EAF & converter blowing
Anssen oxygen lance pipe
Lance pipe is used for blowing in steelmaking, it is made of steel pipe with inside & outside surface calorized & ceramic coated, due to the user’ s requirement for low consumption, high purity during smelting process in EAF/BOF, Anssen succeeds in developing a high quality coating at competitive cost, it has a great advantage in anti-oxidation, anti- sulphurization, thermal resistant, anti-erosion, easy operation, its main use :
- · Blowing oxygen or other gas into EAF;
- · Injection of powder additive to adjust the steel composition;
- · Clean slag from converter ;
- · Special purpose which requires high refractoriness, anti-oxidation, anti-sulphurization, anti-erosion;
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Types
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Ceramic coated pipe
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Calorized pipe
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Calorized & ceramic coated pipe
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Thickness of calorizing layer
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Without
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OD 0.15~0.25mm
ID 0,15~0,25mm
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OD 0.15~0.25mm
ID 0,15~0,25mm
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Thickness of ceramic coating
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OD 0,25-0,60mm
ID 0,10~0,20mm
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Without
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OD 0,25-0,60mm
ID 0,10~0,20mm
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Number of layers
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3 layers
Steel pipe + ceramic coating inside and outside
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3 layers
Steel pipe + calorizing inside and outside
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5 layers
Steel pipe + ceramic coating inside and outside + calorizing inside and outside
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Pipe material
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Carbon Steel Pipe (both welded & seamless available)
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Pipe diameter
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3/4” ~ 4” according to client’ s requirement
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Connection method
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Threaded or hydraulic pressed coupling
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Our calorized ceramic lance pipes are successfully serving steel giants like Baosteel, Anshan steel, Guangzhou steel, Posco(ZJG Plant).
Chemical properties :
| Steel grade |
Standard
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C
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Mn
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Si
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Cr
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Ni
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S
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P
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20 #
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YB231－70
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0.17～0.24
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0.35～0.65
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0.17～0.35
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Max. 0.25
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Max. 0.25
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Max. 0.05
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Max. 0.04
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Mechanical properties:
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Steel grade
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Standard
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Tensile Strength
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Yield point
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Elongation
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σ b (Kg/mm2)
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σ s (Kg/mm2)
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δ s
(%)
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| 20 # | ||||
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YB231－70
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40
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25
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20
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If you are interested in our products, please feel free to contact us , we will offer you the best price and service and wish to establish a long term business relationship with you. Waiting for your early reply!