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Commodity name |
Cold finished seamless steel pipe |
|
Dimension |
OD:30-250mm,WT:2-30mm |
|
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Standard: GB/T8713, GB/T3639, DIN2391, EN10305, ASTMA519, ASTMA106-2006, API 5L,etc
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1.DIN Standard |
10#(ST37-2,ST35-8), 20#(ST42,ST45-4/8), 45#(DIN CK45), 16mn(ST52.4) etc.
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2.JIS standard: |
10#(STPG38,STS38,STB30,STB33,Stb35), 20#(STPG42,STB42,STS42,JIS S20C), 45#(JIS S45C), 16mn(STS49,STPT49) etc. |
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3.ASTM/AISI standard |
10#(ASTM a106/53 Gr.B,A192,A179-C), 20#(ASTM A106/53 Gr.B, A178-C,A210-A-1, A315-B,AISI1020), 45#(AISI1045), 16mn(ASTM A210-C) etc. |
|
Technique |
Cold drawing, cold rolling, hot rolling or hot expanding |
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Usage |
Seamless steel pipes for low and medium pressure boiler, high pressure boiler, ship-building, liquid service , petroleum cracking, chemical fertilizer equipment ,drawing-oil-equipment and structure purposes. |
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Package |
steel strip bundles, black paint coating, beveled ends or plain |
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Payment terms |
L/C or T/T(30% deposit and 70% balance against B/L copy) |
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Delivery |
FOB, CIF, CFR, etc |
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Shipment |
15 working days after getting payment |
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Delivery condition:
1. NBK(+N)
after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium
2. GBK(+A)
after cold forming, annealing in non oxidizing medium protective gas
3. BK(+C)
the final heat treatment after cold forming, therefore small steel pipe plastically, the plastically degree does not guarantee
4. BKW(+LC)
after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring)
5. BKS(+SR)
have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing again
Product Process:
Our Certificate:
Company & workshop:
Yantai Xinpeng Steel Pipe Co., Ltd,established in Dec 1992, with registered capital of 5 million Yuan, we have more than 20 years experience in manufacturing and exporting steel pipe. Our company mainly produces various specifications of cold finished precision steel pipe, which are widely used in hydraulic Pneumatic cylinder for automobile, engineering machinery, textile machinery, printing machinery, oil drilling and other field.
Our company are equipped with JLB250T hydraulic cold drawn set,LED120 cold rolling set, annealing surface, strong honed machine, polishing machine, lathe, saws CNC skived and roller burnished machine, kinds of testing machine. Strictly comply with ISO9001 System, assure the best quality of the products.
Application:
1.Hydraulic Cylinder Tube---Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT, ST52, CK45 and 1020. We can work and get the mechanical property of the clients need and extended the life of the hydraulic cylinder.
2.SRB tube ----- Used in Elevator,buffer and Hydraulic Cylinder .This kind tube have a better roughness inner the tube, ra0.2-0.4um and can use directly in the hydraulic cylinder tube.
Range: ID 50-250mm and Length can work at most 6M.
3.Cold finished tube---- Widely Used. Processing range 30-300mm, biggest length is 11m.
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