Seamless steel pipes

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日期：二月 07, 2025

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Seamless steel pipes

precision seamless pipe

CDS is popular in the hydraulics, being used to make hollowed chrome plated telescopic cylinders and hydraulic rods. It is also popular for large bore, heavy walled, high pressure hydraulic cylinders. Cold Drawn Seamless tubes also find uses in heavy equipment manufacturing such as cranes and garbage trucks. Due to the characteristics of high-precision, in precision machinery manufacturing, auto parts, hydraulic cylinders, construction (steel sleeve) industry has a very wide range of applications. General process of cold drawing A considerable proportion of the seamless tubes and pipes manufactured through the cold roll piercing technology undergo subsequent cold forming. The principal reasons behind cold drawing are: Achievement of closer wall thickness and diameter tolerance Improvement in surface finish To enhance serviceability No premature failure Suitable for critical forming Such as 180˚ Bends Enhancement of mechanical properties of the tube Expansion of product mix towards the ...

PMI test for 316 stainless

A PMI (Positive Material Identification) test for 316 stainless steel is used to confirm the material's composition by detecting its elemental makeup. The test typically involves using handheld X-ray fluorescence (XRF) or optical emission spectroscopy (OES) devices to identify key elements such as chromium (16-18%), nickel (10-14%), and molybdenum (2-3%). These elements define 316 stainless steel's corrosion resistance and strength. The PMI test ensures that the material meets the required specifications, which is crucial for quality control in industries like chemical processing and marine applications.

PMI test for 15CrMoG

For 15CrMoG, which is a high-quality alloy steel used in high-temperature environments like power plant boilers, PMI testing is essential to confirm its composition and properties. PMI Testing Procedure for 15CrMoG: Preparation: Clean the test surface to remove any contaminants, coatings, or dirt that could interfere with the analysis. Ensure the testing equipment is calibrated and in good working condition. Equipment: Use a portable X-ray fluorescence (XRF) analyzer or an Optical Emission Spectrometer (OES). These devices are designed for on-site material identification and can quickly analyze the elemental composition. Testing: Position the XRF analyzer or OES probe against the surface of the 15CrMoG steel. Activate the device to emit X-rays or an electrical discharge that excites the atoms in the material. The device detects the characteristic X-rays or light emitted by the excited atoms and determines the material's elemental composition. Analysis: Compare the detected element...

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Seamless steel pipes

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JM7

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