1、 AEROSPACE STANDARD FITTING, ELBOW, 90, BEAM SEAL BULKHEAD AS4221Copyright 2015 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwis
2、e, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org ISSUED 1996-05REVISED 2007-09 REAFFIRMED 2015-04THIRD ANGLE PROJE
3、CTION CUSTODIAN: G-3/G-3B REV.C FEDERAL SUPPLY CLASS 4730AS4221 SHEET 1 OF 3 REV. C PROCUREMENT SPECIFICATION: /5/ AS85421, AS85720SAE Technical Standards Board Rules provide that: “This report ispublished by SAE toadvance thestate of technicalandengineering sciences. Theuse ofthisreport is entirely
4、voluntary, andits applicability and suitability forany particularuse,including any patent infringement arising therefrom, isthe soleresponsibilityofthe user.”SAE reviews eachtechnicalreport at least every five years at which time itmay berevised,reaffirmed, stabilized, orcancelled. SAE invites yourw
5、rittencomments andsuggestions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/AS4221C RATIONALE AS4221C HAS BEEN REAFFIRMED TO COMPLY WITH THE SAE FIVE-YEAR REVIEW POLICY. FIGURE 1 - FITTING, ELBOW, 90, BULKHEAD TABLE 1 - DIMENS
6、IONS AND WEIGHTS BASIC NO. AS4221 /15/ SIZE CODE (NOMINAL TUBE SIZE) T THREAD PER AS8879 CLASS A A B G MIN V W LB/EA MAX CRES LB/EA MAX TI 03 04 05 06 08 10 12 14 16 20 24 .188 .250 .312 .375 .500 .625 .750 .875 1.000 1.250 1.500 .3750-28 UNJS .4375-24 UNJS .5000-24 UNJS .5625-20 UNJS .7188-20 UNJS
7、.8438-18 UNJS 1.0000-16 UNJ 1.1250-16 UNJ 1.2500-14 UNJS 1.5781-14 UNJS 1.8438-14 UNJS 1.143 1.225 1.261 1.353 1.542 1.769 1.953 2.188 2.188 2.326 2.712 .575 .617 .653 .704 .824 .955 1.062 1.216 1.246 1.387 1.688 .285 .329 .391 .454 .547 .673 .860 1.110 1.110 1.360 1.610 .360- .377 .360- .377 .423-
8、.440 .485- .502 .547- .565 .673- .691 .860- .878 1.110-1.128 1.110-1.128 1.355-1.380 1.605-1.630 .055 .060 .060 .060 .065 .070 .095 .105 .110 .110 .130 .0487 .0608 .0792 .100 .156 .229 .347 .588 .576 .877 1.37 .0278 .0348 .0453 .0572 .0889 .131 .198 .336 .329 .501 .781 AEROSPACE STANDARD AS4221 SHEE
9、T 2 OF 3 REV. C FITTING, ELBOW, 90, BEAM SEAL BULKHEAD NOTES: /1/ MATERIAL: a. CODE LETTER T - TYPE 6AL-4V TITANIUM ALLOY FORGING OR BAR PER AMS 4965. b. CODE LETTER P - TYPE 17-4PH CORROSION RESISTANT STEEL FORGING OR BAR PER AMS 5643. c. CODE LETTER V - TYPE 15-5PH CORROSION RESISTANT STEEL FORGIN
10、G OR BAR PER AMS 5659. 2. HEAT TREATMENT: a. MATERIAL CODE LETTER T - NONE. b. MATERIAL CODE LETTERS P AND V - HEAT TREAT TO CONDITION H 1075 PER AMS 2759/3. 3. FINISH: a. MATERIAL CODE LETTER T - NONE. b. MATERIAL CODE LETTERS P AND V - PASSIVATE PER AMS 2700. /4/ DRY FILM LUBRICANT: APPLY DRY FILM
11、 LUBRICANT PER AS5272, TYPE I TO SEALING SURFACE. OVERSPRAY IN BORE IS NOT PERMITTED. /5/ PROCUREMENT SPECIFICATION: AS85421 FOR OPERATING PRESSURES TO 4000 psi AND AS85720 FOR OPERATING PRESSURES TO 5000 psi, EXCEPT AS SPECIFIED ON THIS STANDARD. THIS PART SHALL BE QUALIFIED TO THE PROCUREMENT SPEC
12、IFICATION AS APPLICABLE IN A COMPLETE ASSEMBLY. USERS OF THIS STANDARD ARE ADVISED TO CONTROL SOURCE APPROVAL(S) BY STANDARD PAGE SUPPLEMENT SHEET OR SIMILAR MEANS. /6/ IDENTIFICATION AT LOCATION SHOWN: MARK PER AS478 CLASS C OR D OR METHOD 7A3, 15A3, OR 15B. /7/ a. FOR SIZES 06 (.375 OD TUBE SIZE)
13、AND SMALLER: MANUFACTURERS NAME OR TRADEMARK, MATERIAL CODE LETTER AND MAXIMUM PRESSURE RATING. (EXAMPLE: 5K = 5000 psi.) b. FOR SIZES 08 (.500 OD TUBE SIZE) AND LARGER: MANUFACTURERS NAME OR TRADEMARK, BASIC PART NUMBER, MATERIAL CODE LETTER AND MAXIMUM PRESSURE RATING. (EXAMPLE: 5K = 5000 psi.) /7
14、/ THIS PART IS DESIGNED FOR USE IN SYSTEMS WITH MAXIMUM OPERATING PRESSURES AS FOLLOWS: a. SIZES 03 THROUGH 16 AT 5000 psi b. SIZE 20 AT 3000 psi c. SIZE 24 AT 2000 psi 8. WHEN MACHINED FROM BAR OR OVERSIZED FORGINGS, THE CENTER BODY SECTION SHALL CONFORM TO AS1376 TABLE 4. /9/ .030 TO .125 RADIUS U
15、NLESS QUALIFICATION OF SPECIAL PROCESS WITH SMALLER RADIUS. APPLICABLE FOR TITANIUM ALLOY PARTS ONLY. 10. INTERPRETATION OF DRAWING PER ARP4296. 11. SURFACE TEXTURE: SYMBOLS PER ANSI Y14.36; REQUIREMENTS PER ANSI/ASME B46.1. UNLESS OTHERWISE SPECIFIED, SURFACES TO BE 125 in Ra. FORGED SURFACES MAY B
16、E 250 in Ra. AEROSPACE STANDARD AS4221 SHEET 3 OF 3 REV. C FITTING, ELBOW, 90, BEAM SEAL BULKHEAD 12. REMOVE ALL BURRS AND BREAK EDGES .003 TO .015 UNLESS OTHERWISE SPECIFIED. 13. DIMENSIONING AND TOLERANCING: ASME Y14.5M-1994 14. DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED, TOLERANCES: LINEAR
17、DIMENSIONS .015, ANGULAR DIMENSIONS 2. /15/ EXAMPLE OF PART NUMBER: 16. THE CHANGE BAR ( l ) LOCATED IN THE LEFT MARGIN IS FOR THE CONVENIENCE OF THE USER IN 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.
