1、. MIL-T-14558 75 m 777770b OLLb7LO E m .! . . - - . - . I . . 7 . . . . . . . . . . . . . I 1 . . . I t . . .- . - . . 1 I I .f MIL-T-14558 (0l.a) 30 June 1957 SWERSEDIPiG (see Section 6) MILITARY SpEcIFICATIO? TITANIXM ALLOY, PLATE 1. SCOPE 1.1 Scope.- This specification covers annealed, heat treat
2、ed or heat treatable titanium alloy plate for applications other than amr (see 6.1). ing conditions as specified (see 6.2) 1.2 Condition.- Titanium alloy plate shall be furnished in the follow- Annealed Heat treated 2. APPLICABLE mmmm 2.1 The foliowing documents of the issue in effect on the date of
3、 - invitation for bids, form a STANDARIX mm FED-STD-48 - Tolerances part of this specification. for Steel and Iron-Wrought Products. FED. Test Method STD. No. l5l - Metals: Test Methods. MILITARY MIL-STD-129 - bbrking for Shipment and Storage. MIL-STD- - Preparation of Steel Products for Domestic Sh
4、ipment MIL-STD-i84 - Identification bhklng; of Aluminum, 1:hgnesium and Titanium. (Storage an Overseas Shipment ) . (Copies of specifications, standards, and mwngs required by contractors in connection with specific procurement functions should be obtained from the procuring agency, or as directed b
5、y the contracting officer.) 2.2 The foliowing documents form a part; of this specification. otherwise indicated, the issue in effect on &te of invttatton for bids shall apply. - Unless COJSOLID CWSIFICATIOJ COI.ITPEE PUBLICATION Consolidaeed Freight Classification Ratings, Ru,es and Regulations. - -
6、. . I . .-.- . . I . . . . _.-.-. . .- ., . - L I . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-bG-T-14558( Ord) (Application for copies should be addressed to the Consolidated Classifiaction Conmilttee, 202 Chicago Union Station, Chicago 6, Illi
7、nois.) 3. muImms 3.1 Surface finish.- Unless otherwise specified, all material furnished shaU be descaled. 3.2 Mechanical properties. 3.2.1 Yield strength.- The yield strength range shall be as specified in the contract, on the order, or on applicable ravings. 3.2.1.1 biaJbmum yield strength.- The s
8、pecifie yield strength range may -be exceeded providingthe percent elongation, percent reduction of area, and V-notch Charpy impact resistace do not fall below values specified-in table I for the upper limit of the required yield strength range. 3.2.2 Impact resistance. - The transverse V-notch Char
9、py impact resistance at -bF. shall equal or exceed that shown in table I for the yield strength of the lot being inspected. 3.2.2.1 Material less than 7/16 inch in thickness. -Charpy impact resis- tance tests sha not be required on niateria less than 7/16 inch in thickness. However, at the option of
10、 the contracting officer, the contractor may be required to demonstrate, by special tests prescribed by the contracting officer and agreed to by the contractor, that the material he proposes to furnish is satisfactory insofaras impact resistance is concerned. 3.2.3 Tensile ductility.- The reduction
11、of area and elongation shall equal or exceed Yne values shown in table I for the yield strength range of the lot being inspected. . Table I Mechanical Property Requirements for Plate Transverse Direction Yield strength (.i$ offset)PSI increments Elongation . minimun percent Reduction of area riin. $
12、 V-notch Charpy impact resistance, min. Ft. LbS. at -GOOF 90,000 - 99,999 100,000 -log, 999 110,000 -ug, 959 120,000 -129,999 130,000 -139,999 140,000 -149,999 150,000 -159,999 10 i4 12 10 8 7 35 32 29 27 25 23 21 22 18 15 12 U. 10 9 - 2 i.: . 1 I: i., . . .-. . , . 1 . i * F:2.:z2L .- . - . . , -.-
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14、- - . . . . *- , I_ * . . “. . . - . . . I . ,. . . . . . . . . .I -. . , . e I- - -. ,_. . , . c . e ,-. . - :.-. . t : e ,.- . I “ . . . . . t . . . . . i Ir .-.-.-. . i _-_._. -._ L_ ._._-._-_. -. *-_ , r .-. . . - . . . -. -.- -.-._. _.- . . - . . - . - . -. . , . L . . - . - - . ._ -.- -.-.- .
15、. . - .-, , . : . . . . “ . - custodian: Preparing activity: . . * . - - .Army - Ordnance corps . . . , . Army - Ornance Corps %her interest : GPO *S 3 20 . -. 6 Army - CEW . . . . , I. . . . . . . -. . - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
