Specification00867 CT20

SCOPE OF WORK & QA PLAN FOR WASHERS OF PJ-10 ARTICLE Scope of work The vendor shall manufacture and supply washers specified in this document It will be the responsibility of the vendor to design and manufacture the required Press Tools & Dies to realize the final product (50,000 No.) including the surface protection operations and inspection The vendor should carryout complete manufacturing of the required tooling including any inspection/ checking media All washers shall be manufactured by punching and blanking method only REFERENCED DOCUMENTS Designation GOST 18123-82 OST 92-0748-72 GOST 9.303-84 GOST 9.306-85 GOST 9.301-86 GOST 9.302-88 GOST 1759.0-87 GOST 1759.1-82 GOST 1759.2-82 GOST 1759.3-82 GOST 1050-88 GOST 380-94 GOST 4543-71 GOST 5632-72 GOST 4784-97 GOST 2283-79 GOST 14959-79 GOST 17769-83 SAE AMS 2759 Name Washers General technical specifications Fastening parts Technical requirements ЕСЗКС Metallic and non-metallic inorganic coatings General requirements General requirements for selection ЕСЗКС Metallic and non-metallic inorganic coatings Designation ЕСЗКС Metallic and nonmetallic inorganic coatings General requirements ЕСЗКС Metallic and nonmetallic inorganic coatings Acceptance rules and test methods Bolts, screws, studs and nuts Technical specifications Bolts, screws, studs, nuts and screw nails Tolerance Test methods for dimensions and deviation forms and surface position Bolts, screws and studs Defects on surface and controlling methods Nuts Surface defects and methods for checking Carbonised steels (08, 08кп, 10б, 10кп, 15, 20, 35 and 35) Carbonised steels (Ст3, Ст3кп) Alloyed steels (40Х, 30ХГСА) Corrosion resistive steels 12Х18Н10Т Aluminum Alloys (АМг5, Д1 , АД1) Cold rolled strip of instrumental (tool) & spring steel technical specifications Spring carbon and alloyed steels technical specifications Acceptance criteria Hydrogen de-embrittlement Page - - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE QA Plan This is applicable for manufacturing of Washers made out of materials Carbonized Steels, Corrosion resistance Steels, Spring Carbon Alloy Steels & Al alloys These are categorized under the following designation, GOST 13463-77, GOST 13464-77, GOST 13465-77, GOST 11872-89, GOST 11648-75, GOST 10450-78, GOST 10906-78, GOST 11371-78, GOST 6402-70, GOST 6958-75, OST 11508-74 & OST 11782-78 1.0 TECHNICAL REQUIREMENTS 1.1 Precision Press Tools & Dies should be used to manufacture the washers specified in this QA Plan 1.2 Surface of the washers should be without cracks, blisters, dents, sharp edges, flashes, rusts etc 1.3 Anti-corrosion protection with coating or chemical passivation to be carried out as per the designations in the washer 2.0 CONVENTIONAL DESIGNATION OF GOST WASHERS 2.1 Conventional designation of the material grade as per table -1 Table-1 Type Grade Carbonised steels 08кп C20 Corrosion resistive steels 12X18H10T Spring Carbon& Steel Alloy steels Alloy 65Г Conventional designation of grade (group) 01 04 21 Material grade is mentioned (65Г) 30XГСА 11 Aluminum alloys АМг5 31 Aluminum alloys Д1 35 Aluminum alloys АД1 37 Page - - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE 2.2 Conventional designation of the type of coating as per table -2 Table-2 Coating Type Coating designation Zinc chromatisation 01 Cadmium chromatisation 02 Anodic oxidation Oxides from acid solvents(Chemical passivation) 10 2.3 11 Coating colour Greenish-yellow with iridescent shades Golden-yellow with iridescent shades Light gray to dark gray - For example A10x2,5.02CT3.029 GOST 11371-78 1) A stands for Accuracy class, 2) 10 stands for Diameter of the thread of fixing part, 3) 2,5 Stands for Thickness of washer (if not mentioned as per the given standard), 4) 02 Stands for conventional designation of grade (group) of material, 5) CT3 Stands for Material grade, 6) 02 Stands for conventional designation of coating type, 7) Stands for coating thickness in microns, 8) GOST 11371-78 stands for conventional designation of a particular type or design 3.0 GENERAL TOLERANCE & ACCURACY CLASS 3.1 Field of tolerances and limited deviations of dimensions, tolerance forms and positioning of surfaces of washers should correspond to Table 3.2 Parameter Ra of roughness of support surfaces of accuracy class A - not more than 3.2 microns 3.3 Instead of chamfers, rounded radius equal to ‘e’ is allowed 3.4 Tolerance for perpendicularity of cylindrical surfaces to support surfaces of plane rounded washer with thickness above mm - not more than 6° for Accuracy class C and not more than 3° for Accuracy class A; connecting square washer - not more than 5° Page - - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE 3.5 Bosses of locking washers should not break and have the cracks during its double bend in and bend out for 90° Angle Table-3 Name of size and type tolerance Hole Outer diameter Field tolerances and limited deviations of dimensions, tolerances forms and positioning of surfaces for washer of accuracy class A C H13 H14 H14 for s > H15 for s > Washers for fingers - H11; Locking devices H12 s s1 not less than -Up to 4.0 0.5 SNOM h14 h16 h15 for s > Thickness s Nominal Up to 0.5 Above 0.5 to 1.0 Chamfer Tolerance for parallelness for plane round washer Planeness Tolerance for plane round washer *Tolerance for coaxiality s Limited deviations 0.05 0.10 Nominal Up to 1.0 From 30 to 45° emin = 0.25 s emax = 0.50 s S Limited deviations 0.2 a, Not more than S a, Not more than Up to 0.5 Above 0.5 to 1.0 0.025 0.050 Up to 1.0 0.2 s Up to 0.5 Above 0.5 to 1.0 E 0.05 0.10 s E 0.25 d2 Up to 50 b ±1.0 d2 Up to 50 b ±0.25 Up to 1.0 Page - - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE Note * Tolerance for co-axiality- Deviation for co-axiality ‘b’ is determined by measuring the internal diameter with respect to external diameter and taking difference in dimensions K and K1 Figure 4.1 4.0 RAW MATERIAL FOR WASHERS 4.1 The raw material for these washers to be procured in sheets 4.2 General Requirements 4.2.1 De-lamination in rolled stock is not allowed 4.2.2 In macro structure of rolled stock there should not be de-lamination, accumulation of flattened blisters, slag inclusions and flakes, visible without magnifiers 4.2.3 The raw material sheets are to be in cold rolled condition with bright surface finish 4.2.4 Sheets should be supplied with trimmed edges 4.2.5 There should be no cracks, tears, exfoliation and other defects noticeable by naked eye 4.2.6 Grinding for the defects allowed but the area of grinding on the face side of the sheet should not exceed 5% of the total area of the sheet 4.2.7 After etching surface should have a matt finish with gray shade 4.2.8 Surface of the sheets should be even, smooth and clean 4.2.9 Presence of any pitted surface and over pickling on the surface of the sheets is not allowed Page - - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE 4.3 Chemical Composition of Carbonised steel ( CT20) is as per the Table-4 Grade of steel Table-4 Mass fraction of the elements % C Si Mn Ph Carbonised 0.17Steels 0.24 (C20)/08 кп/10 кп 4.4 0.170.37 0.350.65 0.04 Su Chrome Nickel Not more than 0.04 0.25 0.25 Chemical Composition of Corrosion resistive Steels (12X18H10T) is as per the Table-5 Table-5 Grade of Mass fraction of the elements % steel C Si Mn Ph Su Chrome Not more than 12X18H10T 0.12 0.8 2.0 0.035 0.02 17.0 19.0 4.5 4.6 9.0 11.0 Titanium 5.0 - 0.70 Chemical Composition of Spring Carbon & Alloy Steels (65Г) is as per the Table-6 Grade of steel 65Г Nickel Table-6 Mass fraction of the elements % C Si Mn Chromium S P Not more than 0.62-0.70 0.17-0.37 0.90-1.20 0.25 0.035 0.035 Chemical Composition of Alloy Steels (30XГCA) is as per the Table-7 Table-7 Grade of steel Mass fraction of the elements % C Si Mn Chromium S P Not more than 30XГCA 0.28-0.34 0.09-1.2 0.8-1.1 0.8-1.1 0.025 0.02 Page - - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE 4.7 Chemical Composition of Al alloy (АМг5) is as per the Table-8 Table-8 Grade Mass fraction of the elements % of Al Other element Si Fe Cu Zn Mn Mg Ti Each Sum Not more than Not more than АМг5 0 4.70.020.1 0.2 0.3-0.8 0.05 0.1 5 5.7 0.1 4.8 Chemical Composition of Al alloy (Д1) is as per the Table-9 Table-9 Mass fraction of the elements % Grade of Al Fe Cr Zn Ti Si Mg Cu Mn Not more than Д1 0.2-0.8 0.4-0.8 3.5-4.5 0.4-1.0 0.7 0.1 0.25 0.15 5.0 MECHANICAL PROPERTIES 5.1 Carbonised steel ( CT20) mechanical properties in accordance with norms of Table-10 Grade of steel 08 кп 20 Grade of steel 08 кп 20 5.2 Table-10 Without heat treatment, after controllable or standardized rolling Ultimate Strength Relative Yield point Б, N/mm2 2 Elongation Б3, N/mm (Kgf/mm ) Б , in %(Min) (Min) (Kgf/mm )(Min) 175(18) 290(30) 35 225(23) 380(39) 27 Diameter of impression, mm, max Hardness HB, max 5.2 131 4.8 156 Corrosion resistive Steels ( 12X18H10T) mechanical properties in accordance with norms of Table-11 Grade of steel State in which supplied 12X18H10T Semi Cold Hardened Cold Hardened Table-11 Mechanical properties not less than Ultimate Strength, Relative elongation Kgf/mm2 at L= 5, 65√F, (Min) in %(Min) 75 25 90-110 15 Page - - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE 5.2.1 Annealing of 12X18H10T to be carried out at a temperature range of 1020 to 1100oC, Quenching in air, oil or water 5.3 Spring Carbon & Alloy Steels (65Г) mechanical properties in accordance with norms of Table-12 Table-12 Grade Heat Treatment mode Mechanical properties, not less than of Yield Ultimate Relative Hardening Hardening Tempering steel stress in strength in elongation temperature media temperature mpa(Kgf/ mpa(Kgf/ in % (°C) (°C) (°C) mm2) mm2) 65Г 830 Oil 470 785(80) 980(80) 5.4 Alloy Steels (30XГCA) mechanical properties in accordance with norms of Table-13 Table-13 Grade of steel 30XГCA 5.5 Heat Treatment mode Hardening Hardening temperature media (°C) (°C) 880±15 Oil Mechanical properties, not less than Tempering Yield Ultimate Relative temperature stress in strength in elongation (°C) mpa(Kgf/ mpa(Kgf/ in % mm2) mm2) 510-570 835(85) 1080(110) 10 Aluminum Alloy (АМг5) mechanical properties in accordance with norms of Table-14 Table-14 Grade of Al АМг5 Heat Treatment mode Annealed Mechanical properties, not less than Yield stress in Mpa Ultimate strength in (Kgf/mm2) Mpa (Kgf/mm2) 130(13) 275 (28) Relative elongation in % 15 5.5 Aluminum Alloy (Д1) mechanical properties in accordance with norms of Table-15 Table-15 Mechanical properties, not less than Heat Treatment Grade of Al Yield stress in Ultimate strength Relative mode mpa(Kgf/mm2) in mpa(Kgf/mm2) elongation in % Д1 Annealed To be reported 145-225(15-23) 12 Page - - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE 6.0 ACCEPTANCE CRITERIA (GOST 17769-83) 6.1 Checking of external appearance 6.1.1 Checking of external appearance to determine the presence of surface defects and design defects (failure to carry out special elements, for example grooves, threads, bends and others), its quantity and dimensions 6.1.2 While checking external appearance, parts are differentiated into critical, medium and non-critical defects Critical defects – cracks stress and folds in the place of changing cross-section of parts Medium defects – expanded bubbles, stamping cracks and damage of thread Diameter, if its quantity and dimensions exceeds the permissible norms and design defects Other defects are related to Non critical defects 6.1.3 Checking plan for external appearance – single-stage Checking level and values of accepting level defects are given in table-16 Table-16 Elements of control plan Checking level Accepting level of defectiveness AQL, % Critical 0.015 Surface and design defects considerable less considerable S–4 2.5 4.0 6.2 Checking of geometric parameters 6.2.1 Geometric parameters (dimensions, tolerance forms and surface roughness) should be checked after completion of checking of external appearance as per point 6.1 6.2.2 The first fifteen components punched by the press tool is subjected to 100% inspection as per the component drawing, If found OK the press tool is cleared for further production activities 6.2.3 While checking geometric parameters, parts are differentiated as Basic and Second-stage parameters Basic parameters – Diameter of the hole and external diameter Second stage parameters – Rest of all Page - - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE 6.2.4 Checking plan of geometric parameters – double-stage Control level and acceptance values for defectiveness are given in table-17 Table-17 Applied dimensional characteristics Basic characteristics second-stage characteristics Diameter of hole External diameter Rest of all Class of accuracy A C AQL 1.0 1.5 1.5 2.5 2.5 4.0 6.3 Checking of mechanical properties 6.3.1 Mechanical properties are checked by testing the withstand-ability for bending on mandrels or bars and the number of bends is not less than four 6.3.2 During the mechanical property checks, parts are differentiated into destructive and non-destructive checks Non-destructive checks – checking the spring properties of washer, hardness of washer etc Destructive checks – Bend tests, and all other tests which make the part useless for assigned functionality 6.3.3 During the bend tests the samples are bent till the sides are parallel around the mandrel or bar with a diameter equal to double the sheet thickness 6.3.4 The rounding radius for jaws during bend tests is taken as five times the sheet thickness 6.3.5 Chemical composition analysis to be carried out and mentioned in the quality certificates 6.3.6 Specimen for checking the mechanical properties - One sheet, roll or strip may be taken from a batch or lot for carrying out bend tests and chemical composition analysis 6.3.7 Checking plan for mechanical properties – single-stage Control level and acceptance values for defectiveness are as per table-18 Page - 10 - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE Table-18 Elements for control plan Control level Accepting level of defectiveness AQL, % Applied mechanical properties Hardness Checking of mechanical properties Non- destructive Destructive S–3 S–2 2.5 Carbon steel or alloy steel AQL 0.65 Stainless steel 6.4 Checking of coating quality 6.4.1 While checking the coating quality, parts are differentiated by its type of thickness, porosity, durability to adhesion and protecting properties of coating 6.4.2 Where ever coating thickness to be checked, raw material of same composition either flat or round are to be used for finding the actual thickness of coating by measuring it before and after coating Following test should be carried out on washers coatings Test for checking the thickness of coating (Gravimetric method, X-ray fluorescent method and radiation method) Test for checking the porosity of coating Test of cohesive strength of coating (Heat method as per table-19) Test to check the protective properties of metallic coating (Salt spray test, chamber Temperature 35-50°C) Table-19 Temperature of heating components °C with coating Main metal or metal of the sub-layer Steel, Cast iron Al & its alloys Titanium & its alloys 190 190 Chromium including multi layered coating 300 200 Nickel including the tin, nickel alloy obtained chemically 300 200 - 210 210 Zinc, Cadmium alloys coating Page - 11 - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE 6.4.3 Measuring instrument which ensures a measurement error of not more than ±10% is allowed to use 6.4.4 Control plan for checking the coating quality – single-stage Control level S – Acceptance level of defectiveness AQL = % 6.5 Hydrogen embrittlement relief When the surface hardness is above 32 HRC (320HV), process investigation shall be conducted using a test to detect hydrogen embrittlement, to be sure that the process with regard to embrittlement is under control Post plating hydrogen deembrittlement shall be carried out at a temperature as per SAE AMS 2759, within hours after plating, the soaking time shall be hours for 10.9 property class The time-temperature chart shall be maintained for each batch of hydrogen deembrittlement cycle If embrittlement is discovered, modify the manufacturing process 7.0 PACKING, MARKING, TRANSPORTATION & STORAGE 7.1 Packing 7.1.1 It is not allowed to mix the different varieties of washers together i.e materials, size, type of coating or thickness of coating 7.1.2 Timely anticorrosive protective packing shall be carried out with oil paper 7.1.3 Entire batch of washers of a particular designation shall be sub divided into a size of fifty numbers each and packed in plastic package Each plastic package shall bear the appropriate designation, including complete part number, lot identification no., quantity, the manufacturer’s mark and a pictorial representation of the contained item Packages shall be made in such a way that they are protected against mechanical damage in transit and these shall be placed inside a carton/plastic box and sealed These carton/plastic boxes are placed inside the wooden box 7.2 Marking 7.2.1 Outside the wooden box, designation of the washer shall be mentioned Page - 12 - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE 7.2.2 Weight and quantity of the item shall be mentioned outside 7.2.3 Quality certificate from QC for the approval of the item shall be enclosed inside the box 7.2.4 Packing list for the entire items inside the box shall be pasted outside the wooden box 7.2.5 Suppliers & Customers company address and contact person shall be mentioned outside the box 7.2.6 Opening side of the box shall be mentioned 7.3 Transportation & Storage 7.3.1 Copy of the invoice challan shall accompany the consignment 7.3.2 Due care shall be taken while loading, unloading & transportation 7.3.3 Storage shall not be done in open to atmospheric condition 8.0 LIST OF WASHERS According to the GOST designation of washers its is sub- divided in to 12 categories as per Enclosure-1 9.0 DRAWING OF WASHERS 9.1 GOST 10450-78 (Enclosed as Annexure - 1) 9.2 GOST 13465-68 (Enclosed as Annexure - 2) 9.3 GOST 11872-89 (Enclosed as Annexure - 3) 9.4 GOST 10906-78 (Enclosed as Annexure - 4) 9.5 GOST 11371-78 (Enclosed as Annexure - 5) 9.6 GOST 13463-77 (Enclosed as Annexure - 6) 9.7 GOST 11648-75 (Enclosed as Annexure - 7) 9.8 GOST 13464-77 (Enclosed as Annexure - 8) 9.9 GOST 6402-70 (Enclosed as Annexure - 9) 9.10 GOST 6958-75 (Enclosed as Annexure - 10) 9.11 OST 11508-74 (Enclosed as Annexure -11) 9.12 OST 11782-78 (Enclosed as Annexure - 12) Page - 13 - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE 10.0 SURVEILLANCE: The vendor shall permit DRDL representatives to observe/monitor the manufacture of the item at the vendor's works during the execution of the contract 11.0 INSPECTIONS AND QUALITY CONTROL: The vendor shall prepare a detail manufacturing process plan and quality control plan and submit to DRDL before execution of the job 12.0 ACCEPTANCE CRITERIA: It is the responsibility of the vendor to developed gauges & tools to carry out all acceptance tests at the vendor's premises Vendor shall submit two copies of the following documents Raw Material certificates Mechanical properties certificates Dimensional report Coating thickness certificates Hydrogen de-embrittlement Based on the above certificates and fulfillment of this Scope of Work and QA Plan, washer will be accepted Final acceptance authority of the complete washers will be with DRDL 13.0 REJECTIONS: DRDL reserves the right to reject any material/items not conforming to this Scope of Work and QA plan or to authorize modifications The deliverables must be supplied within the PDC Page - 14 - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE LIST OF WASHERS SL NO SIZE A5.11.019 A4.21.11 C.8.11.029 C6.35.10 GOST QUANTITY GOST 10450-78 360 GOST 13465-68 360 GOST 11371-78 480 Aluminum alloys(Д1) GOST 11371-78 360 4.02.Cт3.029 Carbonised Steels Cт3 GOST 11371-78 420 8.01.08кп.029 Carbonised Steels (08кп) GOST 11371-78 420 18.21.11 GOST 13463-77 480 6.21.11 GOST 13464-77 480 A4.11.019 GOST 6958-75 420 10 A3.21.11 GOST 6958-75 360 11 A4.04.016 Carbonised Steels(C20) GOST 10450-78 360 12 A6x0,8.04.019 Carbonised Steels(C20) GOST 10450-78 360 13 A8x0,8.04.016 Carbonised Steels(C20) GOST 10450-78 420 14 A4.11.016 Alloyed steels(40X/30XГСА) GOST 11371-78 420 15 5.02.Cт3.029 Carbonised Steels Cт4 GOST 11371-78 360 16 16.02.029 GOST 11371-78 420 17 C16.02.029 GOST 11371-78 360 Carbonised Steels(C20) GOST 11371-78 408 18 A4.04.019 MATERIAL Alloyed steels(40X/30XГСА) Corrosion resistive steels(12X18H10T Alloyed steels (40X/30XГСА) Enclosure -1 Corrosion resistive steels(12X18H10T) Corrosion resistive steels(12X18H10T) Alloyed steels(40X/30XГСА) Corrosion resistive steels(12X18H10T) Carbonised Steels Cт3/ Cт3 кп Carbonised Steels Cт3/ Cт3 кп 19 4.04.016 Carbonised Steels(C20) GOST 13463-77 408 20 6.04.016 Carbonised Steels(C20) GOST 13463-77 408 21 8.04.019 Carbonised Steels(C20) GOST 13463-77 408 22 5.65Г Steel of Grade 65Г GOST 6402-70 354 23 A18.21.11 Corrosion resistive steels(12X18H10T) GOST 10450-78 366 Page - 15 - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE 24 C.4x0,5.21.11 Corrosion resistive steels(12X18H10T) GOST 11371-78 414 25 5.04.016 Carbonised Steels(C20) GOST 13463-77 426 26 5.21.11 GOST 13463-77 366 27 A5.11 30XГСА.029 GOST 10450-78 354 28 A12.21.11 GOST 13465-68 432 29 20.01.08кп.029 GOST 11872-89 426 30 A2x0.5.11.019 GOST 11371-78 372 31 A4.11.019 GOST 11371-78 486 32 C2.35.10 Aluminum alloys(Д1) GOST 11371-78 414 33 10.02.029 Carbonised Steels Cт6 GOST 11371-78 480 34 24.02.Cт3.019 GOST 11371-78 474 35 12.02.029 GOST 11371-78 426 36 3.65Г.026 Steel of Grade 65Г GOST 11648-75 492 37 6.04.016 Carbonised Steels(C20) GOST 13464-77 480 38 A5.35.10 Aluminum alloys(Д1) GOST 6958-75 474 39 A6.21.11 GOST 6958-75 426 40 10-0.5-Пас OST 11508-74 480 41 A6x5.31.10 Aluminum alloys(АМг5) GOST 11371-78 486 42 A6x5.35.10 Aluminum alloys(Д1) GOST 11371-78 474 43 A12.11.019 Alloyed steels(40X/30XГСА) GOST 10450-78 420 44 A12x1,5.37.10 Aluminum alloys(Д1) GOST 10450-78 492 45 A5.11.019 GOST 11371-78 426 46 2.6.21.11 GOST 13463-77 414 47 6.65Г.Кд6.фос.окс.гфж Steel of Grade 65Г GOST 6402-70 480 48 A5.11.019 Alloyed steels(40X/30XГСА) GOST 6958-75 486 Corrosion resistive steels(12X18H10T) Alloyed steels(40X/30XГСА) Corrosion resistive steels(12X18H10T Carbonised Steels(08кп) Alloyed steels(40X/30XГСА) Alloyed steels(40X/30XГСА) Carbonised Steels Cт3/ Cт3 кп Carbonised Steels Cт3/ Cт3 кп Corrosion resistive steels(12X18H10T) Corrosion resistive steels(12X18H10T) Alloyed steels(40X/30XГСА) Corrosion resistive steels(12X18H10T) Page - 16 - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE 49 8.01.10кп.029 Carbonised Steels (10кп) GOST 6958-75 486 50 6.21 Corrosion resistive steels(12X18H10T) GOST 6958-75 492 51 A8.04.019 Carbonised Steels(C20) GOST 10450-78 414 52 8.02.Cт3.029 Carbonised Steels Cт3/ Cт3 кп GOST 11371-78 480 53 5.65ГЦ6.фос.окс.гфж Steel of Grade 65Г GOST 6402-70 486 54 A8.35.10 Aluminum alloys(Д1) GOST 10450-78 492 55 A3.04.019 Carbonised Steels(C20) GOST 11371-78 480 56 C2.04.016 Carbonised Steels(C20) GOST 11371-78 486 57 A4.21.11 Corrosion resistive steels(12X18H10T) GOST 11371-78 486 58 5.65Г.026 Steel of Grade 65Г GOST 11648-75 492 59 A6.04.019 Carbonised Steels(C20) GOST 6958-75 492 60 16.04.029 Carbonised Steels(C20) GOST 6958-75 486 61 C.5.11.029 Alloyed steels(40X/30XГСА) GOST 11371-78 480 62 A5x2,5.35.10 Aluminum alloys(Д1) GOST 11371-78 486 63 A5.04.019 Carbonised Steels(C20) GOST 11371-78 492 64 A8.21.11 Corrosion resistive steels(12X18H10T) GOST 10450-78 492 65 C5.35.10 Aluminum alloys(Д1) GOST 11371-78 606 66 C3.35.10 Aluminum alloys(Д1) GOST 11371-78 600 67 20.02.029 GOST 11371-78 612 68 12.21.1-№:150 GOST 13463-77 606 69 A6.04.019 Carbonised Steels(C20) GOST 11371-78 618 70 A2,5.04.019 Carbonised Steels(C20) GOST 11371-78 612 71 A6x3.21.11 GOST 11371-78 606 72 C.3.21.11 GOST 11371-78 600 73 6.04.019 Carbonised Steels(C20) GOST 13463-77 624 74 8.21.11 Corrosion resistive steels(12X18H10T) GOST 13463-77 618 Carbonised Steels Cт3/ Cт3 кп Corrosion resistive steels(12X18H10T) Corrosion resistive steels(12X18H10T) Corrosion resistive steels(12X18H10T) Page - 17 - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE 75 A6.21.11 Corrosion resistive steels(12X18H10T GOST 13465-68 606 76 A5.04.019 Carbonised Steels(C20) GOST 10450-78 600 77 A4.35.10 Aluminum alloys(Д1) GOST 11371-78 600 78 A6.04.019 Carbonised Steels(C20) GOST 10450-78 618 79 A3.21.11 GOST 10450-78 618 80 10.21.11 GOST 11872-89 624 81 C6.02.Cт3.019 Carbonised Steels Cт5 GOST 11371-78 630 82 A8.21.11 Corrosion resistive steels(12X18H10T) GOST 11371-78 630 83 C10.01.08кп.019 Carbonised Steels (08кп) GOST 6958-75 624 84 6.02.Cт3.029 GOST 11371-78 612 85 C.6.21.11 GOST 11371-78 618 86 4,2- Кд Carbonised Steels(C20) OST 11782-78 612 87 C4.35.10 Aluminum alloys(Д1) GOST 11371-78 606 88 A10.11.019 Alloyed steels(40X/30XГСА) GOST 11371-78 600 89 A8.35.10 Aluminum alloys(Д1) GOST 11371-78 624 90 8.65Г.029 Steel of Grade 65Г GOST 6402-70 630 91 A2.21.11 GOST 10450-78 630 92 A10.21 GOST 13465-68 624 93 A8x0,8.21.11 GOST 11371-78 636 94 A8x0,3.21.11 GOST 11371-78 636 95 6.21.11 GOST 13463-77 642 96 A8.11.019 GOST 10450-78 624 97 10.65Г.029 Steel of Grade 65Г GOST 6402-70 642 98 A5.21.11 Corrosion resistive steels(12X18H10T GOST 13465-68 648 99 A5.35.10 Aluminum alloys(Д1) GOST 11371-78 648 Corrosion resistive steels(12X18H10T) Corrosion resistive steels(12X18H10T) Carbonised Steels Cт3/ Cт3 кп Corrosion resistive steels(12X18H10T) Corrosion resistive steels(12X18H10T) Corrosion resistive steels(12X18H10T Corrosion resistive steels(12X18H10T) Corrosion resistive steels(12X18H10T) Corrosion resistive steels(12X18H10T) Alloyed steels(40X/30XГСА) Page - 18 - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE 100 A2,5.21.11 Corrosion resistive steels(12X18H10T) GOST 10450-78 654 101 A10.35.10 Aluminum alloys(Д1) GOST 11371-78 654 102 A10.21.11 GOST 10450-78 654 103 C.5.21.11 GOST 11371-78 660 104 A6.21.11 GOST 11371-78 660 105 4,2- Ц OST 11782-78 660 106 A4.21.11 GOST 10450-78 654 107 A6.21.11 GOST 13463-77 654 108 A6x0,5.35.10 Aluminum alloys(Д1) GOST 11371-78 660 109 A4.35.10 Aluminum alloys(Д1) GOST 10450-78 660 110 A3.35.10 Aluminum alloys(Д1) GOST 10450-78 666 111 A10.11 30XГСА.019 Alloyed steels(40X/30XГСА) GOST 11371-78 672 112 A2,5.35.10 Aluminum alloys(Д1) GOST 10450-78 672 113 6.02.Cт3.019 Carbonised Steels(CT3) GOST 10906-78 750 114 A5.21.11 Corrosion resistive steels(12X18H10T) GOST 11371-78 780 115 A6.35.10 Aluminum alloys(Д1) GOST 11371-78 990 116 A2.35.10 Aluminum alloys(Д1) GOST 10450-78 1110 117 A6.35.10 Aluminum alloys(Д1) GOST 10450-78 1620 118 A5.35.10 Aluminum alloys(Д1) GOST 10450-78 1848 119 6.65Г.029 Steel of Grade 65Г GOST 6402-70 1848 120 A6.21.11 GOST 10450-78 2364 121 A5.21.11 GOST 10450-78 2382 122 5.65Г.029 GOST 6402-70 2742 Corrosion resistive steels(12X18H10T) Corrosion resistive steels(12X18H10T) Corrosion resistive steels(12X18H10T) Carbonised Steels(C20) Corrosion resistive steels(12X18H10T) Corrosion resistive steels(12X18H10T) Corrosion resistive steels(12X18H10T) Corrosion resistive steels(12X18H10T) Steel of Grade 65Г Page - 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Page - - of 19 QA PLAN FOR WASHERS OF PJ-10 ARTICLE 4.3 Chemical Composition of Carbonised steel ( CT20) is as per the Table-4 Grade of steel Table-4 Mass fraction of the elements % C Si Mn Ph Carbonised... 0.2-0.8 0.4-0.8 3.5-4.5 0.4-1.0 0.7 0.1 0.25 0.15 5.0 MECHANICAL PROPERTIES 5.1 Carbonised steel ( CT20) mechanical properties in accordance with norms of Table-10 Grade of steel 08 кп 20 Grade of