Commodity: ASTM A519 SAE1045 seamless roller burnished cylinder tube

Standard specification and steel grade: ASTM A519 SAE1020, SAE1026,SAE1045,SAE1541,SAE4130,SAE4140,SAE4145, DIN2391-2 ST52,ST52.3, ST52.4, EN10305-1 E355,E410,E470,C45E,25CrMo4,42CrMo4, 27SiMn, etc.

Size range:60mm*50mm-325mm*300mm

Manufacture method: cold rolled, hydraulic cold drawn

Delivery condition: +SR, +A, +N

Internal surface treatment: skiving&roller burnishing, honing

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

ID tolerance: H8 or H9.

Packing: in bundles tied with steel strips. Internal and external oil coating. End plastic caps. External packing by PVC bags and knit bags.

Based on the facilities we have, the following services are available:

1. External surface machining

2. Machining as per technical drawing

3. External surface polishing

4. Honing

5. Deep hole boring

6. skiving&roller burnishing

7. Welding

We are specialized manufacturer of hydraulic cold drawn mechanical tubings, precision tubes,cylinder tubes as well as machining service provider. 

1. Customized machining(machining as per design or drawing is available). 

2. Third party inspection is welcome.

3. Warranty&guarantee: 6 months after shipment of cargo.