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Elevator Buffer using Skived and Roller Burnished ST52 carbon steel tube
Mar 30, 2017

Specification of carbon tube

 

Standard

DIN2391, DIN2445, EN10305

Grade

ST35(E235), ST37, ST24(E255), ST52(E355), STKM11A, STKM13A,ASTM A53, ASTM A106

O.D.

30MM-250MM

W.T.

2MM-30MM

Surface Treatment

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

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

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

 

Some Dimension of seamless pipe:

 

OD x WT

OD x WT

OD x WT

OD x WT

26*2.8

26*3.0

38*2

38*3

48*5.0

70*2.8

90*10

130*14

48*5.5

70*3.0

90*12

130*16

48*6.0

70*3.5

90*14

130*18

48*7.0

70*4.0

90*16

140*2.5

48*8.0

70*4.5

95*2.0

140*2.8

48*9.0

70*5.0

95*2.2

140*3.0


Our seamless tube


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.

 

2. Honed tube and 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.

 

3. 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.


4.seamless pipe and carbon tube


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