Product: honed tube

Grade: 20# 45# Q345 25Mn 27SiMn E355 SAE1026

Process: cold finished, stress relieved, honed/SRB

Outer diameter: 30-250mm

Wall Thickness: 2-30mm

Surface roughness:Ra0.02-0.4um

Length: 6m(max)

ID tolerance: H7 H8 H9

Final supply condition: BK/BKW/BKS/GBK/NBK

Trade terms: FOB Yantai, Qingdao or as client's request

Payment terms: T/T or L/C or as client's request

Our Company 

Located in Yantai Science&Technology Industrial Park , Yantai Xinpeng Steel Pipe Co,.Ltd. has more than 20 years experience in steel pipe trading. Our company mainly produces various precision steel tube, cold drawn/ rolled steel pipe,  cold finished and stress relieved steel pipe, honed or SRB steel pipe, polishing pipe and so on, which are widely used in hydraulic cylinder for heavy machine, excavator, oil drilling and other field.

Process line

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.

Delivery conditions

Precision tubes are delivered in following conditions 

BK (+C) Cold finished/hard (cold finished as drawn).
No heat treatment after last cold forming process.
BKW (+LC)  Cold finished/soft 
After last heat treatment there is a light finishing pass (cold drawing).
BKS (+SR) Cold finished/stress relieve annealed.
After the final cold forming process the tubes are stress relieve annealed.
GBK (+A) Annealed.
After the final cold forming process the tubes are annealed in a controlled atmosphere.
NBK (+N) Normalized.
After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere. 

Tests: 100% eddy current test, chemical and mechanical inspection, size checking and others

Our Service

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

2. Flexible terms of payment by T/T , L/C And so on.

3. Big discount for repeat customers

4. Smooth delivering procedure

5. More than 20 years steel trading experience 

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

Any question, pls feel free to contact us and we’ll do our best for you !