DIN2391 ST37.4 ST52 S45C Honed Cylinder
Brand Name:TORICH
Certification:ISO9001
Model Number:EN10305
Minimum Order Quantity:5Tons
Delivery Time:45-50 work days
Payment Terms:L/C, D/A, D/P, T/T, Western Union, MoneyGram
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Location:
Ningbo Zhejiang China
Address:
Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
Supplier`s last login times:
within 42 hours
Product Details
Company Profile
Product Details
TORICH Shock Absorber Automobile Parts Using DIN2391 ST37.4 ST52 S45C Honed Tubing Cylinder
Products Description:
The honed cylinder tube is a high-precision steel tube material that is processed by cold or hot rolled.
Beacuse the inside and outside wall without oxidation layer, so it can under high pressure, no leakage,
high precision, high finish, cold bending deformation, flaring, flattening without cracks a bit, it is mainly used to
produce pneumatic or hydraulic components products, such as a cylinder or cylinder, it can also be seamless tube.
The chemical constituents of the cylinder are carbon C, silicon Si, manganese Mn, sulfur S, P and Cr.
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
Manufacture Method:
Cold drawn, hot rolled+deep hole bored
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
Certification:
ISO9001, SGS,
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. )
Dilivery Condition:
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.
The Advantage of Honed Cylinder Tube:
1 To improve surface roughness, roughness can almost reach Ra. M or so.
2 To correct the roundness, the ellipticity is less than 0.01 mm.
3 To improve the surface hardness, eliminate the stress deformation, hardness HV 4 ° or higher
After processing, the residual stress layer should improve the fatigue strength by 30%.
5, improve the quality of the match, reduce wear and tear, prolong the service life of the parts,
but the processing cost of the parts decreases.
Products Show
Tubes Maching
ID Honing
Utilize an abrasive stone,which turns while being moved in and out
of the work piece.
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 & Delivery
Packing Details : In bundles or in wooden boxes packaging of honed
tube
Delivery Details : 30-60days
In hexagonal bundles packaging with woven
In hexagonal shaps,the tubes will be well fixed,so it can avoid the
damages when delievey .
In wooden boxes.
Solid packaging ,protecting tubes from damages much better.
In poywooden packaging,It cut the packaging costs also it can
protect tubes well
ASTM A519 Hydraulic Cylinder Alloy Steel Mechanical Honed Tubing
In bundles with end caps.well protect tubes from rust.
Carton Packing suit for the cutting length
FAQ
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.
DIN2391 ST37.4 ST52 S45C Honed Cylinder
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