6 Density 400 & rdquo; Density of series: 93310s, ferrite, martensite, duplex (ferrite austenite) stainless steel cold rolled coil and stainless steel hot rolled coil.
Since last year, foreign countries have frequently carried out & ldquo; Double inverse & rdquo; This has a great impact on China's stainless steel casting industry. Export is a large part of the development of China's stainless steel industry and occupies a huge market share in its industrial development. In the face of the current economic downturn and slow development speed, the development of China's stainless steel industry should continuously improve product quality, Better develop overseas trade and deal with trade protectionism, combine products with environmental protection, energy resources and cultural environment, and improve the competitiveness of stainless steel products. Only in this way can we achieve an invincible position in foreign trade.
.Model 309 & mdash; It has better temperature resistance.
For the length of welding arc, and ~ 3mm is better for stainless steel welding. If it is too long, the protection effect is not good.
.The application of stainless steel pipe in the automobile industry is developing rapidly. In recent ten years, stainless steel pipe materials have been widely used in public transportation tools such as buses, subways, high-speed railway vehicles, household cars and so on!
SPCC stainless steel belt is simply an extension of ultra-thin stainless steel plate. It is mainly a narrow and long steel plate produced to meet the needs of industrialized production of various metal or mechanical products in different industrial sectors.
After hot rolling, due to the different characteristics of each market, stainless steel pipe manufacturers need to make different marketing strategy adjustments; As the saying goes, & ldquo; No matter what kind of cat it is, catching mice is a good cat& rdquo; Professional projects include: stainless steel plate, stainless steel coil, stainless steel belt, stainless steel pipe and other related businesses. Merchants who hope to have this business please. This is also true in the marketing strategy. Therefore, manufacturers of stainless steel pipes need to make marketing innovation at any time to match the changing market conditions.
There are various connection modes of stainless steel pipes. The common types of pipe fittings are compression type, compression type, union type, push type, push thread type socket welding type, union flange connection, welding type and derivative series connection mode combining welding with traditional connection. These connection modes have different application ranges according to their principles, but most of them are easy to install, firm and reliable. The sealing ring or gasket materials used for connection are mostly silicone rubber, nitrile rubber and EPDM that meet the requirements of national standards. L stainless steel pipe, s stainless steel pipe, 904L stainless steel pipe and other brand products are provided for a long time. The designated products are complete and the quality is guaranteed, which eliminates the need for use
Origin: domestic and imported (Sweden, Japan, Finland, South Korea, South Africa and Taiwan); classified according to the thickness of thin plate (0.2mm-4mm), medium plate (4mm-20mm), thick plate (20mm-60mm) and extra thick plate, according to the production of hot-rolled steel plate and cold-rolled steel
Where is good.201 series & mdash; Chromium nickel manganese austenitic stainless steel.
Mechanical properties when the steel or sample is stretched, when the stress exceeds the limit, even if the stress is no longer increased, the steel or sample continues to have obvious plastic deformation, and the small stress value when the yield phenomenon occurs is the yield point.
In order to protect the welding pool well with argon and facilitate the welding operation, the center line of tungsten electrode and the workpiece at the welding position shall be kept 80 ~ 85° Angle, the included angle between filler wire and workpiece surface shall be as small as possible, generally 0-DEG; about.
3: stainless steel rod: round rod, hexagonal rod, square steel, flat steel, hexagonal angle steel, round steel, solid rod. Hexagonal rod and square steel (flat steel) are more expensive than round rod (most of the hexagonal rod specifications are imported high-quality materials). The bright surface is more expensive than black leather surface. Large diameter bars are mostly black leather rods. 303 is a unique material in bars, which belongs to easy turning (cutting) materials, It is mainly used for self cutting. In addition, 304f.303cu.316f also belong to easy cutting materials
Inspection environment.Seamless stainless steel pipe also known as stainless steel pipe, is made of steel ingot or solid pipe blank through perforation, and then made by hot rolling cold rolling or cold drawing. The specification of seamless steel pipe is expressed by outer diameter * wall thickness mm. With the implementation of China's reform and opening up, the national economy has achieved rapid growth, and a large number of urban houses, public buildings and tourism facilities have been built, which puts forward new requirements for hot water supply and domestic water supply. In particular, people pay more and more attention to the problem of water quality, and the requirements are also increasing. Galvanized steel pipe, a common pipe, will gradually withdraw from the historical stage under the influence of relevant countries because of its corrosivity. Plastic pipe, composite pipe and copper pipe have become common pipes in the pipeline system. However under certain circumstances, stainless steel pipe has more advantages, especially the stainless steel pipe with wall thickness of only 0.6 ~ 2mm. In high-quality drinking water system, hot water system and water supply system that puts safety and sanitation first, it has the characteristics of safety, reliability, sanitation, environmental protection, economy and applicability. It has been proved by engineering practice at home and abroad that it is one of the new, energy-saving and environmental protection pipes with good comprehensive performance of water supply system. It is also a very competitive water supply pipe, which will play an incomparable role in improving water quality and people's living standards.
3. Domestic wce20 cerium tungsten electrode is used for electrode data. The shape and diameter of the end of cerium tungsten electrode have a great impact on the fluctuation of welding process and weld formation.
. 18%), which is better than l and 317L in most environments.
.Theoretical weight: Cr Ni austenitic stainless steel austenitic stainless steel (kg / M) s-wall thickness (mm)
Stainless steel is a common steel in stainless steel, also known as 188 stainless steel. It is characterized by high temperature resistance, so it is made into a frequently used steel. Common in life are stainless steel pipe, stainless steel plate, stainless steel coil and other building materials. As a very important building material, stainless steel is widely used in industry, construction industry, home decoration industry and food and medical industry. It is one of the indispensable materials in life! So what items are made of stainless steel in our life? Let's have a look!
The internal and external greasy dirt and sundries at the pipe end shall be completely removed to keep the pipe inside the pipe fittings clean.