Fireclay brick for coke oven-Refractory materials for coke ovens-Silica Brick,Fireclay Brick,Fireclay checker brick-SHANDONG LUQIAO NEW MATERIAL CORP.

Fireclay brick for coke oven

Fireclay brick for coke oven

PRODUCT SPECIFICATIONS

GB STANDARDS

Items	Assured Value
Items	JNZ-35	BGZ-65
ω(SiO₂) / %	----	≥65
ω(Al2O₃) / %	≥35	＜30
ω(K₂O+Na₂O) / %	≤1.0	≤1.0
Apparent porosity / %	≤24	≤24
Cold crushing strength / MPa	≥25	≥25
Refractoriness under load 0.2 MPa (T0.6)/℃	≥1350	≥1350
Permanent change in heating (1350℃x2h)/%	+0.2 -0.4	+0.2 -0.2

DIN STANDARDS

Items			KA40-1 Din Standards KA40-1	KA40-2 Din Standards KA40-2
Al₂O₃ %		μG	≥40	≥40
Al₂O₃ %		σ	1.5	1.5
Fe₂O₃ %		μG	≤2	≤2
Fe₂O₃ %		σ	0.5	0.5
Apparent porosity %		μG	≤20	≤24
Apparent porosity %		σ	2	2
Refractoriness under load 0.2 MPa ℃ T0.5		μG	1350 T_0.5	1300 T_0.5
Refractoriness under load 0.2 MPa ℃ T0.5		σ	25	25
μG （MPa）σ Xmin CCS Cold crushing strength			≥35 10 25	≥30 10 20
Creep	%Z5~25	μG	≤0.1
	%Z5~25	σ	0.03
	Z25	μG	≤0.25
	Z25	σ	0.1