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welding problems and measures of stainless steel-4

Posted on Thu, 06 Jul 2017 05:25:04 +0000

4. Welding hot cracking (weld crystal crack, heat affected zone liquefaction cracking) Thermal cracking sensitivity depends primarily on the chemical composition, organization and properties of the material. Ni and S, P and other impurities to form low melting compounds or eutectic, boron, silico...

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stainless steel welding problems and measures 2-3

Posted on Wed, 05 Jul 2017 06:42:23 +0000

Austenitic stainless steel in the welding characteristics: the welding process of the bomb, plastic stress and strain is very large, but rarely cold cracks. Weld joints do not exist hardened hardening zone and grain coarsening, so the weld tensile strength is high. Austenitic stainless steel wel...

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precipitation of stainless steel punching net

Posted on Tue, 04 Jul 2017 07:28:10 +0000

We should not pay attention to the processing of stainless steel punching net products, the product processing area should be relatively fixed. Stainless steel perforated mesh processing area of ​​the platform should be taken to isolate, such as covered with rubber pads and so on. Stainless steel...

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welding problems and measures of stainless steel -1-(2)

Posted on Mon, 03 Jul 2017 06:00:40 +0000

Welded joints of the knife-like corrosion Precautions: Due to the strong diffusion of carbon, in the cooling process will be segregated in the grain boundary to form a supersaturated state, and Ti, Nb due to low diffusion capacity and stay in the crystal. When the welded joint is heated again in ...

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Analysis and Measures of Welding Problem of Stainless Steel -1-(1)

Posted on Fri, 30 Jun 2017 06:08:58 +0000

1. The formation of chromium carbide reduces the resistance to intergranular corrosion of welded joints. Intergranular corrosion: According to the theory of poor chromium, welds and heat affected zone in the heating to 450-850 ℃ sensitized temperature zone in the grain boundary precipitation of c...

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square tube stainless steel specifications

Posted on Thu, 29 Jun 2017 06:15:33 +0000

Stainless steel square tube is a hollow long steel, because the section is square so called square tube. A large number of pipes used for conveying fluids, such as oil, natural gas, water, gas, steam, etc., in addition to bending, torsion strength of the same, the lighter weight, it is also widel...

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304 stainless steel square tube performance

Posted on Wed, 28 Jun 2017 06:05:01 +0000

Stainless steel square tube is a hollow long steel, because the section is square so called square tube. A large number of pipes used for conveying fluids, such as oil, natural gas, water, gas, steam, etc., in addition to bending, torsion strength of the same, the lighter weight, it is also wide...

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the price of rebar in China

Posted on Tue, 27 Jun 2017 04:06:25 +0000

The price change of rebar is mainly affected by three factors: First, the cost of production, but the relationship between supply and demand, the third is speculative factors. Factors affecting production costs include raw material costs and energy costs. The factors that affect the relationship ...

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stainless steel large diameter pipe trade specifications

Posted on Mon, 26 Jun 2017 04:04:06 +0000

Large diameter coated steel pipe is made of large diameter spiral welded pipe and high frequency welded pipe on the basis of plastic, the largest nozzle diameter of 1200mm, according to different needs coated with polyvinyl chloride (PVC), polyethylene (PE) Epoxy resin (EPOZY) and other different...

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the price of color steel plate from the Chinese suppliers

Posted on Thu, 22 Jun 2017 07:40:46 +0000

Color steel plate products are manufacturers in the continuous production line into a roll production, it is also known as color coated steel coil. Color steel plate not only has high mechanical strength of steel, easy to shape the performance, but also both good decorative coating materials and ...

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What is the difference between cold rolled and hot rolled plates?

Posted on Wed, 21 Jun 2017 06:18:02 +0000

Cold rolled sheet is a hot rolled coil as raw material, at room temperature in the recrystallization temperature of the following rolling from a plate. Hot-rolled plates, hot-rolled steel plates and steel belts, commonly known as hot plates, are usually rolled into words, such as hot plate, but a...

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stainless steel angle is good or bad quality distinction

Posted on Mon, 19 Jun 2017 06:51:41 +0000

We know that today’s stainless steel angle steel in the bridge construction, beam beam bracket, manufacturing, ship and other fields widely used, so the market demand is very large, thus promoting the stainless steel angle more business and the emergence of many product brands, then how Cho...

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