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DIN2391 ST37.4 ST52 S45C Honed Cylinder

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DIN2391 ST37.4 ST52 S45C Honed Cylinder

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Brand Name :	TORICH
Model Number :	EN10305
Certification :	ISO9001
Price :	USD1000-1500
Payment Terms :	L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability :	3000 Tons per Month
Delivery Time :	45-50 work days

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DIN2391 ST37.4 ST52 S45C Honed Cylinder

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
DIN2391 ST37.4 ST52 S45C Honed Cylinder

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.

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