1、Copyright 2001 Society of Automotive Engineers, Inc. Printed in the U.S.A.All rights reserved.TO PLACE A DOCUMENT ORDER: (724) 776-4970 FAX: (412) 776-0790 SAE WEB ADDRESS: http:/www.sae.org400 Commonwealth Drive, Warrendale, PA 15096-0001SAE Technical Standards Board Rules providethat: “This report
2、 is published by SAE to advancethe state oftechnical and engineering sciences.Theuse ofthis reportisentirelyvoluntary, andits applicabilityand suitabilityfor any particularuse,including any patentinfringement arising therefrom,isthe sole responsibility of the user.”SAE reviews each technical reporta
3、tleastevery five years atwhich timeitmay bereaffirmed,revised, or cancelled.SAE invites yourwritten comments and suggestions.SHEET 1 OF 3MA2028REV.BTHIRD ANGLE PROJECTIONAEROSPACE STANDARDMA2028REV.BISSUED 1985-08 REVISED 1997-09 REAFFIRMED 2001-12(R) FITTING, CROSS, THINWALL, FLARELESS, METRICCUSTO
4、DIAN: SAE G-3/G-3B PROCUREMENT SPECIFICATION: /5/ MA2005 (ISO 7169)FEDERAL SUPPLY CLASS 4730FIGURE 1 CROSS, FLARELESSTABLE 1 - DIMENSIONS AND WEIGHTSBASIC NO.MA2028/17/SIZE CODE(NOMINALTUBESIZE DN)/1/T THREADPER MA1370(ISO 5855-3)4g6g A V ZKg/100MAXCRESKg/100MAXTI05 5 MJ 10 X 1 18 7.50- 8.06 1.3 2.4
5、6 1.3606 6 MJ 12 X 1.25 20 9.50-10.06 1.8 4.21 2.3208 8 MJ 14 X 1.5 23 11.40-12.06 1.8 5.72 3.1610 10 MJ 16 X 1.5 25 13.40-14.06 2.0 7.58 4.1812 12 MJ 18 X 1.5 26 15.4 -16.1 2.0 9.28 5.1214 14 MJ 20 X 1.5 27 17.4 -18.1 2.0 11.2 6.1716 16 MJ 22 X 1.5 28 19.4 -20.1 2.0 12.8 7.0620 20 MJ 27 X 1.5 32 23
6、4 -24.1 2.5 19.8 10.925 25 MJ 33 X 1.5 36 29.4 -30.1 2.5 33.4 18.432 32 MJ 42 X 2 42 38.2 -39.2 3.5 60.5 33.4Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-400 Commonwealth Drive, Warrendale, PA 1509
7、6-0001FITTING, CROSS, THINWALL, FLARELESS, METRICAEROSPACE STANDARDMA2028SHEET 2 OF 3MA2028REV.BREV. B(R)NOTES:/1/ DN = NOMINAL TUBE OUTSIDE DIAMETER./2/ MATERIAL:a. CODE LETTER J - TYPE 304 CORROSION RESISTANT STEEL PER AMS 5639 OR QQ-S-763.b. CODE LETTER K - TYPE 316 CORROSION RESISTANT STEEL PER
8、AMS 5648 OR QQ-S-763.c. CODE LETTER R - TYPE 321 CORROSION RESISTANT STEEL PER AMS 5645 OR QQ-S-763.d. CODE LETTER T - TYPE 6AL-4V TITANIUM ALLOY PER AMS 4928.3. HEAT TREATMENT: NONE.4. FINISHa. MATERIAL CODE LETTERS J, K, AND R - PASSIVATE PER QQ-P-35, TYPE VI OR VII.b. MATERIAL CODE LETTER T - ANO
9、DIZE PER AMS 2488 OR FLUORIDE PHOSPHATE CONVERSION COAT PER AMS 2486./5/ PROCUREMENT SPECIFICATION: MA2005 (ISO 7169) EXCEPT AS SPECIFIED ON THIS STANDARD. THIS PART SHALL BE QUALIFIED TO THE PROCUREMENT SPECIFICATION AS APPLICABLE IN A COMPLETE ASSEMBLY. USERS OF THIS STANDARD ARE ADVISED TO CONTRO
10、L SOURCE APPROVAL(S) BY STANDARD PAGE SUPPLEMENT SHEET OR SIMILAR MEANS./6/ IDENTIFICATION AT LOCATION SHOWN: MARK PER AS478 CLASS C OR METHOD 7A3, 15A3, OR 15B.a. FOR SIZES DN10 AND SMALLER: MANUFACTURERS NAME, CAGE CODE OR TRADEMARK, MATERIAL CODE LETTER AND PRESSURE RATING (EXAMPLE: 28K = 28,000
11、kPa).b. FOR SIZES DN12 AND LARGER: MANUFACTURERS NAME, CAGE CODE OR TRADEMARK, BASIC PART NUMBER, MATERIAL CODE LETTER AND PRESSURE RATING (EXAMPLE: 28K = 28,000 kPa).7. THIS PART IS DESIGNED FOR USE IN SYSTEMS AT TYPE II TEMPERATURE (-55 TO 135 C) WITH OPERATING PRESSURE AS FOLLOWS:a. SIZES DN05 TH
12、ROUGH DN25 AT 28,000 kPa.b. SIZE DN32 AT 14,000 kPa./8/ RADIUS OR BREAK APPLICABLE FOR TITANIUM PARTS ONLY.9. WHEN MACHINED FROM BAR OR OVERSIZED FORGING, THE CENTER BODY SECTION SHALL CONFORM TO MA2023, TABLE 2.10. THE CHANGE BAR ( l ) LOCATED IN THE LEFT MARGIN IS FOR THE CONVENIENCE OF THE USER I
13、N LOCATING AREAS WHERE TECHNICAL REVISIONS, NOT EDITORIAL CHANGES, HAVE BEEN MADE TO THE PREVIOUS ISSUE OF THIS DOCUMENT. AN (R) SYMBOL TO THE LEFT OF THE DOCUMENT TITLE INDICATES A COMPLETE REVISION OF THE DOCUMENT.11. INVENTORIED PARTS CONFORMING TO THE PREVIOUS “LETTER CHANGE“ MAY BE USED TO DEPL
14、ETION.12. INTERPRETATION OF DRAWING PER MAP4296.13. SURFACE TEXTURE: SYMBOLS PER ASME Y14.36M; REQUIREMENTS PER ASME B46.1. UNLESS OTHERWISE SPECIFIED, MACHINED SURFACES TO BE 3.2 m Ra. FORGED SURFACES MAY BE 6.3 m Ra.14. BREAK EDGES 0.1 TO 0.4 UNLESS OTHERWISE SPECIFIED.15. DIMENSIONING AND TOLERAN
15、CING: ASME Y14.5M-1994.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-400 Commonwealth Drive, Warrendale, PA 15096-0001FITTING, CROSS, THINWALL, FLARELESS, METRICAEROSPACE STANDARDMA2028SHEET 3 OF 3MA2028REV.BREV. B(R)16. DIMENSIONS IN MILLIMETERS. UNLESS OTHERWISE SPECIFIED, TOLERANCES: LINEAR DIMENSIONS 0.3, ANGULAR DIMENSIONS 030./17/Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-
