ML20067C190

Discusses Hardness Tests Performed to Determine Whether Matl Samples Which Meet Chemical Requirements for A36 Also Meet Tensile Requirements.Specimens Meet Specs

ML20067C190
Person / Time
Site:	LaSalle
Issue date:	08/06/1982
From:	Shack W ARGONNE NATIONAL LABORATORY
To:	Lanksbury R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20067C185	List: ML20067C183 ML20067C190 ML20067C193 ML20067C201
References
NUDOCS 8212080668
Download: ML20067C190 (2)

Text

.

xteacament 4 ,,

o ARCONNE NATIONAL LABORATORY b' 9DJScdCass Ac44 APCCr#d.l{hCi5MN , M /4I!2/~32'31II r

Augus: 5, 1982 Roger 1,anksbury USNRC 799 Roossvelt Pd.

Clan Ellyn, n. 60137

( SU3JICT: Eard:sss Tas:s en A.36 Speci=e:s

Dear Reger:

Hard:sss tests were perfor:ad to da:ar isa t.e:he; the ca:erial sam,les which =eet the chemical requiremen: fe A36 =atarial also saa: the te:si"6 requireme=:s for this material. The raquire:ents include a d '- and maximum tensile strength, s =itimu= yta*.d strength, and =i=1=us el::gaties requiram nts. These should be de:e;=1:ad by criaxial te:sile tests. lieverer, because of limitatiets on the as:= ef ca:arial available harhesa tes:s -

offered the culy naa s to esti=ata these pr:74::ies. "'ce :elatic: ship ha:vea hardness a=d ficv stress is veli k:cv: (see, e .g. , F. Me *11nteck a:d A. Arge_.

Machanical 3eha'rier of Materiala). Because this ma:erial strain hardess substantially and because these spec 1=er.s were pechably subje :ad := -

significant defermation when they were re::ved, :he flow s::ess is bes:

interpreted as a lover bound on tha to:sile strengen.

Five spe:1:ses of the nemical A36 vera judged sui:able f:r testi:g. 3 These specine=s vare :nousted and polished to :e=eved *4 0 i's of the east severely deformed eaterial f:os :he surface. 7teiers hard:ess tas:s were :han performed using a 163* pyramid indanter with a icading f: :e of X kg. Sc:e explorato:7 casts showed that the par:i: lar choice of the 1cading force :.ad little affac: en the =casu:ed ha:d:ess valtas. The =ean dissenal ef the i=pressio: d was easursd and the Vickers hardeess V c:=po:nd f:cs P

85/

V = pC = *

• 4 {.* (P kg, dy =.'-

( l whe:e P is the 1cadi:s force and A. :he co::a:: aras. ~he Mayar-?ickers hardness M ywhich is based ce che pro ecter. trae A i: stead of the :::ca::

area AC ""' #0*E"t' f##*

.t* =

"?

3

=

7 C . ,w. .

.4E/:=; l g,~ ,

I s Sirec :he Meyer-Vickers hard:ess gateral'y . is a be::er rep:. san:a:i:: of :he i averaga ;; essure ce :he area of :st:ac: it was used : :: ;c:e :he f1: V s:ress l

$ fre:

7 1

I usperd Ew. T:-< w.s . m wouAUG14.

<., Mem:n> )

1 8212080660 821124 .

1 PDR ADOCK 05000375 i P PDR  !

1 I

1 l

Attachment 4 2

Il /

O Py = 3.2 S 7 f

The results f rom the five speci:.a: s are abulated belov,vich 5 l expressed in the usual American engineering c.its of psi (1 kg/c=' = lad  !

poi).

Speciu n V (kg/m ) Py (kg/c:: } S7 (psi)

A36-3 136 137 65.CG.

A36-9 145 156 69,000 A36-14 136 147 e5.000 A36-16 136 147 65 . 00<

f A36*23 134 145 6J. 000 Sisca the mini =.:.: tensila strength f r A36 :starial is 58,000 psi these results indicate tha: all these specima:s de meet this specificatio .

The naasur== ants and caleclaticus presa:ted here vers actually perfaned by J. T. Park and D. Perkir.s. Since I will be away fer the :sx: two vaeks. if you have additional questicas plasse call Jata Yul Park ac 972-!O30.

Sir.c e raiy .

rf

!. e 't.-l's Cj l' I O

7

'M * *; I Villiati .* Shaek g

Materials Scie:ca Divisio:

WJ5:dka ec: J. Y. Park D. Parkins

2. V. Vasks s

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