DIN2391 Gas Spring Carbon Honed Steel Piping

Outer Diameter	30-250mm
Wall Thickness	2-30mm
Material Grade	20# 45# 16Mn 25Mn 27SiMn E355 ST52
Package	Standard packing or as client`s request
Delivery Condition	BK/BKW/BKS/GBK/NBK
Delivery Time	Within 20-30 days after receiving downpayment or as client`s request
Trade Terms	FOB Yantai, Qingdao, or as client`s request
Payment Terms	T/T or L/C or as client`s request
Supply Ability	500 metric tons/per month

 

Our Company

Located in Yantai, our company mainly produces various specifications of cold drawn,rolled precision steel tube,hydraulic cylinder tube and SRB Tube, which are widely used in such industries as hydro-cylinder, automobile, engineering machinery, textile machinery, printing machinery, oil drilling, etc. Our company is also the distributor of several domestic well-known steel tube plants in Shandong, and mainly distributes seamless steel tubes of all kinds of materials.

What we can provide are seamless pipe, cold drawn tube, cold rolled tube, honed tube, hydraulic cylinder tube, hydraulic tube, cylinder tube, hydraulic cylinder pipe, hydraulic pipe, cylinder pipe, etc.

Our Main products

1.Seamless steel tube, seamless pipe

Widely 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 also offer ascustomized seamless steel tube.

2.cold drawn steel pipe, cold rolled steel tube, cold drawn tube, cold rolled pipe

Grade: 20#  45#  16Mn  25Mn  27SiMn  E355  ST52 CK45 S45C STKM11A

Standard: GB/T8713  GB/T3639  DIN2391  EN10305  ASTMA519

Range: 30-250mm

Length: 11m(max)

The cold process can change the thickness of tube to meet client's request and offer better mechanical property. 

 3. SRB&Honed steel tube, honed tube, skiving and roller burnishing tube

ID Tolerance: H8  H9 or as client's request

ID Roughness: RA0.4micron(max)

Length: 6m(max)

Inner roughness: Ra0.2-0.8um

Straightness: 1:1000 or customized

This process can improve the roughness of the inner tube to 0.2-0.8um and make inside tube more smooth which can be used for cylinder directly.

4.hydraulic cylinder tube, hydraulic pipe, cylinder pipe, hydraulic tube, cylinder tube

Our Process

Equipped with JLB250T hydraulic cold drawn set, LD120 cold rolling set, annealing furnace, strong honed machine, polishing machine, lathe, saws CNC skived and roller burnished machine, kinds of testing machine.

Packing&Shipping

Packing:

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

 

Shipping:

Within 20-30 days after receiving your payment or as client's request

Delivery condition

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

 

Our Certificate

Strictly according to system verified ISO9001:2008, all our products are in high quality control and tight tolerance to satisfy every client without quality problem.

Our Service

 1.High quality products.

Adhere to the verified system ISO9001, we offer various specifications of percision steel tube with 100% quality guarantee.

2.Perfect service

(1)Product with surface protection and also can be arranged as client' s request.

(2)24 hours online reply

(3)treat every client as friend

 

We can supply seamless steel pipe and precision steel pipe such as cold drawn/rolled steel pipe, honed/SRB steel pipe and so on.

If any need, pls contact us.

Rita Wang

sales@yt-xinpeng(.)com