Commodity:CK45 carbon steel hollow bar

Size range: 12mm - 400mm (OD), Length: 12000mm max.

Material: carbon steel like CK45,S45C, alloy steel like SAE4140, 20MnV6,etc.

Manufacture method: hydraulic cold drawn, machining, deep hole boring, drilling

Delivery condition: cold drawn, stress relieved,annealed,normalized,quenched+tempered,

Chemical composition:

Further treatment:

We can manufacture and supply piston rods with hard chrome plating, external machining, internal threading,internal honing,external grinding.

External machining or grinding, internal honing, internal threading,hard chrome plating,.

We are ISO9001-2008 certified manufacturer of tubes and hollow piston rods for hydraulic cylinders and hydraulic cylinder barrels.

Payment method: 30% deposit,balance before shipment or against copy of B/L or L/C at sight.

Delivery time: within 50 days.

MOQ: 3 tons for each size.

Trade term: FOB,CFR,CIF,DAP.

Third party inspection or customer's inspection is acceptable.