February 24, 2017

S355JR

S355JR is a structural grade steel that is often used in the construction industry. It has excellent strength and weldability characteristics. The term “Hollow Section” refers to a variety of shapes of hollow structural sections, including rectangular and square shapes. Thus, a S355JR Hollow Section Rectangular or Square Steel Pipe […]
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February 24, 2017

20MnCr5

 Grade :     20MnCr5     Number:     1.7147     Classification:     Alloy special steel     Standard:     EN 10084: 2008 Case hardening steels. Technical delivery conditions   Chemical composition %   of grade   20MnCr5 (1.7147):   EN 10084-2008 Elements not quoted in this table shall […]
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February 24, 2017

ASTM A672 EFW Pipes & Tubes

ASTM A672 standard specification for electric fusion welded steel pipe for high pressure service at moderate temperatures. This specification covers electrical-fusion-welded steel pipe for high-pressure service at moderate temperatures. Heat treatment may or may not be required to attain the desired properties or to comply with applicable code requirements. An […]
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February 24, 2017

Development Tendency of Seamless Steel Pipes in 2017

The situation of domestic steel pipe was negative in 2016. Even has the positive currency policy, the funds was still a headache for steel pipe factories. What’s worse, the slowdown economic growth and frequently blocked export environment deteriorated the harsh situation of domestic market. In 2016, the market will be […]
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February 24, 2017

Large diameter welded pipe cooling way

Cooling in cooling bed has a chain of cooling bed, worm cooling conveyor and rack-type cooling bed. According to the performance requirements of large diameter welded pipe, can use different ways to cool. Forced cooling. Large diameter welded pipe for metal has certain organization and physical properties, should take the […]
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February 24, 2017

2017: A Promising Year for China’s Steel

2017 will be a promising year for China’s steel, mainly at: First of all, supply and demand will keep in balance in the next year, but the species differentiation, exports declined. In fact, cold, hot plate growth rate of more than 5%, but building materials, seamless tube have negative growth, […]
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February 24, 2017

Application of the Spiral Steel Tubes

What is the scope of application of the spiral steel tubes Spiral steel pipes are widely used industrial, construction and other industries of steel, is widely used in various production areas, both inside and outside, oil, gas, sewage treatment plant, water, water supply and drainage, water conservancy project construction pile […]
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February 24, 2017

Distinguish defective square tube

1, Defective square tube because the processing is not in place, the appearance will be a lot of glitches, and these burrs will be very simple scratches the pipe surface, so the first identification method came out, there are many scratches on the exterior of the Is the quality of […]
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