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Machinery Mild Steel Hollow Bar Big Diameter Thick Wall Thickness DIN2391

Place of Origin Jiangsu, China
Brand Name Hongbao
Certification TS16949,DNV,PED,ISO,TUV,LR
Model Number HBHST-1
Minimum Order Quantity 1 ton
Price Negotiable
Packaging Details Original packaging according to the customers Export standard package in bundled or as required.
Delivery Time within 50 days
Supply Ability 30000MT per year
Product Details
Certificate TS16949,DNV,PED,ISO,TUV,LR OD 6-120mm
Thickness 0.5-15mm Type Welded Or Seamless
Processing Cold Drawn, Cold Rolled Shape Round
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hollow steel bar

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hollow steel pipe

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Product Description

DIN2391 Cold Drawn Precision Hollow Steel Tube Big Diameter Welded Steel Pipe

 

Description:

Steel Grade/Steel Material:

E155 E195 E235 E275 E355

 

Delivery Condition:

1. BK Cold finished(hard)

2. BKW Cold finished(soft)

3. BKS Cold finished and stress-relieved

4. GBK Annealed

5. NBK Normalized

 

Characteristic:

Good concentricity

Good OD and ID tolerance

High precision

Stable quality

Smooth roughness

 

Steel Tube Production Process:

Raw material → Incoming inspection → Cutting → Heating → Piercing → Hammering →Pickling → Cold-drawing → Heat treatment → Physical chemistry test → Straightening → Ends cutting → Final inspection → Bundling →Storage

 

Heat treatment method

+Cc, +LCc, +SR, +Ad, +N

Note: Special steel grade is also available, according to customer request.
Please specify the steel grade and heat treatment mothod when sending the enquiry