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ASTM A312 316/316L Stainless Steel seamless pipe with Annealed & Pickled Surface

Material: 316L, 1.4401, 1.4404, 1.4435;

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ASTM A312 316/316L Stainless Steel seamless pipe with Annealed & Pickled Surface,

ASTM A312 316/316L Stainless Steel seamless pipe with Annealed & Pickled Surface

316L Stainless Steel Seamless Pipe plays a key role in several fields. In the chemical industry, it is widely used in the manufacture of chemical processing equipment, piping and vessels that resist a variety of corrosive media, such as acids, alkalis and salts. In offshore engineering, the tubes resist the corrosive and chlorinated effects of seawater and are used in ships, seawater treatment plants and offshore platforms. Applications in the medical field cover the manufacture of medical equipment and instruments and are commonly used for surgical instruments, artificial joints and medical piping due to their corrosion resistance, cleanliness and biocompatibility. The pipes also maintain a high degree of stability and reliability in high temperature and high pressure environments, such as chemical processing and nuclear power plants.

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Chemical Composition:


MaterialChemical Composition % Max ASTM A312
CMnPSSiCrNiMoTi
TP3040.0820.0450.03118.0-20.08.0-11.0--
TP304L0.03520.0450.03118.0-20.08.0-13.0--
TP3160.0820.0450.03116.0-18.011.0-14.02.00-3.00-
TP316L0.03520.0450.03116.0-18.010.0-14.02.00-3.00-
TP3210.0820.0450.03117.0-19.09.0-12.0-5C -0.70
TP3470.0820.0450.03117.0-19.09.0-13.0--


Physical Property:


Steel gradePhysical Property
Y.ST.SEL.HRB
304≥205≥515-1035≥40≤92
304L≥205≥520≥40≤90
316≥620≥310≥30≤95
316L≥480≥177≥40≤90
321≥205≥515≥40≤95
347≥205≥515≥40≤92


Production process:


The surface pickling process of stainless steel pipe includes treating the surface with an acidic solution such as sulfuric acid or hydrochloric acid to remove impurities such as oxides, oil slag, and weld scales. This method cleans the surface, eliminates the oxidized layer, and makes the stainless steel surface cleaner and smoother. This treatment enhances the corrosion resistance of the pipe, making it more suitable for a variety of applications such as the chemical industry and petroleum. The surface of the stainless steel pipe is usually shinier after pickling, which improves the quality and appearance of the stainless steel pipe.


Quality Control of MTSCO Seamless Pipe:


1.Raw material quality assurance

Our raw materials come from reputable mills such as Baosteel and Qingshan, and undergo warranty and PMI checks to ensure quality. Strict PMI and other checks ensure that the material meets specifications.

2.Production Process Monitoring

Our seamless steel pipe production includes cold rolling, cold drawing, annealing, pickling and surface treatment. State-of-the-art equipment and skilled engineers supervise each stage and keep detailed records by taking photographs. Process cards ensure accuracy and traceability throughout the production process.

3.Pre-shipment Quality Assurance

Our professional quality control team carries out comprehensive inspections, including appearance, PMI, dimensions and quantity. We also conduct mechanical, hardness, ultrasonic, eddy current and hydraulic tests. We also accept third-party assessments (SGS, TUV, BV) and use secure packaging and container reinforcement to keep goods safe during transportation.


Package:


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VIP SERVICE

VR (Virtual) Mill Introduction

Professional Remote Technical Guidanceion

Accept Third-party Inspection

Door to Door Shipment

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