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Home > products > Precision Steel Tube > ST52 Q345B Seamless Precision Steel Tube, Auto Parts Large Diameter Steel Tube

ST52 Q345B Seamless Precision Steel Tube, Auto Parts Large Diameter Steel Tube

Product Details

Place of Origin: Jiangsu, China

Brand Name: Hongbao

Certification: TS16949, DNV, PED, ISO, TUV, LR

Model Number: HBPST-1

Payment & Shipping Terms

Minimum Order Quantity: 1 ton

Price: Negotiable

Packaging Details: seaworthy plywooden case packing.

Delivery Time: Within 50 days if production

Payment Terms: L/C, T/T

Supply Ability: 30000MT per year

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Highlight:

precision steel pipe

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Origin::
Jiangsu,China
OD::
6-120mm
Thickness::
0.5-15mm
Shape::
Round
Type::
Welded Or Seamless
Processing::
Cold Drawn, Cold Rolled
Origin::
Jiangsu,China
OD::
6-120mm
Thickness::
0.5-15mm
Shape::
Round
Type::
Welded Or Seamless
Processing::
Cold Drawn, Cold Rolled
ST52 Q345B Seamless Precision Steel Tube, Auto Parts Large Diameter Steel Tube

ST52 Q345B Cold Drawn Precision Steel Tube Round Cold Drawn Honed Tubes For Auto

 

Description:

Our ST52 Q345B cold drawn precision steel tube is a high-stength, precision-crafted round tube for automotive applications. Cold drawn and honed for exacting tolerances, this tube features excellent dimensional stability, high tensile strength and smooth inner surfaces. Ideal for use in engine mounts, suspension components and other critical auto parts where reliability and performance are paramount.

 

Delivery

Conditions

1. BK (+C) No heat treatment after last cold forming process.
2. BKW (+LC) After last heat treatment there is a light finishing pass (cold drawing)
3. BKS (+SR) After the final cold forming process the tubes are stress relieve annealed.
4. GBK (+A) After the final cold forming process the tubes are annealed in a controlled atmosphere.
5. NBK (+N)

After the final cold forming process the tubes are annealed above the upper transformation

point in a controlled atmosphere.

Package 1. Bundle Packing.
2. Plain end or vanished as per customer's request.
3. Wrapped in waterproof paper.
4. Sackcloth with several steel strips.
5. Pack in heavy tri-wall boxes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Quality Control:

1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking.

ST52 Q345B Seamless Precision Steel Tube, Auto Parts Large Diameter Steel Tube 0