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Help CenterManufacturing Precision Seamless Honed Steel Tube
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ABOUT OUR COMPANY
we are the top 5manufacture of precision seamless steel tube in China ,our company mainly produes various specification cold finished steel tube which are widely used in hydraulic cylinder ,automobile ,oil driling ,textil machinery ,engineering machinery ,and so on ,and we have passed ISO 900012008 verified certification ,so welcome to our company to visiting and negotiate business .
Commodity |
manufacturing precision seamless honed steel tube |
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Items |
Seamless steel tube |
Cold drawn/rolled tube |
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Length |
According to the customer’s need |
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Tolerance |
H8 H9,H10 or as customer’s need |
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Surface roughness |
Ra0.2-0.8µm |
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Standard |
Round pipe: GB/8163-2008, GB 8162-2008, ASTM A 106, DIN2391, 1 ASTMA519 |
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Grade |
Q345,10#-45#,ST35-ST52,16Mm |
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Application |
Hydraulic cylinder, automobile, oil drilling, textile machinery,etc. |
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Inspection |
With hydraulic testing, eddy current and infrared test. |
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Normal Seaworthy Packing
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1. Bundle packing. 2. Beveled end or plain end or varnished as per buyer's requests. 3. Marking: as per customer's requests. 4. Painting varnish coating on the pipe. 5. Plastic caps at ends or according to your request. |
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Delivery Time |
Less than 25days after the advanced payment |
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Payment Terms |
T/T or L/C |
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Outer diameter |
30-250mm |
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Finally condition |
BK BKS BKW NBK GBK |
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Mechanics performance: | ||||
Material |
Tensile strength |
Yield strength |
Elongation |
Hardness |
CK20/20#/AISI1020 |
>520 N/ mm2 |
>375 N/mm2 |
>15% |
>85HB |
CK45/45#/AISI1045 |
>600 N/ mm2 |
>520 N/ mm2 |
>15% |
>85HB |
ST52/16Mn/Q345D |
>600 N/ mm2 |
>520 N/ mm2 |
>15% |
>85HB |
25Mn/STKM 13C-T |
>600 N/ mm2 |
>530 N/ mm2 |
>15% |
>85HB |
Variety : | |||||
Processing |
Cylinder |
Straightness |
Size |
W.T/mm |
Inner Bore Roughess |
Cold drawn/cold rolled |
ID30-250 |
0.3 |
H9-H11 |
±10% |
0.4~1.6um |
Honed tube |
ID50-250 |
0.3 |
H7-H9 |
±10% |
<0.4um |
Tolerance on ID: | ||
No. |
Inside diameter |
ID machining allowance |
1 |
300-80 |
0.5-0.8 |
2 |
81-125 |
0.7-1.1 |
3 |
125-200 |
0.9-1.2 |
4 |
200-250 |
1-1.5 |
Other dimension can be customize | ||
(1)Delivery time: In 20 days or according to client's requires
(2)Trade terms: EXW/FOB/CIF etc
(3)Payments: T/T or L/C or according to client's requires
(4)Port: Yantai or Qingdao
(5)MOQ: 5 metric tons or at customer's demands
(6)Packing: we usually bundle with steel strips ,branding parcel or wooden box outside ,or according to the customer’s acquirement
1. Cargo track service during transporting and feedback service after cargo is loaded on board
2. Flexible terms of payment by
3. Big discount for repeat customers
4. Smooth delivering procedure
5. Payment Terms: T/T , L/C And so on.
certificate
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