Hydraulic Cylinder St52.3 Cold rolled Seamless steel pipe and tube

$1,150.00 - $1,280.00
Min. Order
5 Metric Tons
Company Information

Yantai Xinpeng Steel Pipe Co., Ltd.

CN Manufacturer
Response Time
Response Rate:
US$ 30,000+
7 Years Paid Supplier Gold Supplier Onsite Check Trade Assurance
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Quick Details

Port: Yantai/Qingdao
Payment Terms: L/C,T/T
Supply Ability: 500 Metric Ton/Metric Tons per Month
Standard2: API 5L,ASTM A1020-2002,DIN 1626,DIN 2391,DIN 17175,GB 5310-1995,GB/T8163,GB/T3639,JIS G3455-2005
Grade Group: 10#-45#,16Mn,Q195-Q345,ST35-ST52,STB35-STB42,STPG42
Grade: 20#,45#,16Mn,Q345,St52,St52.4,STB42,STPG42
Thickness: 3 - 30 mm
Section Shape: Round
Outer Diameter(Round): 60 - 300 mm
Place of Origin: Shandong China
Application: Hydraulic Pipe
Technique: Cold Drawn
Certification: ISO 9001 2008
Surface Treatment: According to the custome&#39;s need
Alloy Or Not: Non-alloy
Secondary Or Not: Non-secondary
Grade: 20#,16Mn,St52,10#-45#,ST35-ST52
Supply Condition: Bk BKS BKW GBk NBK
Id roughness: ra0.2-ra3.2 all available
Packaging Detail: Banding with steel strips, braiding parcel at outside Or As the clients&#39; request

Hydraulic Cylinder St52.3 Cold rolled Seamless steel pipe and tube


Company Information


Yantai 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.


SRB tube ----- used in Elevatorbuffer 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.


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.

 Xinpeng also work on the Mild Seamless tube , as API oil and gas tube.  fluid steel tube, structure pipe, and so on



Product Description


The product have high size accuracy , good inner and outer surface roughness properties.


precision tube application:

1.the damping pipe for the motor

2.the cylinder of the moptor absorbers


4.the pipe for anti-ash mask

5.the cylinder of car absorbers

6.other hydraulic pressure damping product.



OD 33mm - 250mm(1"~16") with thickness of 3~30mm


GB/T8162,GB/T8163 and DIN/JIS/ASTM standard

a. DIN Standard  


45#(DIN CK45),16mn(ST52.4) etc.

b. JIS Standard

10#(STPG38,STS38,STB30,STB33,Stb35), 20#(STPG42,STB42,STS42,JIS S20C),

45#(JIS S45C), 16mn(STS49,STPT49) etc.

c. ASTM/AISI Standard

10#(ASTM a106/53 Gr.B,A192,A179-C),

20#(ASTM A106/53 Gr.B, A178-C,A210-A-1,A315-B,AISI1020),

45#(AISI1045), 16mn(ASTM A210-C) etc.


boiler use,water transport, building, machinery, traffic, aviation, oil development etc.  hydraulic cylinder


Paint Varnish Coating , Plastic Caps and mark on the pipe

payment term

T/T or L/C at sight.


cold drawning, hot rolling or hot expanding. honed and Srb

Min order

5tons, more quantity price will be lower.


according to customer's request

If you have any questions, please do not hesitate to let us know, thanks!





DIN2391, DIN2445, EN10305, GB/T 3639, GB 8713


ST35(E235), ST37, ST24(E255), ST52(E355), 10#, 20#, 35#, 45#





Surface Treatment

bare, varnished, oiled, anti-corrosion coating as request Polished (ra0.8-1.6um)


1. bundle packing

2. marking as per customer's requests

3. paint on the pipe as per customer request

4. pipe caps as customer request

Condition of Delivery

1. NBK(+N)

after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium

2. GBK(+A)

after cold forming, annealing in non oxidizing medium protective gas

3. BK(+C)

the final heat treatment after cold forming, therefore small steel pipe plastically, the plastically degree does not guarantee

4. BKW(+LC)

after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring)

5. BKS(+SR)

have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing again


Our Process


Xinpeng Have passed ISo9001 2008 verified .



Packaging & Shipping

1.Tubes will be tied in bundles by steel strips, Internal and external oil coating, and end plastic caps.

External packing by knit bags.

2. Wooden package

3. buddle package directly ( mild seamless)

all with rust oil protected

4. Shipment time: according to customer's request , usually about 30 Days. packaging&delicery

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 0.3mm/1000mm), Product details are completely according to International Standard, (Most of domestic mills don’t do this in order to reduce cost)

  • Delivery time is very fast. The average delivery time is about 30 days after confirming the orders.


Our Services


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

2. Flexible terms of payment by

3. Big discount for repeat customers

4. Smooth delivering procedure

5. Payment Terms: T/T, L/C And so on.





Transportation: by sea
20' FCL (means the length than 5,800mm)
40' FCL (means the length than 11,800mm)
Bulk cargo (means the quantity is more than 200MT)
With regards to other length or quantity, it should be taken by clients themselves
Delivery time: 10-30days to the dispatch port after receipt of T/T or L/C at sight
Optional: wooden box; caps; vanished coating. Clients should pay for this fee
Payment: T/T or L/C at sight, T/T 100% in advance (the order less than 30MT)
Price item: FOB, CFR, CNF, C&F, CIF
Origin: China
Third party inspection: BV, SGS, Lloyds. The Expense need to stand by clients.


Xinpeng Factory View ( with this photos, just like you have been to Xinpeng exactly)


Raw Material warehouse ( Different steel Grade with Different color)


Xinpeng Workplate


Xinpeng difference kind mold


Xinpeng meeting room


Xinpeng Office



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, forestry machinery, etc.


Any need , please contact us freely !