a53 b seamless steel pipe trade assurance supplier

Product: a52 b seamless steel pipe trade assurance supplier

Technical specification: Suitable for hydraulic  cylinder tube

Grade:20# 45# 16Mn 25Mn 27SiMn

Outer diameter: 30-250mm

Wall thickness: 2-30mm

ID tolerance: H7 H8 H9 or as customized

Package: standard packing with plastic bags or as client's request

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

Process

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

Dimension Tolerance

Packing&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 conditions

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

Company introduction

Established in December 1992, with registered capital of 5 million yuan and plant and office space of 12,000 square meters, covering an area of 20,000 square meters , 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.  

Our service

1.more than 20 years experience in steel pipe trading

2.alibaba trade assurance supplier

3.fast delivery

4.timely response

5.superior quality and reasonable price

6.discount for repeat client

Waiting for your contact!