Product: Honed steel pipe with ISO certification

Technical specification: Suitable for SK+RB/Honed or Skived   and hydraulic  cylinder tube

Grade:20# 45# Q345 25Mn 27SiMn

Tensile strengh: ≥ 600N/mm2

Elongnation: >15

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.

Character

Honed steel pipe or SRB steel pipe are widely directly used for hydraylic cylinder, this kind pipe are in better internal roughness Ra 0.2~0.8um, ID tolerance: H8  H9, straightness:1:1000 or customized, length: Max 6m.  Strictly abide by ISO9001 system, our production are in high quality control with tight tolerance , better surface finishing, and superior mechanical property .

 Packaging&Shipping

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

 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 service

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.

FAQ

Q1.What do you want to purchase ?

 What we can offer are cold drawn seamless tubes,cold drawn welded tubes (DOM tubes)

Q2.Do you have the target price ?

 Generally ,we have the target price when we buy something ,which is good for both supplier and

 customer ,at the same time ,the target price should be objective ,reflecting the market.

Q3.What factors have an effect on the price ?

 1 The market. our price rise and fall accompany with the market

 2 The material and the grade .Different materials sometimes mean hundreds dollars.

 3 The sizes. generally ,the thinner is more expensive because of the manufacture difficulty

 Waiting for your contact!