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NORSOK STANDARD M-501 Swivel Flange A694 F65 Deep-sea Working Condition Anti-corrosion Coating 1、 Preface NORSOK STANDARD M-501 is a Norwegian petroleum industry standard used to regulate the selection, evaluation, specification, and implementation of coating systems for offshore and marine applications. This standard is an important component of the Norwegian petroleum industry and serves as the […]

A694 F65 is a high-strength, low alloy steel widely used in industries such as petroleum, natural gas, and chemical engineering. Rotating flange is a common connection method for connecting pipelines, which can be divided into metal sealing and gasket sealing. When using rotating flanges to connect A694 F65 pipelines, it is usually necessary to spray

1、 Characteristics of C276 Hastelloy Prefabricated Pipeline C276 Hastelloy is a type of cobalt based alloy, which has characteristics such as acid resistance, alkali resistance, high temperature resistance, and corrosion resistance. It is widely used in fields such as chemical engineering, metallurgy, electronics, aviation, etc. C276 Hastelloy prefabricated pipelines have become an important component of chemical

1、 Preface A182 F53 flange is a high-strength and corrosion-resistant stainless steel flange made of F53 material, with a PREN value generally greater than 40. In some special fields, such as oil, natural gas, and other industries, the requirements for materials are very strict and need to meet the NACE standard. A PREN value greater than

A182 F51 is a high-strength stainless steel material commonly used in corrosive environments such as marine environments and chemical processing fields. Its PREN value (Pitting Resistance Equivalent Number) is an important material indicator used to measure the corrosion resistance performance of materials. And NACE (National Association of Corrosion Engineers) is a professional corrosion technology association that has

NORSOK M-650 certified flange products refer to those that comply with the technical standards established by the Norwegian Petroleum Industry Association (NORSOK) and are suitable for offshore sponsored drilling and production equipment. This standard requires products to be able to adapt to harsh marine environments and high pressure and high temperature working conditions. There are strict requirements

BV is a world-renowned ship classification society that is recognized for its thorough and comprehensive certification processes. This certification represents BV’s assurance that the flange products have been manufactured to meet the highest quality standards and comply with international regulations. The certification process starts with an assessment of the flange product design, materials, and manufacturing

NACE 316L stainless steel pipe fittings are materials with excellent corrosion resistance and strength, which are widely used in fields such as petroleum and natural gas. The sulfur and phosphorus elements are important factors affecting the corrosion resistance of steel, so it is necessary to control the sulfur and phosphorus elements in the NACE 316L stainless

Austenitic stainless steel flange F304L F316L F321 is softened by solution treatment. Generally, the stainless steel flange F304L F316L F321 is heated to about 950~1150 ℃. After a period of heat preservation, the carbide and various alloy elements are fully and evenly dissolved in austenite, and then rapidly quenched and cooled. Carbon and other alloy

1. Problem posing The unified technical regulations usually include that “austenitic stainless steel flange vessels are used in environments that may cause intergranular corrosion, and solution or stabilization treatment shall be carried out after welding”. Such requirements have their own rationality. However, even if the designer puts forward this item in the technical requirements of the