Product: cold rolled honed piping

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

Benifit:

• Superior surface finish
• Dimensional accuracy and excellent micro-structure uniformity
• Enhanced machinability
• High strength to weight ratio
• Tight tolerances, resulting in reduced machine time

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.

 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

Certificate

Strictly according to system verified ISO9001:2008, all our products are in high quality control and tight tolerance.

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.

6.Alibaba trade assurance supplier

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!