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Products we offer

Refractories for RH degasser

Refractories for RH degasser

Brand LY-RRR-DBC20 LY-RRR-RH-100 LY-RRR-DBS-HNY LY-RRR-U36RH LY-RRR-U34LM
Properties Rebonded brick Semi-rebonded MgO-Cr2O3 brick Semi-rebonded MgO-Cr2O3 brick Direct-bonded MgO-Cr2O3 brick Direct-bonded MgO-Cr2O3 brick
Use Lower vessel wall Lower  vessel wall Lower /Upper vessel wall snorkel  snorkel Lower vessel wall (upper) 
Chemical composition(%) MgO 65 56 57 64 57
Cr2O3 24 27 23 15 18
Bulk density 3.28 3.29 3.25 3.15 3.15
Apparent porosity(%) 14 13.8 14.5 15 15
Cold Crushing Strength(MPa) 80 80 60 60 60
Brand LY-CFC-ASP-SN3 LY-G-MR100ST
Grain composition(%) Al2O3 92 86
MgO 5
Cold Crushing Strength(MPa) 1.2mm≦ 47 19
0.09mm≧ 29 33
Cold Crushing Strength(MPa) 110℃×24h 45
1500℃×3h 36
Linear change (%) 1500℃×3h 2.85

LMM YOTAI PRODUCT

LMM TOTAI offer a complete product and service portfolio for all steelmaking processes.
From basic and non-basic bricks and mixes, slide gate plates, isostatic products and prefab components to special machinery, mechanisms and repair systems.

Our Clients Give The Best Feedback

UKRAINIAN CUSTOMERS
UKRAINIAN CUSTOMERS
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The MgO-C bricks which used in EAF has a good performance in 75 furnaces, we are so satificated with the using performance of the bricks from LMM YOTAI
	 EGYPT A CUSTOMERS
EGYPT A CUSTOMERS
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We improved the bricks formula and specification accoridng to our experience, the final using performance doubled compared with their previous specification.
	 EGYPT B CUSTOMERS
EGYPT B CUSTOMERS
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In the ladle we have been using high alumina bricks with a performance of 50 heats. After the improved design of LMM YOTAI engineers, we use magnesia carbon bricks instead of high alumina bricks, and the performance reaches 60 furnaces and is still running.
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LMM YOTAI established in 2007. Our production technology comes from Japanese Yotai. As an experienced and international player in the refractories industry. We have succeeded in expanding both the breadth of its product range and the depth of its services. From raw material selection, refractory portofio & optimization, installation & services & recycle of used refractories on site to further reduce client’s Opex & Capex in refractory consumption per ton steel output, meanwhile improve product quality of client.

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