Changsha HCADTO Stainless Steel Co., Ltd.

 Before the construction of  stainless steel pipes , it is necessary to process them and formulate the required specifications. Here, we will explain the baiting requirements for you. 1. If the stainless steel pipe needs to be connected, should connect the whole plate, and the submerged arc automatic welding is used. After the flaw detection is qualified, the material will be numbered and cut; 2. The samples should be released for blanking, the welding shrinkage allowance and processing allowance during production and installation should be reserved according to the process requirements; 3. Groove welding between the stainless steel pipe and the beam, the beam, the column plate and the end plate are the second-class welds; 4. If the flatness and straightness of the steel are out of tolerance, it should be corrected first, and then cut. It is necessary to master the blanking requirements of stainless steel pipes, so the performance of the product will increase, and the product ...

 Different specifications and standards of  stainless steel seamless pipes  will have different applications. Therefore, when we use it, we need to choose the right product according to the actual situation. Here, we will introduce them briefly. GB2270-80: stainless steel seamless pipe; GB/T14976-94: Stainless steel seamless pipe for fluid transportation; GB/T14975-94: Stainless steel seamless pipe for structure; GB13296-91: Stainless steel seamless pipe for boilers and heat exchangers; GB3090-82: Stainless steel small diameter pipe; GB5310-95: Seamless steel pipe for high-pressure boilers; GB3087-82: Low and medium pressure seamless steel pipe; GB3089-92: Stainless, acid-resistant thin-walled seamless steel pipe; GB9948-88: Petroleum cracking seamless steel pipe; ASTM: A213: Ferritic and austenitic alloy steel seamless pipe for boilers and heat exchangers; ASTM: A269: General purpose austenitic stainless steel seamless pipe and welded pipe; ASTM: A312: Austenitic stainle...

 Theoretical quality calculation formula of  stainless steel product : Stainless steel plate: thickness Χ wide Χ long Χ7.93 Stainless steel pipe: (outer diameter-wall thickness) Χ wall thickness Χ0.02491 Stainless steel round bar: diameter Χ diameter Χ0.00623 Stainless steel angle steel: side length Χ side length Χ7.8Χ0.000198(Side width + side width-side thickness) Χ side thickness Χ0.00793 Stainless steel flat steel: thickness Χ width Χ0.00793 Stainless steel square tube: (side width Χ4 ÷ 3.14-thickness) Χ thickness Χ0.02491 Hexagonal steel: opposite side Χ opposite side Χ0.0069Square steel: side width Χ side width Χ0.00793 Except for the length and width of stainless steel plate in meters, other specifications are in millimeters. HCADTO Stainless Steel Co., Ltd.  the Stainless Steel Division of ADTO GROUP, specializes in manufacturing stainless steel pipes, stainless steel angle bar, flat bar, round bar, square bar, hexagonal bar and channel bar in various grades and s...

 The role of nitrogen in  stainless steel welded pipes  reflected on three aspects: stainless steel matrix structure, mechanical properties and corrosion resistance. Research shows that nitrogen is an element that forms and stabilizes austenite very strongly and expands the austenite phase. It can replace part of nickel in stainless steel, reduce the ferrite content in steel, and make austenite more stable. It can prevent the precipitation of harmful intermetallic phases and avoid martensitic transformation even under cold working conditions. The effect of nitrogen on the mechanical properties of stainless steel manifested in: nitrogen improves the strength of stainless steel without reducing the plastic toughness of the material; nitrogen can improve the creep resistance, fatigue resistance, wear resistance and yield strength of stainless steel. As an element that improves corrosion resistance, nitrogen can form NH4+ in the pores, eliminate the generated H+, inhibit pH, ...