DIN 2391 St52 BKS Honed and SRB Precision Seamless Steel Tube for Hydraulic
ABOUT OUR COMAPANY --
we are the top 5 manufacture of precision seamless steel tube in China ,we have passed ISO 9001 verified certification ,our company mainly produces various specifications cold finished steel tube , which are widely used in hydraulic cylinder ,automobile ,oil drillling ,textil machinery ,engineering machinery ,and so on . if you are interested in our product welcome to our company to visiting and negotiate .
ABOUT OUR PRODUCT
Product Item | DIN 2391 st52 BKS honed and SRB precision seamless steel tube for hydraulic |
Outer Diameter | 30mm~250mm |
Wall Thickness | 2mm~30mm |
Material Grade | 10#-45#, 16Mn, Q195-Q345, ST35-ST52, STB35-STB42, 20#, 45#, 16Mn, Q345, ST35, St45, St52, St52.4, STB42, 16Mn,St52,10#-45#,ST35-ST52 |
Standard | ASTM, DIN, ASTM A1020-2002, DIN 2391 |
Application | Hydraulic Pipe, Hydraulic cylinder, automobile, oil drilling, textile machinery |
Certificate | ISO9001:2008 |
Process Method | Cold Drawn/ Cold Rolled |
Surface Finish | Annealed, Pickled |
Package | According to the customer’s requirement |
Delivery Time | 10days more or according to the customer’s requirement |
Price Item | FOB CIF EXW |
Payment | T/T(30% in advance, 70% against the BL Copy) and L/C at sight or as negotiation |
ID tolerance | H8,H9b H10 or as customized |
Surface roughness | Ra0.2~0.8µm |
Finally supply condition | BK BKS BKW NBK GBK |
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 | ||
ABOUT OUT PROCESSING

ABOUT OUR SERICES
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.
PACKAGING AND SHIPPING
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
1.100% 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. |
ABOUT OUR CERTIFICATE

Send Inquiry to This Supplier
You May Also Like
-
Wear Proof Precision Size Tubes, S31653 & 1.4406 Ferritic Stainless Steel Superheater TubesNegotiableMOQ: 1 Kilogram
-
Pure Iron Precision Drawn Tube With High Dimensional Accuracy for Custom Machine Tool ApplicationsNegotiableMOQ: 1 Ton
-
Inconel 625 Stainless Steel Tube High-Temperature Nickel AlloyUS$ 800 - 1100MOQ: 1 Meter
-
Advanced Food Packing Machine With Touch Screen Control for User-Friendly OperationUS$ 76.5 - 80MOQ: 10 Combos
-
ASTM A312 Tp 304h High Temperature and Corrosion Resistant Seamless and Welded Stainless Steel PipeNegotiableMOQ: 1 Ton
-
Hot Selling Excellent Quality DN8-DN325 Stainless Steel PipesNegotiableMOQ: 1
-
Precision Casting Stainless Steel Y-teeUS$ 0.1 - 0.1MOQ: 100 Pieces
-
Metal Chrome 15*30 Oval TubeNegotiableMOQ: 2000 Pieces
-
Professional Ductile Iron Pipe FactoryUS$ 1 - 100MOQ: 1 Piece
-
30*30mm Double Holes Square Brushed Metal Slot Tube for Store DisplayNegotiableMOQ: 1000 Pieces











