DUCTILE CAST IRON GMS0010002 Rev 3爱科英文版球铁标准

CORPORATE STANDARDS GLOBAL ENGINEERING MATERIAL STANDARDS ORIGINAL ISSUE DATERE ISSUE DATEREVISIONNUMBERPAGE 08 JUNE 200631 July 20073GMS00100021 OF 11 GLOBAL DUCTILE CAST IRON MATERIAL STANDARD AGCO Corporation 2006 Copyright in this document belongs to AGCO Corporation No part of this publication may be reproduced in any material form without the written permission of the copyright owner Uncontrolled copy latest revision only on line myAGCO com CONFIDENTIAL DOCUMENT Printed 26 3月 20 valid for 1 day 1 Introduction 1 1 Objective To provide a uniform material standard that covers all ductile cast iron used in AGCO complete machines attachments accessories and implements It facilitates global part sourcing by providing a single AGCO material specification It ensures that continuous component quality and integrity is maintained 1 2 Scope This standard applies to all ductile iron material purchased after the standard s effective date Ductile iron grades previously used by all AGCO Companies were specified by standards identified in Annex C This new uniform standard is intended to replace the previously used standards This standard describes five different grades of ductile cast iron D250 D300 D360 D420 and D480 These grades include one that was specifically developed for applications where local hardening is required D420 Grade designations are based on the combination of three factors mechanical properties hardness and microstructure of the cast product Standard grades are specified with the prefix D structural grades with prefix DX Structural grades differ only in that they are more tightly controlled and are required to meet in serial production the parameters mechanical properties microstructure chemical composition and heat treatment of the originally qualified casting 1 3 Reference Documents None 1 4 Definitions Ductile Iron a ferrous based material containing free graphite in spheroidal form characterized by a wide range of mechanical properties It is a moderate to high strength material with medium impact resistance toughness Grade Specification the grade of material shall be specified by use of this standard number followed by the specific grade required i e AGCO GMS0010002 Grade D300 If a specific grade of ductile iron is not listed on the Engineering Drawing or if there are any other questions with regard to the requirements the supplier shall contact the ordering facility and request that the engineering drawing be corrected Other additional suffix letters that may be used are N and QT as described in Section 2 5 of this standard Structural Grades Casting grades designated by prefix DX i e AGCO GSM0010002 Grade DX360 are structural grades DX castings are subject to engineering qualification that may include dynamic and or structural testing Alloy content of DX castings shall be controlled within limits subject to agreement and based upon the composition of the qualified product No process or product changes are permitted on DX castings any casting grade for that matter without SUBJECT Global Ductile Cast Iron Material Standard CORPORATE STANDARDS GLOBAL ENGINEERING MATERIAL STANDARDS ORIGINAL ISSUE DATERE ISSUE DATEREVISIONNUMBERPAGE 08 JUNE 200631 July 20073GMS00100022 OF 11 GLOBAL DUCTILE CAST IRON MATERIAL STANDARD AGCO Corporation 2006 Copyright in this document belongs to AGCO Corporation No part of this publication may be reproduced in any material form without the written permission of the copyright owner Uncontrolled copy latest revision only on line myAGCO com CONFIDENTIAL DOCUMENT Printed 26 3月 20 valid for 1 day engineering approval Structural castings shall be purchased only from approved suppliers based upon the quality approval process of the ordering AGCO facility 2 Technical Requirements 2 1 General All castings shall be marked i e characters cast on with the appropriate AGCO part number foundry identification pattern number and either the date of manufacture or the heat number of the melt For very small castings where cast on marking is impractical the ordering facility should agree on alternative arrangements that facilitate as far as practical means of batch traceability of components These markings should be either indented or raised raised is preferred letters I O and X are not utilized Location of these markings shall be such that they are not removed by subsequent machining operations and must be identified on the drawings Machine fixture locations along with special tolerance requirements involved and machine clamping points shall also be shown on the drawing Other information that should be shown on the casting drawing is Casting parting line Area s where local hardening is to take place Draft angles Location of in gates feeders runners risers etc Fettling and dressing requirements Shot blast surface finish requirement Prime paint requirement Location of test specimen It is recommended that where possible casting drawings be supplied to the foundry with as cast dimensions tolerances and other information relevant to the as cast piece be included The foundry would then sign off the casting drawing or request amendments Alternatively the foundry could be requested to create a casting drawing from the finish machined component drawing which would be presented to the AGCO machining source for approval The AGCO machining source would sign off this casting drawing as acceptable or seek amendments prior to the start of production CORPORATE STANDARDS GLOBAL ENGINEERING MATERIAL STANDARDS ORIGINAL ISSUE DATERE ISSUE DATEREVISIONNUMBERPAGE 08 JUNE 200631 July 20073GMS00100023 OF 11 GLOBAL DUCTILE CAST IRON MATERIAL STANDARD AGCO Corporation 2006 Copyright in this document belongs to AGCO Corporation No part of this publication may be reproduced in any material form without the written permission of the copyright owner Uncontrolled copy latest revision only on line myAGCO com CONFIDENTIAL DOCUMENT Printed 26 3月 20 valid for 1 day 2 2 Mechanical Properties Table 1 Mechanical Properties Minimum Values Unless Otherwise Specified AGCO Grade Casting Surface Hardness HBW Description Wall Thickness mm in Tensile Strength MPa KSI Yield Strength MPa KSI Elongation Percent 20 0 8 390 57 250 36 20 40 0 8 1 6 365 53 235 34 40 60 D250 DX250 130 180Ferritic 1 6 2 4 350 51 225 33 15 20 0 8 450 65 300 44 20 40 0 8 1 6 435 63 290 42 40 60 D300 DX300 156 217 Ferritic Pearlitic 1 6 2 4 420 61 280 41 10 20 0 8 550 80 360 52 20 40 0 8 1 6 525 76 345 50 40 60 D360 DX360 187 255 Ferritic Pearlitic 1 6 2 4 500 73 330 48 5 20 0 8 650 94 420 61 20 40 0 8 1 6 625 91 405 59 40 60 D420 DX420 217 277 Pearlitic For Local Hardening 1 6 2 4 600 87 390 57 3 20 0 8 690 100 480 70 20 40 0 8 1 6 665 96 465 67 40 60 D480 DX480 241 302Pearlitic 1 6 2 4 650 94 455 66 3 Mechanical properties shall apply to the cast product based on a test specimen cut from the casting Specimens shall be machined from areas specified on the engineering drawing and in accordance with the requirements of Annex A For foundry process control purposes mechanical properties shall be measured from separately cast test specimens per Annex B These specimens shall be poured at approximately the same time and under conditions similar to that of the production castings CORPORATE STANDARDS GLOBAL ENGINEERING MATERIAL STANDARDS ORIGINAL ISSUE DATERE ISSUE DATEREVISIONNUMBERPAGE 08 JUNE 200631 July 20073GMS00100024 OF 11 GLOBAL DUCTILE CAST IRON MATERIAL STANDARD AGCO Corporation 2006 Copyright in this document belongs to AGCO Corporation No part of this publication may be reproduced in any material form without the written permission of the copyright owner Uncontrolled copy latest revision only on line myAGCO com CONFIDENTIAL DOCUMENT Printed 26 3月 20 valid for 1 day Hardness of the casting shall be measured at the surface after suitable metal removal 1 5 mm 0 06 inches minimum and at a location specified on the engineering drawing If no location for testing is specified the location of test shall be at the option of the receiving facility unless otherwise agreed Core hardness of the casting shall not deviate from the measured surface hardness by more than 30 points HBW 2 3 Microstructure Table 2 Microstructure Characteristic Grade D250 DX250 Grade D300 DX300 Grade D360 DX360 Grade D420 DX420 Grade D480 DX480 Matrix Ferritic 25 Pearlite Ferritic Pearlitic 40 Pearlite Ferritic Pearlitic 30 70 Pearlite 70 Minimum Pearlite Pearlitic or Martensitic Graphite Size Diameter Maximum 0 09 mm 0 0036 in 0 06 mm 0 0024 in 0 09 mm 0 0036 in Nodularity85 minimum round shapes and shapes with length to width ratios less than 1 5 CarbidesLess than 2 by Volume Microstructure requirements defined in Table 2 pertain to areas of the casting away from the cast rim or areas near the riser or gate contact Cope side surfaces should be avoided when evaluating the overall microstructure Regarding nodularity the spheroidal graphite component of the microstructure shall consist of at least 85 graphite spheroids conforming to Type I and II of ASTM A 247 Matrix microstructure of grade D250 shall range from totally ferritic to a combination of ferrite with pearlite that does not cause the hardness to be above the specified upper limit Grades D300 and D360 shall contain combinations of ferrite and pearlite Grade D420 shall contain a minimum of 70 percent pearlite for local hardening Grade D480 shall contain less than 5 percent ferrite and may be produced with a pearlitic matrix microstructure or a tempered martensite matrix microstructure Carbides are undesirable and shall be kept to less than 2 percent by volume measurements to be conducted with a photomicrograph with the percentage measured within any field of view 2 4 Chemical Composition The composition limits of Table 3 apply to all grades of ductile iron CORPORATE STANDARDS GLOBAL ENGINEERING MATERIAL STANDARDS ORIGINAL ISSUE DATERE ISSUE DATEREVISIONNUMBERPAGE 08 JUNE 200631 July 20073GMS00100025 OF 11 GLOBAL DUCTILE CAST IRON MATERIAL STANDARD AGCO Corporation 2006 Copyright in this document belongs to AGCO Corporation No part of this publication may be reproduced in any material form without the written permission of the copyright owner Uncontrolled copy latest revision only on line myAGCO com CONFIDENTIAL DOCUMENT Printed 26 3月 20 valid for 1 day Table 3 Chemical Composition Weight Percent Element Grade D250 DX250 Grade D300 DX300 Grade D360 DX360 Grade D420 DX420 Grade D480 DX480 Manganese0 75 Maximum Phosphorus0 05 Maximum Sulfur0 035 Maximum Typical ranges of other elements are 3 2 to 4 1 weight percent carbon 1 8 to 3 0 weight percent silicon and 0 02 to 0 06 weight percent magnesium if magnesium is used for inoculation Elements that are not carbide stabilizers are preferred for use in stabilizing pearlite in grades D360 through D480 Preferred alloying elements are copper tin and nickel Alloying elements and the ranges used shall be subject to agreement at the time of sample approval for all DX grades 2 5 Heat Treatment Table 4 Heat Treatment GradeCondition D250As Cast or Annealed Supplier s Option DX250No Change Allowed from the Original Qualified Product D300 DX300As Cast D360 DX360As Cast D420 DX420As Cast D480As Cast Normalized or Quench and Tempered Supplier s Option DX480No Change Allowed from the Original Qualified Product D480 N DX480 NNormalized D480 QT DX480 QTQuench and Temper Heat Treatment Grade D250 may be provided in the as cast or annealed condition Grades D300 through DX420 shall be produced in the as cast condition without subsequent heat treatment When heat treatment is required for stress relief purposes it shall be specified as stress relieved on the engineering drawing along with the required stress relieving temperature If salvage heat treatment is required in order to achieve the specified tensile strength and hardness engineering deviation approval is required Grade D480 may be produced as cast normalized or quenched and tempered at the producer s option unless otherwise specified A heat treating process may be specified by use of the following suffix letters D480 N for normalized D480 QT for the quenched and tempered product CORPORATE STANDARDS GLOBAL ENGINEERING MATERIAL STANDARDS ORIGINAL ISSUE DATERE ISSUE DATEREVISIONNUMBERPAGE 08 JUNE 200631 July 20073GMS00100026 OF 11 GLOBAL DUCTILE CAST IRON MATERIAL STANDARD AGCO Corporation 2006 Copyright in this document belongs to AGCO Corporation No part of this publication may be reproduced in any material form without the written permission of the copyright owner Uncontrolled copy latest revision only on line myAGCO com CONFIDENTIAL DOCUMENT Printed 26 3月 20 valid for 1 day 2 6 Quality 2 6 1 Castings shall conform to the engineering drawing as supplied by the ordering facility unless otherwise agreed or specified The removal of gates and riser contacts shall not produce projections or depressions beyond the normal design contour except as approved by the ordering facility Cast eyebrows and flats around bolt hole locations shall be flat and free of excess metal 2 6 2 Castings shall be mechanically cleaned to remove all adherent sand scabs and scale Fins shall be ground off on all external surfaces and shall not exceed 1 5 mm 0 06 inches in height on internal surfaces Internal surfaces shall be free of all material that may loosen during subsequent use of the component in the finished assembly 2 6 3 Castings are subject to inspection for internal soundness Whether this testing is conducted by radiographic or ultrasonic testing methods or by sectioning for inspection of cut surfaces is at the option of the receiving facility In general castings are required to be sound and free from internal shrinkage porosity however shrinkage porosity in heavy non critical locations can be permitted if approved by the responsible product engineering department Shrinkage porosity when allowed in non critical locations is not permitted to extend from the interior to the cast and or machined surfaces 2 6 4 Casting soundness shall be sufficient to prevent leakage through the cross section of fluids that are contained within the assemblies where these castings are used 2 6 5 Linear defects such as cracks and hot tears are not permissible All castings are subject to inspection for these defects and inspection methods that may be used to detect the defects include magnetic particle dye penetrant visual and other methods 2 6 6 Generally welding is not permitted for repair of casting defects Salvage repair of cosmetic defects can be permitted in non structural areas or in non structural castings if specified either on the engineering drawing or by written approval of the controlling product engineering group Under no circumstances may organic fillers e g polyester or epoxy be used to repair cosmetic defects 3 First Article Approval Requirement Castings shall be subject to the approval of the ordering facility based on the currently accepted AGCO Initial Sample Inspection Report practice for the ordering facility Continuing acceptance or rejection will be based on the conformance to the engineering drawing or signed off casting drawing material specifications and other items of agreement between the ordering facility Product Engineering and the supplier as stated in the Purchase Order Suppliers should clarify with the ordering AGCO plant location if there is any requirement to pre machine location pads both for the initial machining sample and ongoing supply Structural castings i e AGCO GSM001002 Grade DX360 shall be subject to engineering qualification that may include dynamic and or other structural testing 4 Continuing Quality Control Requirements Certified reports of mechanical property test results microstructural examination and chemical composition shall be submitted to the ordering facility or are available in the supplier s files for further evaluation CORPORATE STANDARDS GLOBAL ENGINEERING MATERIAL STANDARDS ORIGINAL ISSUE DATERE ISSUE DATEREVISIONNUMBERPAGE 08 JUNE 200631 July 20073GMS00100027 OF 11 GLOBAL DUCTILE CAST IRON MATERIAL STANDARD AGCO Corporation 2006 Copyright in this document belongs to AGCO Corporation No part of this publication may be reproduced in any material form without the written permission of the copyright owner Uncontrolled copy latest revision only on line myAGCO com CONFIDENTIAL DOCUMENT Printed 26 3月 20 valid for 1 day according to the agreement between the supplier and the ordering facility They shall indicate the range of test results obtained for that period unless otherwise specified or required by the ordering facility These reports may summarize the monthly activity of the foundry by listing the part numbers and quantity of parts produced Dimensional If a supplier plans to use a casting checking fixture for routine inspection of production castings he should identify the frequency of calibration of the fixture s Also the supplier should produce prior to volume production an approved master sample casting for which a full three axis CMM inspection report exists 5 Records Each foundry supplier shall retain records of chemical composition and mechanical property test results and shall be able to show or supply those records upon request for a minimum of 3 years The supplier shall also be able to furnish test bars upon request from the approximate time the castings were made for a minimum period of up to 6 months test bar storage should be negotiated between Purchasing and the supplier due to the necessary structure to store a big quantity of test bars 6 Attachments Annex A Test Bars Machined from Castings Annex B Separately Cast Test Specimen Annex C Previously Used Standards CORPORATE STANDARDS GLOBAL ENGINEERING MATERIAL STANDARDS ORIGINAL ISSUE DATERE ISSUE DATEREVISIONNUMBERPAGE 08 JUNE 200631 July 20073GMS00100028 OF 11 GLOBAL DUCTILE CAST IRON MATERIAL STANDARD AGCO Corporation 2006 Copyright in this document belongs to AGCO Corporation No part of this publication may be reprodu