Document peNmqdeB6g5a2JZ95nddg0jBj

Johns-Manville FINISHED PRODUCT SPECIFICATION PRODUCT: SUPERS FURNACE BLOCKS (PUIN) SUFEBHC FURNACE BLOCK (SHXAT1S) V. QUALITY REQUIREMENTS r DIVISION SPEC NO. PAGE NO. rs------ 432-4 __________ Hoter Values determined on Superex Furnace Block (Plain) except as noted* Density (lbs/cu ft) Desired hfaximum Ifaximum - Modulus of Rupture (nei) 2a 2n IND. INS. DEPT I Minimum -- 60 Abrasion Loss (nercest) 1. 10 min. 2. 20 min. - 40 n*r4wnm - 70 maximum Birdnews (mjft. by Plastoaetar Plain As Received Silicate* 0.75 Cavg. 5 samples) 0*4 msx. (avg. 5 samples) 0.5 max. (individual) E. Change efter BmMss 1. Hardness (4 brs. at 1900F) - 0.9 m.m, mmrlmim 2. ' loss in Weight (24 fars. at 1900F) 1056 maximum F. ^Twwr Shrinkage (percent) (Tested on Dnsilicated Block) Z 1. After 24 hrs. at 190CF 1.556 average 2,0% maximum Q. Magnesia Content - 6% optimum VI. PACKAODPt Cases or cartons. Cases when sawdust is used. Xrter Trapezoidal Blocks for American Brake Shoe (So. (4* thick x 6* x 5-1/8*) shall be packaged 12 pcs. per 11-5/8" x 12-1/2* x 36-1/4" carton. For additional packaging information consult Packaging Specification Magnesia and Superex 432-5. i y INDICATES Dr.enu Reduction in shrinkage maximum CHANGE ~RtA50N; AUTHORITY r> FOR CHANGE Interim Agreement to Product Proposal 011-1C27 SUPERSEDES: DIR. Q-C. MGR. O.C. SUPR. Q-C. Page 4 esme specification issued ________ _____ V PROD. PLHT. RES. SUPT. FN. LAB. C.E. EJ, Ernst Briggs 5/11/59 A. Pocius 8 date | issued ffiTUBN-Tfr Fll F ROOM ohifcv