"NSN IS USED TO PURCHASE A MINIMUM OF 1 CONTAINER TO A MAXIMUM OF 19 CONTAINERS;(WC 12CO) 33NI 9CR 3.5FE 2SI 2B 0.5C BLEND;-45 +11UM (-325 MESH +11 UM);COATINGS ARE VERY DENSE AND EFFECTIVELY RESIST WEAR BY ABRASIVE GRAINS,HARD SURFACES,PARTICLE EROSION/ABRASION AND FRETTING AT TEMPREATURES TO 1000DEG (F)"