ASTM A554 Stainless Steel Square Tube 304 Stainless Steel Square Tubing is ideal for most fabrication techniques as well as indoor and outdoor applications. This non-magnetic product features a semi-smooth, dark gray finish and tapered edges with accurate dimensions throughout its length.304 Stainless Steel is a high strength material with excellent corrosion resistance, making it ideal for marine equipment, railings, medical equipment, and food industry equipment.ASTM A554 is the standard specification for welded stainless steel mechanical tubing.
439 Stainless Steel Coil Type 439, a titanium-stabilized 18% chromium alloy, is a ferritic stainless steel designed to resist corrosion in a wide range of oxidizing environments from fresh water to boiling acids.Type 439 is also used in many oxidizing environments, where Type 304 is considered adequate for general corrosion resistance, but is subject to chloride stress corrosion cracking. This variation does not require post-weld annealing to restore ductility or provide resistance to intergranular corrosion. Excellent resistance to stress corrosion cracking, good weldability, high thermal conductivity and low thermal expansion properties make Type 439 stainless steel ideal for many applications. Application Appliances Hot water tanks, home furnaces Automotive Hard-to-form exhaust system components, tube manifolds, mufflers Heat exchangers for power generation
SS 304 Square Pipe SS 304 Square Pipe is an excellent choice for most fabrication techniques as well as indoor and outdoor applications. This non-magnetic product features a semi-smooth, dark gray finish and tapered edges that are dimensionally accurate throughout its length.304 Stainless Steel is a high-strength material with excellent corrosion resistance, making it ideal for marine equipment, railings, medical devices, and food industry equipment. ASTM A554 is the standard specification for welded stainless steel mechanical tubing. Application: 1. Home decoration Home decoration is the place where stainless steel decorative tubes are most commonly used. We have a lot of daily contact with stainless steel anti-theft nets, stainless steel doors and windows, stainless steel screens, and stainless steel staircase handrails. Compared with other materials, stainless steel has the advantages of simplicity, grandeur, rust resistance, and durability, making it the darling of home decoration. 2. Public facilities The demand for stainless steel decorative pipes in public facilities is also increasing. The demand for public facilities such as stainless steel fences, stainless steel guardrails, street lights, and cultural decorative landscapes is also rapidly increasing. 3. Mechanical structure The demand for stainless steel decorative pipes in mechanical structures is very high. Stainless steel has excellent properties such as durability, rust resistance, corrosion resistance, and strong metal texture, which are just in line with the application of mechanical structures. In addition, in recent years, the demand for pipes used in automotive mechanical structures has increased rapidly, which has also led to a rapid increase in the demand for stainless steel pipes used in automotive mechanical structures. 4. Protective windows and doors Nowadays, many protective windows and doors are made of stainless steel material, which not only has a long service life but also has high strength, making it very suitable for making protective windows and doors and windows for high-rise residential buildings.
Heating and hardening methods Steel has a critical temperature at which it becomes ductile and begins to change its chemical structure. When steel is heated above this temperature, it enters what is known as the austenite stage. From this point on, engineers can create the correct shape and quality of steel that they need. There are many ways to heat treat steel, including but not limited to: Annealing - heating and then slowly cooling the steel to refine it and make it softer Carburizing - using heat and carbon-rich materials to add carbon to the surface Surface Hardening - Carburizing and rapidly cooling the steel so that the center remains soft and the rest hardens Cyanide Hardening - similar to surface hardening, but uses molten cyanide salts instead of carbon to form a hard shell Decarburization - removing carbon from a steel alloy by heat or oxidation Nitriding - adding nitrogen to the surface of steel using heat and a nitrogen-rich liquid or gas Stretching or Tempering - reheating steel that has been cooled to a specific temperature to remove hardness
