national total of 90, of which 76, branch of machinery industry 24; TC SC, the Secretariat to the international organization for Standardization: 3 the Secretariat of the TC (ISO/TC1/IEC/TC7, IEC/TC85), 1 SC (ISO/TC10/SC6) secretariat. 3. The main problems (1) the overall level is low and is not suitable for the needs of the revitalization of the machinery industry A, the standard system structure is not reasonable; B, the standard content is not reasonable; The content of C and standard technology is low. D, the standard updates are not in time. The low degree of internationalization is not conducive to the improvement of international competitiveness A, low ratio of international standards and advanced foreign standards; B, low quality with international standards and advanced foreign standards; C, the level of substantive participation in international standards is low. Low service ability, reducing the effectiveness of standardization work A, the standardized service means are backward, the form is single, the degree of information is low, and the efficiency is not high. B, standardized services remain in the service stage of standard text, data and literature. Development environment 1. Standardization work has been included in the revitalization of the machinery industry agenda "On a number of opinions" to accelerate the revitalization of the equipment manufacturing industry, to give full play to the role of standardization in the revitalization of the equipment manufacturing industry. To improve the national standards, industry standards and enterprise standards level. To improve China's equipment manufacturing industry standard system, creating conditions for our products to participate in international competition. The 2. standard has become the technical basis for improving the ability of independent innovation 3. optimizing the industrial structure of the machinery industry needs a high standard 4. developing a resource-saving and environment-friendly machinery industry to make clear requirements for standardization work 5. economic globalization brings standardization to the forefront of international competition 6. strengthening standardized services is an urgent need to improve the effectiveness of standardization Development goals 1, guiding ideology Guided by Deng Xiaoping theory and the important thought of "Three Represents", we must carry out the policy of Scientific Outlook on Development in the guidance of "government guidance, market promotion, enterprises and service industries", and strive to improve the standard level. Speed up the standard update. We should strengthen the standardized service, give full play to the basic role of standardization in the revitalization of the machinery industry, and enhance the international competitiveness of the machinery industry. To make great efforts to revitalize the machinery industry and make contributions to the new road of industrialization. 2. Work objectives In 2010, the goal of standardization in machinery industry is to set up a standard system for machinery industry which is consistent with the international standards, with a prominent structure and reasonable structure. The overall level of the standard is obviously improved. 3, the main sign (1) in the mechanical industry standard system, the digitization, networking and intellectualization product standard, industrial equipment energy efficiency standard, energy consumption product energy consumption limit standard, sewage recycling standard, material saving standard and safety standard proportion increased significantly. (2) the proportion of the mechanical industry standards containing independent innovation and transformation of scientific and technological achievements has been greatly improved. (3) the standard age of the major machinery industry is controlled within 5 years. Establish a standardized service system for machinery industry, which is effectively implemented and basically meet the rapid development needs of the machinery industry. The conversion rate of international standards in major industries is over 70%, and the standards of security, environment and international trade are gradually synchronized with the formulation of international standards. The fight to take TC or SC Secretariat 2 international standardization organization, put forward 15 international standards work projects, participate in 60 international standards, and gradually improve the leading position in international standard setting. The formation of market-oriented, business oriented, Standardization Technical Committee for the organization of standardization system, basically built on information technology, according to market mechanism standardization service network, standardized service ability is enhanced. Development focus 1, key tasks Improve the market adaptability of the machinery industry standard A. focuses on improving the independent innovation ability of the machinery industry and strengthening the formulation of the standards for the transformation of independent innovation results. B. focus on the optimization of machinery industrial products and industrial structure, increase high-tech and high value-added products urgently to develop key technology standards efforts; C. changes the market demand and updates the standard in time D. improves the quality, grade and added value of the export products of the machinery industry, and improves the technical volume and level of the standard. E. revolves around the establishment of China's technical trade measures system, and speeds up the speed of the revision of the technical regulations and the standard of qualified assessment. F. focuses on developing resource-saving and environment-friendly machinery industry, strengthening energy saving, water saving, material saving products and environmental protection equipment standardization. G. set up and perfected the safety standard system for the machinery industry around the safety of production. Improve the international competitiveness of the machinery industry standard A. actively and effectively adopts international standards and advanced foreign standards to achieve integration with international standards, break through and overcome barriers, and create conditions for machinery industry to participate in international competition. B. actively participates in the formulation of international standards, which makes the international standards more reflecting the technical requirements and interests of China's machinery industry. C. actively promotes the development of machinery industry's professional field with export advantage, and has independent intellectual property rights and industrialization standards, making it an important part of international standards, ensuring the advantage in international competition. Improve the effectiveness of the standardization of the machinery industry A complete, efficient, accurate and timely standardized information service and technology management platform for machinery industry is established, which improves the efficiency of standardized management, strengthens the publication and distribution of standards, improves the quality of standard training, and actively promotes the implementation of standards. 2. key areas (1) agricultural machinery industry: tractors, ploughing and planting and fertilization machinery, water-saving irrigation equipment, plant protection machinery, facility agriculture, agricultural and sideline products deep processing complete sets of equipment, harvesting and storage and drying machinery, animal husbandry machinery, agricultural transport machinery. Internal combustion engine industry: medium and small power internal combustion engine, small gasoline engine, oil pump oil nozzle. (3) construction machinery industry: earthmoving machinery, pavement construction and maintenance machinery, intelligent construction machinery, tunnel and underground excavation machinery, drilling and production machinery, drilling machinery and construction machinery parts. Instrument and meter industry: industrial automation, instrumentation and control system, electrical instruments, scientific instruments, intelligent geodesy, sensors and functional materials, laser technology and products. Cultural office equipment industry: photography, photocopying, film machinery. The general petrochemical industry: pump, blower, compressor, valve, vacuum and application of filtration and separation equipment, machinery, printing machinery, plastic machinery, refrigeration and air conditioning equipment, environmental protection machinery, packaging machinery. The heavy mining industry, metallurgical equipment, mining machinery, material handling machinery, forging. The machine tool industry: metal cutting machine, special machine tools, woodworking machines and tools, forging machinery, casting machinery, cutting tools, measuring tools, abrasives, industrial machinery and electrical system. 9 electrical appliance industry: large hydropower units, supercritical coal-fired power plant clean coal combustion power generation equipment, large air-cooled turbine, nuclear power equipment, gas - steam combined cycle power generation equipment, fuel cells, renewable power generation equipment, power transmission equipment, AC million + 500kV + 800kV, high voltage DC power transmission equipment. High voltage DC power transmission equipment, electrical materials, power transmission equipment system based Development measures 1, cultivating and developing the standardized market (1) the standardization of propaganda; To establish the main position of the enterprise; (3) play the role of the industry association; Strengthening the construction of the Standardization Technical Committee. 2. promoting the standardization of reform (1) establishing the standard innovation mechanism; The establishment of a standard revised market mechanism; (3) to establish a substantive participation in the international standardization work mechanism; Establish a standardized diversified investment mechanism. 3. improve the standard of service (1) strengthening the construction of standardized service information system; (2) to expand the content of standardized service objects; Promote the implementation of the standard. 4. train a team of high quality standardization

Introduction of the related characteristics of high quality seamless steel pipe

发布日期:2018/1/6
The high quality seamless steel pipe is rolled with solid tube billet after perforation. Production method of high quality seamless tube According to the different methods of production, it can be divided into hot rolling tube, cold rolling tube, cold drawing tube, extruding tube and so on. Hot rolled seamless tubes are generally produced on an automatic pipe mill. After inspecting and removing the surface defects, the solid tube billet is cut into the required length, then centering on the end face of the perforated end of the tube blank, then heated to the heating furnace and perforated on the perforator. When the perforation is rotating and advancing at the same time, the inner cavity of the tube is gradually formed under the action of the roll and the head, which is called the capillary. Sent to the automatic tube rolling mill on rolling. Finally, the whole wall is all wall thick, the diameter is fixed by the sizing machine, and the specification is reached. It is a more advanced method to produce hot rolled seamless steel pipe by continuous rolling mill. In order to obtain smaller size and better quality of seamless tube, cold rolling, cold drawing method must be used or combined. Cold rolling is usually carried out on a two roll mill, and the steel pipe is rolled in a circular hole consisting of a variable cross section slot and a moving cone. Cold drawing is usually carried out on a single chain or double chain cold drawing machine with 0.5 to 100T. The extruded tube is placed inside the closed extruded cylinder with the extrusion method. The perforated rod and the extruding rod are moving together to squeeze the extruded parts from the smaller die holes. This method can produce steel pipe with smaller diameter. Use of high quality seamless tube High quality seamless tube is widely used. The general purpose seamless pipe is produced by ordinary carbon structural steel, low alloy structural steel or alloy structural steel. The output is the largest, and is mainly used for conveying fluid pipes or structural parts. Three types of supply according to different uses: A, supply according to chemical composition and mechanical properties; B, supply according to mechanical properties; C, supply by water pressure test. The water pressure test should also be carried out for the steel pipe supplied by class A and B, if used to bear the pressure of the liquid. The high quality seamless tubes for special purpose are seamless tube for boiler, seamless pipe for geological use and seamless pipe for oil. type The high quality seamless tube can be divided into hot rolling tube, cold rolling tube, cold drawing tube and extruding tube according to different production methods. According to the shape, there are circular tubes and special-shaped tubes. In addition to the square tube and the rectangular tube, there are elliptical tubes, semicircular tubes, triangular tubes, hexagonal tubes, convex tube, plum blossom tube and so on. According to the different material, it is divided into ordinary carbon structure tube, low alloy structure tube, high quality carbon structure tube, alloy structure tube, stainless steel tube and so on. According to special purpose, there are boiler tube, geological tube, oil pipe and so on. Quality and appearance quality of high quality seamless tube Seamless tube according to GB/T8162-87 regulations Specifications: the outer diameter of the hot rolled tube is 32 ~ 630mm. The thickness of the wall is 2.5 ~ 75mm. The outer diameter of the cold rolling (Leng Ba) tube is 5 ~ 200mm. The thickness of the wall is 2.5 ~ 12mm. Appearance quality: there are no cracks, folding, rolling, separation, hair lines and scar defects on the inner and outer surfaces of the steel pipe. These defects should be completely removed, and the wall thickness and outer diameter should not be exceeded by the negative deviation. The ends of the steel pipe should be cut into the right angle and the burrs are removed. Steel tube wall thickness greater than 20mm allows cutting and thermal cutting. The agreement between supply and demand can not be cut off. The surface quality of the cold - drawn or cold - rolled precision seamless steel pipe is referred to as GB3639-83. Chemical composition test of high quality seamless tube The chemical composition of domestic seamless pipes, such as 10, 15, 20, 25, 30, 35, 40, 45 and 50 steel, according to chemical composition and mechanical properties, shall comply with the requirements of GB/T699-88. The imported seamless tube is inspected according to the relevant standards stipulated in the contract. The chemical composition of 09MnV, 16Mn and 15MnV steel should be in accordance with the regulations of GB1591-79. The specific analysis methods refer to the relevant parts of the GB223-84 "steel and alloy chemical analysis methods". The analysis deviations refer to the deviation of the chemical composition of the GB222-84 steel for chemical analysis and the chemical composition of the finished products. Physical performance test of high quality seamless tube Made of seamless steel pipe according to the performance of the organization, the ordinary carbon steel is made of class GB/T700-88 steel (but must ensure that sulfur content is no more than 0.050% and phosphorus content is no more than 0.045%), and its mechanical properties should conform to the values specified in the GB8162-87 table. The domestic seamless pipe supplied by water pressure test must guarantee the water pressure test as stipulated in the standard. The physical performance test of the imported seamless pipe is carried out according to the relevant standards stipulated in the contract. Main import and export of high quality seamless tube Generally, the import of seamless tube is very large. The main importing countries are Germany and Japan. European countries such as Romania, Russia, Switzerland, France, Spain, Czech, Yugoslavia, Hungary and other countries have imported. There are also a small number of countries imported from Argentina, Mexico and other countries in South America. According to the different requirements of the units in China, there are more than 100 seamless tube specifications. The common specifications are 15922mm, 1595mm and 15918mm. 114.38mm, 114.310mm, 114.313mm. The length is usually 5 to 8m or 4 to 7m. Is the main structure of hot rolled carbon steel to ST35.ST45 and ST65. The smallest diameter of the import specification is 305mm, and the largest 47813mm. . From France and Spain, a small number of smaller and thin wall tubes, such as 183mm, 223mm, 26.93mm, etc., were imported from France and Spain. Implementation of the general rules mannasiman steel pipe in germany. The seamless tubes imported from Hungary and Japan often refer to DIN2448 and DIN1629. In the case of import claims, the quality problems of imported seamless pipe include: chemical composition is not qualified, splitting test is flat, tensile strength is low, serious rust and pits are found.

Stainless steel pipe standard

发布日期:2018/1/6
Stainless steel pipe standard GB2270-80 stainless steel seamless steel pipe Stainless steel seamless steel pipe for GB/T14976-94 fluid delivery Stainless steel seamless steel pipe for GB/T14975-94 structure GB13296-91 stainless steel seamless steel pipe for boiler and heat exchanger (GJB2608-96) (YB676-73) thick wall seamless steel pipe for structural steel for aviation (GJB2296-95) (YB678-71) stainless steel seamless steel pipe for aeronautical use (YB/T679-97) (YB679-71) 18A hollow rivet thin wall seamless steel pipe for aviation (GJB2609-96) (YB680-71) thin-walled seamless steel pipe for aeronautical structure (YB/T681-97) (YB681-71) 20A thin-walled seamless steel pipe for aviation catheter GB3090-82 stainless steel tube with small diameter Seamless steel pipe for GB5310-95 high pressure boiler GB3087-82 low medium pressure seamless steel pipe GB3089-92 stainless steel tube with acid resistant and acid pole thin wall GB9948-88 seamless steel pipe of petroleum cracking ASTM A213 boiler, heat exchanger Ferritic and austenitic alloy steel seamless steel pipe ASTM A269 general use of austenitic stainless steel seamless steel pipe and welded steel pipe ASTM A312 austenitic stainless steel welded pipe welded pipe for seamless steel pipe General requirements for ASTM A450 carbon steel, ferrite and austenitic alloy steel pipe ASTM A530 General requirements for iron and alloy steels for special purposes ASTM A789 generally requires carbonaceous austenitic stainless steel seamless steel pipe and welded steel pipe JIS G3456-88 stainless steel pipe for mechanical structure JIS G3448-88 stainless steel pipe for ordinary pipe Stainless steel pipe for JIS G3459-88 pipeline JIS G3463-88 boiler and heat exchanger stainless steel pipe . Q/HYAD 101-91 seamless long steel pipe for chemical use (0Cr18NI11T) Q/HYAD 103-91 00Cr18Ni5MO3Si2 duplex stainless steel seamless steel pipe

The import and export of mechanical parts in China will be affected by the adjustment of policy

发布日期:2018/1/6
In recent years, China's machinery basis of foreign trade showed a trend of rapid development, export volume and export share of bearings, chains, fasteners and other products of the year 2007, China's machine parts import and export products for the first time to achieve a surplus, but we cannot fail to notice the fact that in China the basic product exports are mainly low value-added products, and some for the host and the key foundation of major equipment supporting member is dependent on imports, product structure adjustment and industry machinery basis of the road is still long. In recent years, our government has introduced a series of policies to improve and optimize the structure of import and export products. What are the effects of these policies on the import and export of mechanical basic products? This special issue on the import and export of China's machinery industry experts Mr. Zheng Guowei's article, his influence on import and export status of the product, basic pieces of machinery related to import and export policy are analyzed, and enterprises should take measures to put forward their views and suggestions. In recent years, the Chinese government issued a series of policies on import and export, to improve and optimize the export product mix, improve the quality of export products, increase the technological content and value-added export products, export order consolidation, to achieve a fundamental change in export growth, to improve the ability of international competition. At the same time, in order to reduce the surplus of international trade and promote industrial upgrading, we have issued policies to encourage advanced technology and equipment import. The main existing policies on the import and export of mechanical basic parts are as follows: 1. export tax rebate policy export tax rebates, refers to indirect taxes levied in the country has returned (mainly VAT), the purpose is to enable the export of goods to non domestic indirect taxes enter the international market price, to avoid domestic tax levied duplication of cross-border movement of goods, in order to promote the development of International trade. This approach, in line with the WTO rules, embodies the WTO's principles of non discrimination and fair trade, and has formed an international practice. Therefore, it is not a preferential policy adopted by individual countries, but not a subsidy. Approved by the State Council, in June 19, 2007, the Ministry of Finance and the State Administration of Taxation, after the national development and Reform Commission, the Ministry of Commerce and the General Administration of customs, issued the notice on lowering the export tax rebate rate of some commodities with the fiscal tax [2007] 90, which has been implemented since July 1, 2007. The main purpose of this adjustment is to further control the excessive growth of foreign trade export, ease the outstanding contradictions brought by the overbalance of our foreign trade, improve the structure of export commodities and curb the export of high energy consumption, high pollution and resource products. . Machine components industry tariff reduction products are of 36 kinds, mainly mechanical parts, metal chain, including motorcycle roller chain, bicycle roller chain, other articulated chain, anti-skid chain, chain, chain link on the word welding and various chain parts; various steel standard fasteners, including screws, nuts and threaded products; all kinds of springs, including automotive, railway vehicle spring, are reduced from 13% to 5%; another portable hydraulic power tools (including chain saws) and parts from 17% to 9%. At present, the export rebate rate of the mechanical foundation parts is three, except for the above 13% products. The copper and aluminum standard fasteners and springs are 13%, the hydraulic components and devices and pneumatic components and devices are 17%, and the moulds, bearings, seals, oil pressure and pneumatic transmission valves are 13%.

纵达彩票注册Comparison table of stainless steel grades at home and abroad

发布日期:2008/9/19
知识宝典:国内外不锈钢牌号对照表     序号 种类 中国 前苏联 德国 法国 日本 美国 英国 国际标准 瑞典 (GB) (TOCT) (DIN) (NF) (JIS) AISI/ ASTM UNS SAE (BS) (ISO) (SS14) 1 奥 1Cr17Mn6Ni5N 12X17T9AH4 — — SUS201 201 S20100 30201 — A-2 — 2   1Cr18Mn8Ni5N 12X17T9AH4 X8CrMnNi189 Z15CNM19.08 SUS202 202 S20200 30202 284S16 A-3 2357 3   1Cr18Mn10Ni5Mo3N — — — — — — — — — — 4   2Cr13Mn9Ni4 20X13H4T9 — — — — — — — — — 5 氏 1Cr17Ni7 09X17H7Ю X12CrNi17.7 Z12CN17.07 SUS301 301 S30100 30301 301S21 14 — 6   1Cr17Ni8 — X12CrNi17.7 — SUS301J1 — — — — — — 7   1Cr18Ni9 12X18H9 X12CrNi18.8 Z10CN18.09 SUS302 302 S30200 30302 302S25 12 2331 8   Y1Cr18Ni9 — X12CrNiS18.8 Z10CNF18.09 SUS303 303 S30300 30303 303S21 17 2346 9 体 Y1Cr18Ni9Se 12X18H10E — — SUS303Se 303Se S30323 30303Se 303S41 17 — 10   1Cr18Ni9Si3 — X12CrNiSi18.8 — SUS302B 302B S30215 30302B — — — 11   0Cr18Ni9 08X18H10 X5CrNi18.9 Z6CN18.09 SUS304 304 S30400 30304 304S15 11 2332     型 2333 12   00Cr18Ni10 03X18H11 X2CrNi18.9 Z2CN18.09 SUS304L 304L S30403 30304L 304S12 10 — 13   0Cr19Ni9N — — — SUS404N1 304N S30451 — — — — 14   0Cr19Ni10NbN — X5CrNiNb18.9 — SUS304N2 XM21 S30452 — — — — 15 钢 00Cr18Ni10N — X2CrNiN18.10 Z2CN18.10 SUS304LN 304LN S30453 — 304S62 — 2371       (Az) 16   1Cr18Ni12 12X18H12T X5CrNi19.11 Z8CN18.12 SUS305 305 S30500 30305 305S19 13 — 17   0Cr18Ni12 8X18H12T、06X18H11 X5CrNi19.11 Z8CN18.12 — — — — — — — 18   0Cr23Ni13 — X7CrNi23.14 — SUS309S 309S S30908 30309S — — — 19   0Cr25Ni20 — — — SUS310S 310S S31008 30310S — — 2361 20   0Cr17Ni12Mo2 08X17H13M2T X5CrNiMo18.10 Z6CND17.12 SUS316 316 S31600 30316 316S16 20,20a 2347 21   1Cr17Ni12Mo2 10X17H13M2T — — — — — — — — — 22   0Cr18Ni12Mo2Ti 08X17H13M2T X10CrNiMoTi18.10 Z6CNDT17.12 — — — — 320S31 — 2343     320S17 -2350 23   1Cr18Ni12Mo2Ti 10X17H13M2T X10CrNiMoTi18.10 Z8CNDT17.12 — — — — — — 2350 24   00Cr17Ni14Mo2 03X17H14M2 X2CrNiMo18.10 Z2CND17.12 SUS316L 316L S31603 30316L 316S12 19,19a 2353 25   0Cr17Ni12Mo2N — — — SUS316N 316N S31651 — — — — 26   00Cr17Ni13Mo2N — X2CrNiMoN18.12 Z2CND17.12 SUS316LN 316LN S31653 — 316S61 — 2375   (AZ) 27   0Cr18Ni12Mo2Cu2 — — — SUS316J1 — — — — — — 28   00Cr18Ni14Mo2Cu2 — — — SUS316J11 — — — — — — 29   0Cr18Ni12Mo3Ti 08X17H15M3T — Z6CNDT17.13 — — — — — — — 30   1Cr18Ni12Mo3Ti 10X17H13M3T X10CrNiMoTi18.12 Z8CNDT17.13B — — — — — — — 31   0Cr19Ni13Mo3 08X17H15M3T X5CrNiMo17.13 — SUS317 317 S31700 30317 317S16 25 — 32   00Cr19Ni13Mo3 03X16H15M3 X2CrNiMo18.16 Z2CND19.15 SUS317L 317L S31703 — 317S12 24 2367 33   0Cr18Ni16Mo5 — — — SUS317J1 — — — — — — 34   1Cr18Ni9Ti 12X18H9T X12CrNiTi18.9 Z10CNT18.10 SUS321 321 S32100 30321 321S20 — 2337 35   0Cr18Ni10Ti 08X18H10T X10CrNiTi18.9 Z6CNT18.11 SUS321 321 S32100 30321 321S12 15 — 36   1Cr18Ni11Ti 12X18H10T — — — — — — 321S20 — — 37   0Cr18Ni11Nb 08X18H12B X10CrNiNb18.9 Z6CNNb18.10 SUS347 347 S34700 30347 347S17 16 2338 38   1Cr18Ni11Nb 12X18H12B — — — — — — — — — 39   0Cr18Ni9Cu3 — — Z6CNU18.10 SUSXM7 XM7 S30430 — — D32 — 40   0Cr18Ni13Si4 — — — SUSXM15J1 XM15 S38100 — — — — 41 奥氏体∣铁素体型钢 0Cr26Ni5Mo2 08X21H6M2T X8CrNiMo275 — SUS329J1 329 S32900 — — — 2324 42 1Cr18Ni11Si4AlTi 15X18H12C4TЮ — — — — — — — — — 43 1Cr21Ni5Ti 12X21H5T — — — — — — — — — 44 00Cr18Ni5Mo3Si2 — — — — — — — — — — 45 00Cr24Ni6Mo3N — — — — — — — — — — 46 铁 0Cr13A1 1X12CЮ X7CrAl13 Z6CA13 SUS405 405 S40500 51405 405S17 2 2302 47   00Cr12 — — — SUS410L — — — — — — 48 素 1Cr15 — — — SUS429 429 S42900 51429 — — — 49   00Cr17 — — — SUS430LX — — — — — — 50 体 1Cr17 12X7 X8Cr17 Z8C17 SUS430 430 S43000 51430 430S15 8 2320 51   Y1Cr17 — X12CrMoS17 Z10CF17 SUS430F 430F S43020 51430F — 8a 2383 52 型 1Cr17Mo — X6CrMo17 Z8CD17.01 SUS434 434 S43400 51434 434S17 9c 2325 53   00Cr17Mo — — — SUS436L — — — — — — 54 钢 00Cr18Mo2 — — — SUS444 18Cr2Mo — — — — — 55   1Cr25Ti 15X25T X8Cr28 — — 446 S44600 51446 — — 2322 56   00Cr27Mo — — Z01CD26.1 SUSXM27 XM27 S44625 — — — — 57   00Cr30Mo2 — — — SUS447J1 — S44700 — — — — 58 马 1Cr12 — — — SUS403 403 S40300 51403 403S17 — 2301 59 氏 0Cr13 08X13 X7Cr13、X7Cr14 Z6C13 SUS410S 410S S41008 — 430S17 1 — 60 体 1Cr13 12X13 X10Cr13 Z12C13 SUS410 410 S41000 51410 410S21 3 2302 61 型 1Cr13Mo — X15CrMo13 — SUS410J1 — — — — — — 62 钢 Y1Cr13 — X12CrS13 Z12CF13 SUS416 416 S41600 51416 416S21 7 2380 63   2Cr13 20X13 X20Cr13 Z20C13 SUS420J1 420 S42000 51420 420S37 4  
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