St52 Cold Drawn Tube

St52 Cold Drawn Tube

St52 Cold Drawn Tube I ntroduction WUXI HENGTONG PETROLIC MACHINERY manufactures pre honed tubes, ready to hone tubes, honed tubes, skived and roller burnished tubes, chrome bar, piston rods and high-precision cold-drawn steel tubes, We are well-equipped with 300 ton, 150 ton, 65 ton, 20 ton of...
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Product Details

St52 Cold Drawn Tube Introduction

WUXI HENGTONG PETROLIC MACHINERY manufactures pre honed tubes, ready to hone tubes, honed tubes, skived and roller burnished tubes, chrome bar, piston rods and high-precision cold-drawn steel tubes, We are well-equipped with 300 ton, 150 ton, 65 ton, 20 ton of cold drawing machine,9 meters CNC boring machines, 20 sets honing machines , one set furnace and advanced quality testing equipment, which combine cold drawn, cold-rolled, heat treatment and traditional machining process.

St52 Cold Drawn Tube 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, 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

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 –inspection – oiled plated - packing

Testing Equipment.jpg 

Quality control

1. We only buy raw material from famous tube factory, and Checking raw material quality before production.

2. We check the tube ID tolerance, OD tolerance and surface after cold drawn one by one.

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