Commodity: sae4140 machined steel hollow bar

Manufacture method: hydraulic cold drawn, Machining+drilling, machining+ddep hole boring

Size range:

1. For hydraulic cold drawn hollow bar: OD upto 356mm, W.T upto 50mm, length of 12000mm max.

2. For machined hollow bar: OD upto 300mm, ID upto 250mm, Length of 3000mm max.

Material: ST52 or other carbon steel grades like CK45,S45C, alloy steel like SAE4140, 42CrMo4,20MnV6,etc.

Delivery condition:Stress relieved, annealed, normalized,quenched+tempered

Packing: Oil coating for anti-rust protection. Seaworthy export packing.

Shipping: We suggest shipment effected by containers.

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.