News

Home > News

News

nodata

Published 15 March 2024
Precautions for cold-drawn precision seamless steel pipe
The cold-drawn precision seamless steel pipe has the characteristics of no oxide layer on the inner and outer walls, no leakage under high pressure, high precision, high finish, cold bending no deformation, flaring and flattening no cracks, and the surface has been treated as rust prevention, etc. It is mainly used in mechanical structure, hydraulic equipment and pneumatic or hydraulic components of automobiles and motorcycles, such as cylinders or cylinders. The basic process flow of cold drawing is: hot rolled tube – > tube inspection, grinding – > tube pickling – > Tube re-inspection after pickling – > Cold drawing – > Straightening before finishing drawing pass – > pickling, lubrication – > finishing drawing – > pre-finished product treatment – > storage. Production needs attention control: 1. Capillary The capillary wall thickness should be uniform and the internal and external surface defects should be less. External surface polishing and internal hole defect cleaning equipment should be equipped. 2. Recheck Compared with ordinary cold-drawn steel pipes, the cold-drawn precision seamless pipe production has increased the hot-rolled tube pickling reinspection process, mainly to ensure that the outer surface of the tube has no folding, cracks and other defects, and to exclude...
view more
Published 06 March 2024
One-stop service provider for stainless steel thick heavy plate cutting and processing
For a one-stop service provider of stainless steel thick plate sheets cutting and thick heavy plate sheets polishing, look for Hua Steel Company. Our company specializes in supplying stainless steel plates and their polished, cut and finished products, with advanced processing equipment to ensure product quality. Hua Steel Company introduced large-table waterjet cutting equipment and now has comprehensive plate cutting and processing production capabilities, as well as plasma cutting and laser cutting. Stainless steel products of various thicknesses can be processed and cut according to customer needs. At the same time, the plates we choose come from major national quality-controlled factories such as TISCO. and ZPSS. The main materials are 304, 316, 321, 2205, etc. Material fidelity and corresponding quality guarantee certificate can be provided. In addition to these services, we can also provide hairline, mirror polishing, color coating and other services. For customers with relatively high product requirements, we will form a project team to communicate technical details, clarify and fully meet the customer’s needs, and formulate a high order plan to ensure that the product meets quality standards.
view more
Published 29 February 2024
Stainless steel standard thickness and actual thickness comparison table
The difference between the standard and actual thickness of stainless steel is because there may be some slight tolerances during the production of stainless steel products. The following is a brief description of the comparison table between stainless steel standard thickness and solid thickness: Thickness of stainless steel plate: There are usually several different nominal thicknesses, including but not limited to various thickness values in the range of 0.3mm to 3.0mm. These thicknesses are specified according to national standards, but may be slightly different in actual production. Thickness of stainless steel strip: Similarly, the standard thickness range can vary from 0.05mm to 3.0mm, and the actual thickness may also vary within this range. Thickness of stainless steel coils: For stainless steel coils, the standard thickness is usually between 0.3mm and 3.0mm, and the actual thickness of the coil produced will vary. To sum up, the nominal thickness of stainless steel products is an important quality indicator, but in practical applications, users should take into account the small tolerances of the product in the actual manufacturing process. Therefore, while the nominal thickness provides a guide, the actual material used should take into account the allowable tolerance range When the stainless steel...
view more
Published 24 February 2024
Stainless steel quality standards
1. Stainless steel quality requirements Stainless steel is a steel material with good corrosion resistance and has a wide range of applications. The quality requirements of stainless steel mainly include chemical composition, mechanical properties, appearance quality, etc. 1.Chemical composition The chemical composition of stainless steel is mainly composed of chromium, nickel, molybdenum and other elements, of which the chromium content cannot be less than 10.5%. The chemical composition of stainless steel has an important impact on its corrosion resistance, heat resistance, mechanical properties, etc. Hua steel company has own PMI machine,we can do PMI testing to check the stainless steel sheets and plates’ chemical composition more quickly. 2.Mechanical properties The mechanical properties of stainless steel mainly include tensile strength, compressive strength, yield strength, elongation and other indicators. The mechanical properties of stainless steel materials directly affect its reliability and service life. Every time, when we prepare the stainless steel products like sheets, coils, bars, pipes, we will send customer MTC, mill certificate ,which shows mechanical properties. 3. Appearance quality The appearance quality of stainless steel refers to its surface quality requirements, which mainly include surface finish, surface condition, surface defects, etc. The qualification requirements for surface quality should comply with...
view more

‹7 8910 11 ›

Home WhatsApp Mail Inquiry