C-276 stainless steel precision steel pipe is a high-performance steel pipe. For the specification of 6.35*0.89:
- Size meaning: "6.35" refers to the outer diameter of the steel pipe, in millimeters; "0.89" refers to the wall thickness of the steel pipe, also in millimeters.
- Theoretical weight calculation: The theoretical weight per meter can be calculated by the formula "(outer diameter-wall thickness) × wall thickness × 0.02513", and the value is (6.35-0.89) × 0.89 × 0.02513 ≈ 0.123kg/m.


First, the material characteristics of C-276 stainless steel precision steel pipe
- Super corrosion resistance: C-276 is a nickel-based alloy, containing a large amount of alloy elements such as nickel, molybdenum, and chromium. It can remain stable in all kinds of harsh corrosive environments, whether it is strong oxidizing acid, such as nitric acid, concentrated sulfuric acid, or reducing acid, such as hydrochloric acid, hydrofluoric acid, or even a variety of complex mixed acid systems, it has excellent resistance, which makes it extremely valuable in the field of chemical corrosion protection.
- Good high temperature performance: In a high temperature environment, C-276 alloy can still maintain good mechanical properties and chemical stability, can withstand certain thermal stress, and can be used in high temperature corrosion conditions, such as high temperature reactor connection steel pipe in chemical production.
- High strength and toughness: It has both high tensile strength and yield strength, and good toughness. When encountering sudden external force impact, it is not easy to break brittlely, which ensures the safety and reliability of steel pipe use.


Second, the application field of C-276 stainless steel precision steel pipe
- Chemical industry: widely used to transport various corrosive chemical raw materials, intermediates, and finished products, commonly used in the production process of fine chemical products such as pesticides, medicines, dyes, etc., as steel pipes, reactor coils, and other components.
- Marine engineering: The marine environment has high salt content and high humidity, and the metal corrodes quickly. C-276 stainless steel precision tubes can resist seawater corrosion and are often used in seawater desalination devices and steel pipe systems for offshore oil production platforms.
- Environmental protection field: In environmental protection projects such as wastewater treatment, flue gas desulfurization, and denitrification, it is often exposed to highly corrosive media. This steel pipe can ensure the long-term stable operation of the treatment equipment and reduce the frequency of maintenance and replacement.


Third, the key points of the processing technology of C-276 stainless steel precision steel pipes
- Cutting processing: Due to the high hardness and strong corrosion resistance of the material, professional high-speed steel or carbide tools should be used with appropriate cutting parameters to prevent the tool from wearing too quickly.
- Welding process: It is necessary to use an appropriate nickel-based alloy electrode, strictly clean the groove and surrounding impurities before welding, control the heat input during welding, and avoid defects such as intergranular corrosion in the heat-affected zone.
- Forming processing: In the forming processes such as cold bending and cold rolling, the processing passes and deformation amount should be arranged reasonably, and annealing treatment should be carried out in time to eliminate processing stress and prevent cracking of the steel pipe.