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Industrial Articles

Technical articles on OCTG, alloy and stainless steel: grades, heat treatment, corrosion limits and field practice, written by the ShunFu Metal team.

Safety Valve and PRV (ASME/API 526)

Safety Valve and PRV (ASME/API 526) Safety Valve A safety valve is protection equipment that is invented to control the pressure in operation. This valve protects people and the environment from overpressure that may produce explosions or different damages. When a set pressure exceeds, a safety valve opens automatically. A safety valve is the

2026-01-28T06:29:29+00:00September 9th, 2022|Industrial Articles|
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13Cr Steel In Oil And Gas

13Cr Steel In Oil And Gas In most conditions when the partial pressure of CO2 is above 30psi, carbon steels present high corrosion rates. Steel grades alloyed with high contents of Chromium (Cr), Molybdenum (Mo) and Nickel (Ni) are able to effectively resist corrosion. 13Cr Steel OCTG Pipe made with 13% Chromium (13Cr) are

2026-01-28T06:29:30+00:00March 31st, 2022|Industrial Articles|
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Duplex Stainless in Oil and Gas

Duplex Stainless in Oil and Gas The oil and gas industry remains by far the largest user of duplex stainless steels. Standards such as Norsok and NACE (Appendix 1) provide detailed instructions for the selection of materials. They range from carbon steels, stainless steels (martensitic, austenitic, duplex, super austenitic) to nickel-base alloys depending upon

2026-10-16T02:17:43+00:00November 30th, 2021|Industrial Articles|
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API oil pipe specification and non-standard specification

API oil pipe specification and non-standard specification API oil pipe specification system API Standard is a general term for specification (SPEC), recommended practice (RP) and notification (BUL). "Specification" To facilitate communication between purchasers and manufacturers, to provide interchangeability between the same equipment and materials purchased from different manufacturers and produced at different times; and

2026-10-16T02:17:36+00:00August 19th, 2021|Industrial Articles|
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What is the API standard for petroleum steel pipe?

What is the API standard for petroleum steel pipe? Petroleum steel pipe Petroleum pipe is the general name of oil-specific pipe (casing, oil pipe, drill pipe, square drill pipe, weighted drill pipe, drill collar, etc.) and pipeline pipe for oil and gas transmission, which runs through all aspects of oil drilling, well completion, oil

2026-10-16T02:17:35+00:00August 19th, 2021|Industrial Articles|
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How does heating the metal affects its properties?

How does heating the metal affects its properties? Heat can affect the electrical, magnetic, and structural properties of metals. Since metal has a wide range of uses, various conditions emphasize different attributes. Toughness is required in industrial applications, whereas low electrical density is significant in electronic applications. There are many methods of heating metal

2026-01-28T06:30:05+00:00June 17th, 2021|Industrial Articles|
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All you need to know about The Melting Points of Metals

All you need to know about The Melting Points of Metals Metals have prestige for being able to survive harsh environments. Heavy loads, continuous cycling, major intensity, caustic conditions, and even extreme temperatures are all factors to consider. Furnaces, diesel motors, piston engines, spark nozzles, high-speed machines, and exhaust systems are all exposed to

2026-01-28T06:30:05+00:00June 17th, 2021|Industrial Articles|
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