... 1%2) Content of main crystal phase of cordierite: ≥90%3) Compression strength under normal temperature: direction A ≥20MPa, directionB ... ,420oC6) Flame resistance: >1,600oC7) Thermal expansion coefficient: ≤1.3 x 10-6/oC8) Thermal shock resistance: no crack under ... 148 x 84 x 152.4mm, Ø144.8 x 81.3 x 152.4mm, Ø127 x 63.5 x 152. ... x 115mm, 119.5 x 99.5 x 115mm, 122.3 x 104.4 x 80mm4) Note: the products of ...