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Help Center2 Inch High Precision Steel Tube for Automotive Parts
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ABOUT OUR COMPANY :
We are Yantai Xinpeng Steel Pipe Co.,Ltd
♦Professional tube manufacturer which have over 20years experience
♦High reputation in tube world benefit by competitive price, quality and service.
♦Supply all kinds of steel pipes such as:
√ hot rolled/cold drawn seamless steel pipes
√ honed and skived pipes
√ cold drawn welded tubes(DOM tubes)
♦Our Website: http://ytxinpeng.en.china.cn
our product mainly produces various specifications cold finished steel tube ,which are widely used in hydraulic cylinder ,automobile ,oil drilling ,textil machinery,engineering machinery ,and so on
ABOUT OUR PRODUCT
Commodity name |
2 inch high precision steel tube for automotive parts |
|
|
Surface Treatment |
Oiled, Galvanized, or according to the customer’s acquirement |
|
Technique |
Cold drawn & cold rolled |
|
Application |
1hydraulic cylinder |
|
2. automobile | ||
3.oil drilling | ||
4.textil machinery | ||
5. engineering machinery | ||
6. printing machinery | ||
|
Delivery Conditions |
1. BK (+C) |
No heat treatment after last cold forming process. |
2. BKW (+LC) |
After last heat treatment there is a light finishing pass (cold drawing) |
|
3. BKS (+SR) |
After the final cold forming process the tubes are stress relieve annealed. |
|
4. GBK (+A) |
After the final cold forming process the tubes are annealed in a controlled atmosphere. |
|
5. NBK (+N) |
After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere. |
|
Package |
1. Bundle Packing. |
|
2. Plain end or vanished as per customer's request. | ||
3. Wrapped in waterproof paper. | ||
4. Sackcloth with several steel strips. | ||
5. Pack in heavy tri-wall boxes. | ||
CHEMICAL COMPOSITION
|
C |
Mn |
Si |
S(Max) |
P(Max) |
CK20 |
0.17-0.24 |
0.35-0.65 |
0.17-0.37 |
0.035 |
0.035 |
CK45 |
0.42-0.5 |
0.5-0.8 |
0.17-0.37 |
0.035 |
0.035 |
St52 |
≤ 0.22 |
≤ 1.6 |
≤0.55 |
0.025 |
0.025 |
27SiMn |
0.24-0.32 |
1.1-1.4 |
1.1-1.4 |
0.035 |
0.035 |
MECHANICAL PROPERTY
Material |
Tensile strength |
Yield strength |
Elongation |
Hardness |
Ck20 |
510 σ N/mm2 |
500σsN/mm2 |
5δs% |
175HB |
Ck45 |
660 σN/mm2 |
630σsN/ mm2 |
4δs% |
207HB |
ST52 |
580σ N/mm2 |
420σsN/ mm2 |
10δs% |
190HB |
27SiMn |
840σ N/mm2 |
805σsN/ mm2 |
7.5δs% |
230HB |
ABOUT THE TOLERANCE
30 |
+0.021 0 |
+0.038 0 |
+0.052 0 |
+0.084 0 |
+0.130 0 |
±5%,±10% |
>30-50 |
+0.025 0 |
+0.039 0 |
+0.062 0 |
+0.100 0 |
+0.160 0 |
|
>50-80 |
+0.030 0 |
+0.046 0 |
+0.074 0 |
+0.120 0 |
+0.190
0 |
|
>80-120 |
+0.035 0 |
+0.054 0 |
+0.087 0 |
+0.140 0 |
+0.220 0 |
|
>120-180 |
+0.040 0 |
+0.063 0 |
+0.100 0 |
+0.160 0 |
+0.250 0 |
|
>180-250 |
+0.046
0 |
+0.072 0 |
+0.115 0 |
+0.185 0 |
+0.290 0 |
|
>250-315 |
+0.052 0 |
+0.081 0 |
+0.130 0 |
+0.210 0 |
+0.320 0 |
|
>315-400 |
+0.057 0 |
+0.089 0 |
+0.140 0 |
+0.230 0 |
+0.360 0 |
ABOUT OUR PACKAGING
(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
ABOUT OUT SERVICES
(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
ABOUT OUR PROCESSING
ABOUT OUR APPLICATION
Application |
Cold drawn or cold rolled precision seamless steel tubes for hydraulic pressure and pneumatic services. |
For Auto use,machinery use,oil cylinder tube,motorcycle shock reducer use,auto shock reducer inner cylinder,gas spring use etc. | |
|
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. |
ABOUT OUR CERTIFICATE
testing
1.100% PMI,Spectro Chemical Aanlysis Test for Raw Material |
2.100% Dimension & Visual Examination |
3. Mechanical Properties Test Include Tension Test,Flaring Test (For Seamless tube/pipe)/ Flange Test (For Welded Pipe & Tube), Hardness Test ,Reversed Flattening Test |
4.100% Hydrostatic Test or 100% NON-DESTRUCTIVE Test (ET or UT) |
5.Radiographic Test for Welded Pipe (shall be accordance with specification,or shall be as agreed upon between the purchaser and vendor) |
6.Straightness Test (optional) |
7.Roughness Test (optional) |
8.Intergranular Corrosion Test(optional) |
9.Impact Test (optional) |
10.Grain Size Determinations (optional) |
NOTES : ALL THE TESTS AND INSPECTION RESULT NEED TO BE SHOWED IN REPORTS ACCORDING TO STANDARD AND SPECIFICATION. |
Send Inquiry to This Supplier
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