エントリー - WLDステンレス

Uステンレス鋼熱交換器の熱処理

7月 28, 2021 カテゴリ: /作成者:

When talking about the heat treatment of austenitic U-shaped stainless steel tubes, most people think it’s not necessary because of sensitization and high solution treatment temperature, it is easy to cause deformation of the pipe. In fact, the heat treatment of Austenitic stainless steel is inevitable, heat treatment can not change the structure of stainless steel tubes, but can change the processability. For example, due to low carbon content, 304 stainless steel heat exchange tube is difficult when normalizing to make the surface roughness of the gear shaping cutter to meet the requirements, reduce the tool life. The low carbon martensite and iron cable structure obtained after incomplete quenching can […]

The polishing treatment on stainless steel tube

7月 26, 2021 カテゴリ: /作成者:

The polishing treatment of stainless steel tubes is actually a surface grinding process, through the instrument and stainless steel tube surface friction to obtain a bright surface. Stainless steel tube outside polishing is used to cut the surface with different coarse particle size linen wheel to obtain the bright surface, and the internal polishing is in the stainless steel tube inside the reciprocating or selective movement of the internal grinding with plastic grinding head. It is worth noting that polishing can not improve the original machining accuracy but only change the surface flatness, the surface roughness value of polished stainless steel tube can reach 1.6-0.008um. According to the processing process, […]

The weight chart of stainless steel square and rectangle tube

7月 26, 2021 カテゴリ: /作成者:

The stainless steel offers good corrosion resistance against most common chemical corrodents and industrial atmospheres. The stainless square or rectangle tubes have the advantages of long service life, good corrosion resistance and lightweight can be used in industrial piping, automotive, instrumentation, medical and construction industries, such as stair handrails, railings, partitions, bicycles, medical equipment, cars and so on. Here is the weight chart of 304 square and rectangle tubing: 304 Stainless steel square and rectangle tubing weight  Length:6000mm, Unit:KG Size 0.4 0.5 0.6 0.7 0.8 0.9 1 1.2 1.5 2 2.5 3 4 5 10×10 0.74 0.91 1.09 1.26 1.43 1.59 12×12 0.89 1.1 1.32 1.53 1.73 1.93 2.13 2.53 […]

Alloy20はニッケル系合金ですか、それともステンレス鋼ですか？

2021年7月22日 カテゴリ: /作成者:

Alloy20 (N08020) is an Austenitic nickel-iron-chromium-based superalloy with excellent resistance to total, intergranular, pitting and crevice corrosion in chemicals containing chlorides, sulfuric acid, phosphoric acid and nitric acid. Its corrosion resistance is good between 316L and Hastelloy, and it is not as good as 316L stainless steel in some amine solutions because it is easy to form nickel ammonium complexes. In addition, it has a good cold forming and weldability even at up to 500℃. The low carbon content and the addition of niobium help to reduce the precipitation of carbides in the HEAT affected zone, so it can be used in the welded state in most cases. For a […]

304ステンレス鋼管の肘部の理論的な重量

2021年7月22日 カテゴリ: /作成者:

Stainless steel pipe fittings are extensively used in the manufacturing industries for its durability and cost-effectiveness. It has many advantages over the traditional pipe fittings that make it more preferable than any other. The cost-effectiveness of the alloy products greatly contributes to their wide application. Besides this, it helps in the maintenance of the pipe systems too. These are the main reasons why the 304 pipe fittings and accessories have become popular in the market. As the industry requires, the 304 pipe elbows made by the welded and seamless process can be easily found online. But before buying them, you must ensure their weight for your needs, because it will […]

デュプレックスステンレス鋼は何に使用されますか？

7月 21, 2021 カテゴリ: /作成者:

Duplex stainless steel refers to the stainless steel that have each 50% of ferrite and austenite , the general content of the less phase is at least 30%, it has both the characteristics of austenite and ferrite stainless steel. Compared with ferrite, it has higher plasticity, toughness, no room temperature brittleness, intergranular corrosion resistance and welding performance are significantly improved, also maintain the 475℃ brittleness of ferrite stainless steel and high thermal conductivity, superplasticity and other characteristics. Compared with austenitic stainless steels, dual-phase stainless steels have higher strength and higher resistance to intergranular corrosion and chloride stress corrosion. Duplex stainless steel is widely used in various applications because of its […]