Commodity: EN 10305-1 E355 burnished hydraulic cylinder tube

Standard specification and steel grade:EN 10305-1 E355,C45E,25CrMo4,42CrMo4,DIN2391-2 ST52,ASTM A519 SAE1020,SAE1026,SAE1045,SAE4130,SAE4140,etc.

Manufacture method: Hydraulic cold drawn

Delivery condition: BK(+C). BKW(+LC),BKS(+SR),GBK(+A), NBK(+N).

Internal surface treating: honing, skiving&roller burnishing

Size range: 60mm*50mm-325mm*250mm

OD tolerance: as per DIN2391-1 or EN10305-1

ID tolerance: H7,H8,H9,H10

W.T tolerance(Eccentricity): +/-5%

Roughness of internal surface: 0.25um max for skived&roller burnished tubes, 0.35um max for honed tubes.

Packing: in bundles tied with steel strips. Oil coating. End plastic caps. 

Shipping: effected by containers on FCL basis.

Based on our current facilities,the following services are available:

1. Honing

2. SKiving&roller burnishing

3. Deep hole drilling

4. Milling

5. Grinding

6. Machining as per drawing

7. Polishing

We are ISO9001-2008 certified manufacturer of precision tubes,cylinder tubes,and cylinder barrels including:

1. Hydraulic cold drawn seamless tubes suitable for honing: 40*30-325*300

2. Honed or skived&roller burnished tubes: 60*50-325*250

3. Hydraulic cylinder barrel: ID of 50mm-250mm,Length of 2800mm max.

Payment method: we accept payment methods like T/T,L/C,D/P

Trade term: FOB,CFR,CIF,DAP.

Invoicing: based on actual weight or theoretical weight at the option of buyer.

Third party inspection before shipment is welcome.

Warranty: 1 year after shipment of tubes.