SNREF Refractory Non Swirling Tundish Nozzle For Steel Molten Flow Control Speed
Shandong Sinorefractory New Materials Co.,Ltd manufactures a comprehensive range of high performance Zirconia Tundish Metering Nozzles,
used mainly in the continuous casting of steel billets.
Tundish Nozzles usually comprise a zirconia inner nozzle (often referred to as a "zirconia insert") with a lower grade outer body such as Alumina Bauxite, often be called Outer Alumina Carbon material.
TUNDISH NOZZLE used for the continuous casting of steel.
SNREF Products used in Tundish can be offered to you as follow:
Tundish metering nozzle
Non swirling tundish nozzle
Tundish upper nozzle
Tundish lower nozzle
Tundish slide plate
Quick-exchange tundish nozzle
Ladle shroud
Subentry nozzle/ submerged entry nozzle
Monoblock stopper
This product is suitable for continuous cast tundish open cast steel.
The zirconium insert is made of high-purity zirconia, which is formed by high-pressure molding and sintering at high temperature.
The outer is made of corundum and high-quality aluminum vanadium.
It is formed by high pressure molding and baked at low temperature.
The two are bonded with corundum mud, and the product's corrosion resistance and thermal shock stability have reached the domestic advanced level, which can fully meet the needs of various billet continuous casting.


1. Tundish Nozzle
Chemical and Physical Properties |
LQTN-
AlC75 |
LQTN-
AlC80 |
LQTN-
Al75 |
LQTN-
Zr96 |
LQTN-
Zr65 |
Al2O3 ≥ % |
75 |
80 |
94 |
-85 |
- |
ZrO2 ≥ % |
- |
- |
- |
(Insert)
92-96 |
65 |
C ≥ % |
4 |
4 |
- |
- |
- |
Apparent porosity ≤ |
8 |
7 |
15 |
9 |
20 |
Bulk density g/cm3 ≥ |
2.90 |
2.95 |
2.95 |
3.05 |
3.5 |
Compressive strength (MPa) ≥ |
60 |
60 |
120 |
80 |
- |
High temperature bending
strength (MPa) (1400*0.5h) MPa ; ≥ |
6 |
7 |
15 |
20 |
- |
2. Zirconia insert
Chemical and Physical Properties |
LQZr60 |
LQZr70 |
LQZr80 |
LQZr85 |
LQZr95 |
ZrO2 ≥ % |
60 |
70 |
80 |
90 |
95 |
Apparent porosity ≤ |
21 |
20 |
18 |
15 |
6 |
Bulk density g/cm3 ≥ |
3.70 |
3.90 |
4.0 |
4.35 |
5.2 |
Refractories ≥ C |
1800 |
1800 |
1850 |
1900 |
1900 |
Related Products:
1.Collector Nozzles
Adopting tabular corundum, white corundum, mullite as main materials.Choosing good anti-oxidation flake graphite as carbon source, adding aluminum metal powder, silicon metal powder and other additives to increase high temperature performance.Using phenolic resin as bonding which obtains high solid content and high carbon residue.Integrated with steel can to forming or shaping separately under high temperature.
With features of good volume stability, excellent thermal shock resistance, high temperature crushing resistance, anti-erosion, low rate of bore expanding, long service life and wide range application.
2.Ladle Nozzles
Adopting tabular corundum, white corundum, silicon carbide, metal aluminium, high quality magnesite as main materials. Choosing good anti-oxidation flake graphite as carbon source, adding small amount antioxidant to increase oxidation resistance. Using phenolic resin as bonding which obtains high solid content and high carbon residue.After forming and shaping, process pitch impregnation according to using conditions.
With features of good thermal shock resistance, high temperature strength, anti-erosion, anti-scouring, long service life and wide range application.
3.Ladle Well Block
Adopting tabular corundum, white corundum, mullite as main materials. Choosing good anti oxidation flake graphite as carbon source, adding aluminum metal powder, silicon metal powder and other additives to increase high temperature performance. Using phenolic resin as bonding which obtains high solid content and high carbon residue.Integrated with steel can to forming or shaping separately under high temperature.

Tundish upper nozzle It is located within the tundish lining and conveys steel to the controlling exchangeable nozzle, which determines the steel flow. The stationary nozzle must be capable of withstanding long sequence times. SNREF Upper nozzle that incorporates a ultra-high insert. The insert provides excellent erosion resistance and can provide extended casting sequence times. The lower surface of the stationary nozzle is ground to exacting tolerances to ensure maximum surface contact between the two nozzle components. Tundish lower nozzle It is located within an assembly that is fixed to the bottom of the tundish.The design of the exchangeable nozzle can vary according to the system manufacturer. We supplying a range of zirconia inserts and composite nozzle designs for the exchangeable metering of steel. Zirconia inserts can be supplied for on-site assembly into metallic holding blocks where cementing, grinding, size banding and on site drying are required prior to use. It was manufactured by both cast process of fine grained alumina method or presse process.


Shandong Sinorefractory New Materials Co.,Ltd (SinoRefractory) has been focusing on international marketing of flow control refractories in iron and steel industry for 17 years.
SinoRefractory is the second generation of refractories export enterprise developed out of EMEI Group.Supported by one of China's largest production bases in functional refractory materials.
Through years of development in the field of exporting top quality refractories to worldwide markets,SinoRefractory aims at researching,producing,marketing and exporting high standard Ladle slide gate plate,Ladle Nozzles,Well blocks,Purging plugs,Nozzle stuffing sand,Refractory castables, Slide gate Mechanisms etc.
Up to now,SinoRefractory has supplied high quality refractory products and services to nearly 70 top-hundred global steel enterprises.
SinoRefractory will always put clients'interest in the first place,striving to provide a wide range of services,including technical solution,pre-sales support,after-sales services,installation team support,professional know-how according to the changing of steelmaking condition,etc.
We are not only selling products,we are more focused on supporting,developing and growing together with clients.

We can provide comprehensive transportation solutions, including sea freight, express delivery, and air freight.
In terms of sea freight, we can provide reliable transportation for your goods. Whether it's full container load (FCL) or less than container load (LCL), our professional team carefully handles every step of the process, from booking space, arranging correct loading and bundling of goods at the port of origin, to ensuring seamless customs clearance and timely delivery at the destination port.
In terms of express delivery, our express service covers door-to-door pickup and delivery, especially suitable for urgent and small packages that need to arrive quickly and on time.
In terms of air freight, This provides a quick option for transporting your goods.
No matter which mode of transportation you choose, our commitment is to provide you with the highest quality service and ensure the efficient and safe transportation of your goods.

1. Professional in Technical Support
We have over 100 experienced technical engineers ranging from slide gates to purge plug and NFC, capable of providing comprehensive advice or solution from pre-sales to after-sales procedures.
2.Efficient in Communication
Professional and effective sales team will lower the communication cost to minimum. Getting what you need in shortest time and Supplying what you will need precisely.
3.Strict in Ouality Control
Advanced testing instruments have been set to further increase standards on pre-factory testing. We are striving to reduce the error rate below 0.01%. Making sure each product arrives at customers'warehouse in perfect condition.
4.Forty years production experience
Focusing on producing high quality slide gate refractories ever since 1983, with over 17 years experience in international trading, Fully familiar with complete procedure of exporting and importing.
5.Experienced in after-sale services
The deal is not end of our cooperation, it's just the beginning.Our services just start from cooperation, we will follow the performance and feedback of each delivery.
6.On-Site Follow up
Our team "sales+engineer" is available for on-site follow up in worldwide steel plants. With a direct visit on site, we can offer best solution to steelmakers for saving budge per ton steel.
Q 1:How can I receive best materials or products for my application ?
A: Please send drawing and steelmaking condition to us for evaluation.
Our technical team will recommend suitable formula and workmanship,
our sales team will offer most competitive prices accordingly.
Our "Technical+Sales" team will work on to provide optimum product recommendation for clients.
Q 2:Is the recommended life time guaranteed by SNREF ?
A: Taking into comprehensive consideration base on steelmaking situation and SNREF's product experience, we'll
offer recommended life time of products.
However SNREF doesn't guarantee the life time.
For first time cooperation, SNREF recommends a trial order for testing.
Trial order offers us chance to adjust formula base on actual performance.
SNREF will offer best technical support and expedited delivery for trial order.
Q 3:Can SNREF's refractories work well for my system from other brands?
A: With years of experience in exporting. SNREF has successfully provided refractory materials to a wide range of overseas markets including Asia, North Amercia, South America, Middle East, CIS area etc.
We are experienced with various types of systems.
SNREF is capable to offer consistent and high performance refractory materials to clients worldwide.