Zhejiang Matech Industry Company Limited

TEL: +86-571-28350111
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Hangzhou Matech Steel Company Limited
Tel: +86-571-28350111
Fax: +86-571-86693517
Email: sales@matech-steel.com
Add: Floor 10, Xixi Vally E-Building, Xihu District, Hangzhou, Zhejiang province, China
Black ERW Steel Pipe

Black ERW Steel Pipe

Black ERW steel pipe ERW pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tube which is fused through a electric charge. + ERW Pipe Manufacturing Processes · Welded Tube and Pipe Manufacturing Processes · Electric resistance welding at a glance · ERW...
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Black ERW steel pipe

ERW pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tube which is fused through a electric charge.

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+ ERW Pipe Manufacturing Processes

· Welded Tube and Pipe Manufacturing Processes

· Electric resistance welding at a glance

· ERW pipe technical requirements

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Double Submerged Arc Welded (DSAW) steel pipe is available in straight and spiral welded formats and used in a variety of applications.

ERW pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tube which is fused through a electric charge. 
Common sizes for ERW Steel Pipe range from 2 3/8 inch OD to 24 inch OD in a variety of lengths to over 100 feet. 
Surface finishes are available in bare and coated formats and ERW steel pipe processing can be handled on site to customer specifications. 
Segregation
Segregation is the uneven distribution of chemical composition in the steel, in particular harmful elements such as sulfur, phosphorus enrichment in the ingot. 
Non-metallic inclusions 
Non-metallic inclusions refers to non-metallic inclusions in steel containing impurities such as sulfides and oxides. 
Stomata 
Stomata refers iron and carbon monoxide gas effect generated in the pouring can not fully escape and stay in the tiny pores in the ingot. 
Shrinkage 
Shrinkage is due to the liquid steel ingot mold from outside to inside, the volume contraction during solidification bottom-up, because the level drops, the final solidification of liquid steel parts can not be added to form. 
Crack 
Solidification of liquid steel in the order due to different causes stress, tension cracks may appear larger parts.

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  • Contact Us
    Hangzhou Matech Steel Company Limited
    Tel: +86-571-28350111
    Fax: +86-571-86693517
    Email: sales@matech-steel.com
    Add: Floor 10, Xixi Vally E-Building, Xihu District, Hangzhou, Zhejiang province, China
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