Document 2J6LkJ1dBNm7ppg1y4QRv85Er

A Qa Belakar A. Foclus - IS L* Ki Blilf Ba Sa Wool*? File r.r page i of e J# Aa Csnghell - OG) April 15, 1963 A. Z. M. S. B63ZZZD Z have developed scae iafenatica at Loppera which I beaten to poos a. Kenan had a representative at tbo Aa Z. M. E. aeeth In Atlantis City oho also obtained a espy of tha Anderscnpaper, and they ham passed the paper an to thair refractory engineers for commit. ffuhsapaigtiy, Z have been called in by these refractory engineers and so hare spent a good part ef the day discussing nattarsa flsnmlly tha attaatlsa at the aaneot is saaethlng libs this vith Keepers. So date we have ncren lost an order for 4~^r^*rg fT ` single blast itazanee atom Job at Sappers* Shay hare used ffupcrea^nd 811-0-Cel brick exclusively far all their stoves for the past 30 dT'anra years and Z an fecoilisr with their jobs for approaciaately 80 of these years, haring called on then about that length of tinea Likewise, Keepers has never encountered optarei shall plates on ary ef thair Jobs although they hare perhaps built stoves for higher temperature service than any concern in tha country* They areenere, hoaever, ef tha prctolsna others have run into in the way of shell failures end It aey he sinply good fortune that they hare not had alnilar difficulties. About Dt years ego they relined a stove for Bethlehem Steal XackauBuna Berks and this was deslgaodfor the highest stove temperatures that would ever ba ancauBfeened -- 3000 F dona tu^cretsre. Z doubt that this stove ever readied this axtrenely high tsaperotuso far man than a few cycles but the point remains that It Is still in oerrlce'hrith the one after these lb years end there has been no ruptured Shell plates. In addition* this lining was Installed in an anelsBt shall (built la about 19CB) with ship lap plates rather than welded construction* A feature of tha insulation design, however, was that #AS0 Coarat was first applied to the shell (thickness varying firos shout 1-1/2" to 1/8") to fan a perfectly cylindrical surface before application of the Stperex* Saggars built another serins ef four staves down in Chile about 5 yaora ago again lined with Superas and SU-O-Cel brick and these likewise operate at high tumeratures* Dme tecpersturcs are currently doming between 2600 and 2780 T and lias tenperetureo are running 2200 F* ^jaln there have been no ruptured shall platro or hurtled hod plates* These were brand new dulls, however, ef welded construction aad in tha foundations for earthquake conditions, the hod plate end anchors were unuonnVly naaslvn* Bo A50 Ccaoct was used on this Job* BIAST 7QSACZ ETGVSS a. i. n. i. xssrin Tnetnert toppers applied a lubricant at graphite paste to the shall plates* lepers indicates to ns that tbs "new Ingrrorml, mlnsgsl wool jsroluct" referrsd to la tbs Andarsm paper la tbs torblacn Valhsr praotloa Z bad SBtlcnaA earlier* Apparently It consists of a standard nlaarsl vool product (Earbiacn Walker la purchasing it froe Baldwin Zhret Sill) with a relative!/ this faring acaaishat slallar to the lager Etcher K T B block. To oe it sounds as though tbs product would he shoot the sane aa our H.T. Banroc with a facing. If thla la tha cam, Z can sot cooesivs at it being acceptahls for atom Insulation. In my opinion H. T. Baerou la a perfect!/ rotten product far ta^eratures above 1200 7 and Z can picture it foiling nlaerably in a atove unless of course it Is aolcyed as a thin hack up far Sopors* along the acne Uses as cur ccqpesite block caccept. As you teas, Z an struggling far s $30,000 crier frae Keepers far four large stoves at Bums Hafbcr end Z would appreciate it If you would send a (rush rush) any Bessarab data you can acowwileta on the atrwugth sad resiliency of any af tbs so called high temperature aiasml'wool products (our 8. zT Banroc Included) after exposure to temperature. toppers has been given a copy of tha 1961 Ceroaic Bulletin repert prepared by 0. S. Stool which shows the eaantous fall off in stres^th af the nlnsml wool block after exposure to bmperature but anything Z ean do to augaeut thla Infomatlon will be appreciated. While Z doubt that Kcppers will seriously consider any alneral wool block for tha Buna Barber Job, any special service Z can offer at this tins will react to ay advantage In tha placearot of thla job. My competition for the JCb is the Z780 block as you know but so fSr this concern dose not seen to bo offering any concrete or new Ideas. Too final thoughts. (1) I think we should increase the published tap. liadt at Ekgsrex to 2000 7. The U* S. Steel report olaases it as being suitable far 2000 7 but we still show a Unit of 1900 7. This places us at a disadvantage when eaBQetlng with Z7-20, Careytesp 2000 and Keylo 2000. (2) When you get around to aending tha carton of Composite block to U. S. Steal research sobs ens should coos to Pittsburgh to offer sane gnvsagw* to then in establishing a test procedure. We certainly don't want tboa to conduct s test tbs saas way they test standard block Insulations by reccsdlng properties after exposure to snaking boats. A lo^ed hot face panel test would soon to as to be In order. Should you deria* to sake the trip you night also wish to discuss natters in detail with aaae Kcppers people sod exchange sane infarautiac. C. S. Qrlaehm SUPEUEX