TORICH EN10305 E355 ST52 H8 Honed Tube
Product Details
TORICH Honed Tube
,EN10305 Honed Tube
,H8 Honed Tube
Product Description
TORICH Hydraulic Cylinder Tube E355 ST52 H8 Honed Tube
Manufacture Method:
Cold drawn, hot rolled+deep hole bored
Certification:
ISO9001, SGS,
Material:
Carbon steel,alloy steel, stainless steel
Standard&Grade:
DIN2391-2 ST52,EN10305-1 E355,C45E,25CrMo4,42CrMo4, CK45,E410, E470,ASTM A519 SAE1020,SAE1026,SAE1045,SAE1518,SAE1541, SAE4130,SAE4140,SAE4145,SAE4340,etc.
Size Range:
ID of 300mm max for cold drawing,
ID of 500mm for deep hole boring
ID Tolerance:
ISO H8
End finish:
Plain ends with square cuts,free of burrs
Bore Roughness:
Ra0.30um max for honed tubes, Ra0.25um Max for Skived&roller burnished tubes
End finish:
Plain ends with square cuts,free of burrs
Usage:
Hydraulic cylinder, Pneumatic Cylinder
Product Feature:
1.High precision (can cut the costs of machining) .
2.Excellent surface finish
3.Good mechanical performance (Aneal ,Bright Anealing,QT heatment on steel tubes to reach customers' Mechanical requsts. )
1.+C /BK
No heat treatment after final cold drawing process.
2.+LC/BKW
After the final heat treatment there's a suitable drawing pass.
3.+SA/BKS
After the final cold drawing process there's a stress relief heat treatment in controlled atmosphere.
4.+A/GBK
After the cold drawing process the tubes are annealed in a controlled atmosphere.
5.+N/NBK
After the final cold drawing operation the tubes are normalized in a controlled atmosphere.
ID Honing
The honing process makes :
1.Smooth surface finishes inside bores
2.Hold precise tolerances on bore diameters
ID H7 H8 H9
ID roughness 0.2-0.8μm
ID max 630mm
Roller Burnish+ Skiving
Two thin chips are cut at high feed rate while the tool passes through the workpiece.producing super finish surface,with a bore precise tolerance .
ID H7 H8 H9
ID roughness 0.2-0.8μm
ID max 630mm
QUALITY CONTROL
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking.
100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.
Packing Details : In bundles or in wooden boxes packaging of honed tube
Delivery Details : 30-60days
In hexagonal bundles packaging with woven
In wooden boxes.
Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples of honed tube ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
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