Jiangsu Hongbao Group Co., Ltd.
                                                                                                           
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Machinery Mild Steel Hollow Bar Big Diameter Thick Wall Thickness DIN2391

Price Negotiable
Price: Negotiable
MOQ: 1 ton
Delivery Time: within 50 days
Brand: Hongbao
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

 

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Jiangsu Hongbao Group Co., Ltd.
Location DAXIN TOWN,ZHANGJIAGANG,JIANGSU P.R.CHINA
Contact Person Angela

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