Specifications

1.Grade :45# , 20#, Q345B, 25Mn, 16Mn 42CrMo
2.MOQ: 5Ton
3.MOQ:5MT
Wholesale price Cold Drawn Seamless Steel Pipe ST52 73*63

Wholesale price Cold Drawn Seamless Steel Pipe ST52  73*63

 About our productions:

Production Details:
Grade:	20#(CK20,AISI1020),45#(CK45,AISI1045),Q345,ST52(16Mn,Q345D), 42CrMo,25Mn (STKM13C-T),27SiMn.etc cold drawn seamless pipes
ID:	50-250mm
ID tolerance:	H8,H9
Surface roughness:	Ra 0.02—0.4μm
Final supply condition:	cold drawn and stress-relieved(BK+S)
Machining allowance:	0.5-1.5mm
Wall thickness:	10%×ID

 

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Mechanics performance:
Material	Tensile strength	Yield strength	Elongation	Hardness
CK20/20#/AISI1020	>520 N/ mm2	>375 N/mm2	>15%	>85HB
CK45/45#/AISI1045	>600 N/ mm2	>520 N/ mm2	>15%	>85HB
ST52/16Mn/Q345D	>600 N/ mm2	>520 N/ mm2	>15%	>85HB
25Mn/STKM 13C-T	>600 N/ mm2	>530 N/ mm2	>15%	>85HB

 

 

Variety :
Processing	Cylinder Diameter	Straightness	Size Accuracy	W.T/mm	Inner Bore Roughess
Cold drawn/cold rolled	ID30-250	0.3	H9-H11	±10%	0.4~1.6um
Honed tube	ID50-250	0.3	H7-H9	±10%	<0.4um

 

 

Tolerance on ID:
No.	Inside diameter (mm)	ID machining allowance (mm)
1	300-80	0.5-0.8
2	81-125	0.7-1.1
3	125-200	0.9-1.2
4	200-250	1-1.5
Other dimension can be customize

 

About our work flow:

 

  

 

 

 

About our package:

 

About our test equipment:

 

About our company:

 

antai Xinpeng Steel Pipe Co,.Ltd. is one of the best suppliers of the precision tube and hydraulic cylinder tube in North of China. Since 2002 Cold drawn machine set importing, Xinpeng become a big precision steel pipe manufacture with 500Mt month productivity in the next 12 years.

 

Products widely used in the hydraulic cylinder of the heavy machinery, Cranes, excavator, forklifts and the Petrol industry.

 

1. Hydraulic Cylinder Tube------Main products of Xinpeng,

 

Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 and 1020. We can work and get the mechanical property of the clients need and Extended the life of the hydraulic cylinder.

 

1. SRB tube ----- used in Elevator buffer and Hydraulic Cylinder .This kind tube have a better roughness inner the tube, ra0.2-0.4um and can use directly in the hydraulic cylinder tube. Range: ID 50-250mm and Length can work at most 6M.
2. Cold finished tube---- Widely Used. Processing range 30-300mm, biggest length is 11M.

Xinpeng Have passed ISo9001 verified from 2008; Each tube of ours is strictly in quality control that can assure the product quality of Xinpeng.

 

 

 

 

About our certificate: 

 

 

About our business partner:

About our deliver conditions:

1. Standard packing with plastic caps and strapped bundles.

2. Commercial length 2000~10500mm,custom lengths upon request

3. Surface protection

 

About our service:

1. Cargo track service during transporting and feedback service after cargo is loaded on board

2. Flexible terms of payment by T/T and L/C
3. Big discount for repeat customers
4. Smooth delivering procedure

 

 

Application:

hydraulic cylinder tube st52 din2391 widely used in hydraulic system with precision steel tube, injection molding machine with precision steel tube, hydraulic press with precision steel tube, shipbuilding with steel tube, EVA foaming, hydraulic machinery, hydraulic cutting machine, shoe making machinery, hydraulic equipment, high pressure tubing, hydraulic tubing, card sets of joints, pipe joints, rubber machinery, forging machinery, casting machinery, engineering machinery, automotive high pressure steel pipe concrete pump, sanitation vehicle, automobile industry, shipbuilding industry, metal processing, military industry, diesel engine, the internal combustion engine, air compressor, construction machinery, forestrymachinery, etc.

 

 

 

Why you choose us as your best choice?

• Our quality is the top five in China. Raw material is mainly from some famous refinery steel mills, such as BAO STEEL, Tianjin, and Chengdu etc, which are the best and largest raw material manufacturers in China.
• we have been through ISO9001:2008 international quality system certification.
• Warranty period for our honed tubes and chrome bars is 2 years. For some special or important customers, the period is 5 years.
• All the orders, records of production and inspection would be kept for 5 years
• High Precision:

Honed tube (Roughness of tube is 0.2μm and straightness is less than 0.15/1000), piston rod (Plating thickness is 10-100 micron. Surface roughness is 0.2μm and straightness is also less than 0.15/1000)

Product details are completely according to International Standard, chrome rod and honed tube must be cut flatly, and no chrome marks on the surface of rod. (Most of domestic mills don’t do this in order to reduce cost)

 

• Delivery time is very fast. The average delivery time is 5-30 days after confirming the orders.
• Package:banding with steel strips, braiding parcel at outside
• Conservation: Anti rust oiled coating on the inside and outside of the surface, plastic caps at both ends.

 Package