42CrMo4 cold drawn hollow steel bar

Specifications

We manufacture 42CrMo4 cold drawn hollow steel bar for hydraulic cylinder application with diameter upto 325mm.

42CrMo4 cold drawn hollow steel bar is mainly used to produce piston rods for hydraulic cylinders. We manufacture various carbon steel and alloy steel cold drawn hollow steel bars with diameter upto 325mm.

Commodity:42CrMo4 cold drawn hollow steel bar

Types of rods we can manufacture and supply: solid or hollow.

Size range: 12mm - 400mm (OD), Length: 3000mm max.

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

Manufacture method: hydraulic cold drawn

Delivery condition: cold drawn, stress relieved,Q+T,hard chrome plated.

Chemical composition:

Element	C	Si	Mn	P	S	Cr	Mo
Content (%)	0.38-0.43	0.15-0.35	0.60-0.85	0.030 max	0.035 max	0.90-1.20	0.15-0.35

Further treatment:

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

 

 

FOR COLD DRWAN ROUND BARS (+C):

Size range: 60mm-325mm (Diameter), Length: 12800mm.

OD tolerance:

D<100mm	+/-0.35mm
100mm<D<200mm	+/-0.50mm
200mm<D<325mm	+/-0.75mm

Straightness:

L<3000mm	0.5mm/1000mm max
3000mm<L<5000mm	0.8mm/1000mm max
L>5000mm	1.2mm-2.0mm/1000mm max

 

FOR COLD DRAWN ROUND BARS (+SR):

Size range: 60mm-325mm (Diameter), Length: 12800mm.

OD tolerance:

D<100mm	+/-0.40mm
100mm<D<200mm	+/-0.60mm
200mm<D<325mm	+/-0.80mm

Straightness:

L<3000mm	0.5mm/1000mm max
3000mm<L<5000mm	0.8mm/1000mm max
L>5000mm	1.2mm-2.0mm/1000mm max

Packing: we will ensure seperate seaworthy packing for piston rods.  

Shipping: 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.