Q345B Honed Tube

Q345B Honed Tube Introduction Honed Tubes are presicion tubes with smooth inside, they also could be skived and burnished pipe. Tubes or pipes inside tolerance could be H10, H9 or H8. Outside tolerance, wall thickness tolerance are produced according to seamless cold drawn tubes for precision...
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Product Details

Q345B Honed Tube Introduction

Honed Tubes are presicion tubes with smooth inside, they also could be skived and burnished pipe. Tubes or pipes inside tolerance could be H10, H9 or H8. Outside tolerance, wall thickness tolerance are produced according to seamless cold drawn tubes for precision application standard GB/T3639-2009,EN10305 or DIN2391 standard. Material SAE1020, 20#, ST45, CK45, ST52, E355 tubes and so on for you to choose.

Q345B Honed Tubes technical parameters and Details

Application: hydraulic cylinder, pneumatic cylinder, oil cylinder, telescopic cylinder.

Original: Jiangsu, China

Certification: ISO9001.

Material: SAE1020, 20#, ST45, CK45, ST52, E355

Payment term: TT, LC

Delivery date: usually 20 to 40 days.

Packing: packed in bundle, oiled inside, with caps on both ends.

Market: Middle East/ Africa/Asia/South America/Europe/North America

MOQ:  Depends on exact size and material.

Mechanical Properties:


Final Supply
     Condition

Cold finished
     (Hard)(BK)

Cold drawn and stress-relieved (BK+S or + SR)

Hardness HB

Parameters

T.S
     obN/mm2

Elongation
     δ5%

T.S
     obN/mm2

Y.S
     OsN/mm2

Elongation
     δ5%

20# (A106B, ST45, E255)

≧550

≧8

≧520

≧375

≧12

175

45#(CK45)

≧650

≧5

/

/

/

207

Q345B(ST52, E355)

≧640

≧5

≧600

≧520

≧15

190

25Mn

≧640

≧5

≧600

≧510

≧15

195

27SiMn

≧840

≧5

≧800

≧720

≧10

230

Honed Steel Pipe.jpg

Production process

Raw material – annealing for material of 45#, 27SiMn, 25Mn – Acid cleaning – parkerizing & Saponifying – cold drawn – leveling – saw off bad section – stress relieving – leveling –honing or skiving – inspection – oiled plated - packing

Experience and markets

Our factory has more than 20years working experiences on researching and selling. Products are well sailed all over the world, got many compliments from customers.

Our team.jpg

Our Advantages

a. Extensive production experience: we are specialized in honed tubes, skived tubes, cold drawn pipe, and chrome bar with an experience of 20 years.

b. Complete production facilities: owning cold drawn machine, skived and roller burnished machine, honing machine, precision centerless grinding machine, straightening machine, fine polishing machine, precision lathe, milling and drilling machine, roller press and other advanced equipments. Our technicians will do regular scheduled maintenance on these machines to guarantee them work well.

c. High quality raw material: we mainly choose raw material from big steel factory, such as AN STEEL, TPCO, BAO STEEL, SHA STEEL, which are best and largest raw material manufacturer in China.

d. Strict Physical/Chemical testing procedures: meeting the requirements of the product design and process, providing reliable testing data.

e. Short Delivery time: Usually one container 20 days. We also stock some standard-sized tubes and bars.

f. Safe packing: anti-rust oil be spread on tubes and bars before shipping, plastic caps on tube ends to protect inside surface, each bar be protected with cardboard tube.

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