ASTM B622 PDF

Historical Version s - view previous versions of standard. More B This specification covers seamless pipe and tube of nickel and nickel-cobalt alloys. These alloys are classified into different grades according to chemical composition. Mechanical properties of the material like tensile strength, yield strength, and elongation shall be measured.

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Hastelloy B2 Seamless Pipe and Tube. These alloys are classified into different grades according to chemical composition. ASTM B Seamless Pipes and Tubes do not have a weld or seam on them and hence are more structurally uniform and has similar strength properties all over the body. Thus Seamless pipes or tubes can withstand higher amounts of mechanical stress, pressure, higher temperature and resist wide range of corrosive environments. These steel bars are introduced to different types of rolling mills, where these bars are rolled into a uniform round shaped solid billet.

These solid round billets are later heated and then pushed or pulled over piercing rods thereby producing a hollow tube or pipe or shell. Due to the heating during production of seamless pipes or tubes, they are then cooled to form a consistent steel pattern which is uniform throughout its length.

Seamless Pipes and tubes shall be supplied in the solution annealed and descaled condition. Descaling is not necessary if atmosphere control is used. Mechanical properties of the material like tensile strength, yield strength, and elongation shall be measured.

ASTM B Seamless Pipes and Tubes are exclusively used in nuclear device, petrochemical industries, boilers, ship building and gas industries. They are also extensively applicable in conditions where high-pressure resistance is required, like Gas explorations rigs, Oil refineries, hydrocarbon industries, drilling, oil and gas transportations, automobiles, hydraulic cylinders, bearing boilers.

Seamless Nickel and Nickel-Cobalt Alloy Pipes and Tubes are manufactured to sustain very high pressure and product warranty. The main reason being we have an excellent warehousing and storage facility for both finished and semi finished goods. They are made ready as per the requirements of the customers. We have a large inventory of Hastelloy C22 and Hastelloy C Siddhagiri Metals and Tubes have large and exclusive inventory supports our clients' needs at immediate basis.

We at Siddhagiri Metals and Tubes can provide pipes and tubes with a have a huge stock of various size and diameters of pipes and tubes for any kind of industrial projects and needs. During this process, the tube should not exhibit any cracking through walls. Grain Size: - An n extended transverse sample exhibiting complete wall thickness of annealed alloys shall adhere to the average grain size as specified in ASTM B specification. Hardness: - In stress-relived conditions when annealed ends are specified for tubing, the hardness of the ends should not cross the limits as specified in ASTM B Hydrostatic or Nondestructive Electric Test: - Every tube should be put through either hydrostatic test or nondestructive electric test.

Fiber stress calculated using this formula should not exceed the specification limits. Tension test- The tubes in the final condition temper of production are taken as specimen for tension test, and are tested in the direction of fabrication.

Tubes are tested in full tubular size or longitudinal strip with reduced gage lengths. The tension test should be performed on stress-relived tubes prior to annealing the ends. Hardness test- The hardness test is performed on the inside of the tube near the end or on the specimen cut from the end. ASTM B Seamless Tubings are individually covered so that the premium quality of material is retained and there are no damages in the last stages of production.

The Tubings should be uniform in quality and temper, commercially straight, smooth and free of any imperfections.

Inspection: - The tubes should be inspected as agreed upon by the purchaser and the manufacturer. Rejection and Rehearing: - The tube not adhering to the ASTM B specification or to authorized modifications should be subjected to rejection.

The rejected specimens should be preserved for not less than 3 weeks from test report, and the manufacturer may claim for rehearing within that stipulated time period. If it is mentioned in purchase order or the contract, then the manufacturer should be able to produce a certificate stating that the material has been manufactured and tested and inspected again with respect to the specification.

It should also note the test results of the specimen samples which meets the specification requirements, and should be displayed as and when required. ASTM B Seamless Tubes are tagged along with the imprints relevant to the job information which also contains information about the delivering destination like heat number, size, material, and part number.

Offer on Fasteners Sitemap. Home Exotic Materials. Get Quote. Specimen Preparation: - Tension test- The tubes in the final condition temper of production are taken as specimen for tension test, and are tested in the direction of fabrication. Workman Ship, Finish and Appearance: - ASTM B Seamless Tubings are individually covered so that the premium quality of material is retained and there are no damages in the last stages of production.

Certification: - If it is mentioned in purchase order or the contract, then the manufacturer should be able to produce a certificate stating that the material has been manufactured and tested and inspected again with respect to the specification. Product Marking:- ASTM B Seamless Tubes are tagged along with the imprints relevant to the job information which also contains information about the delivering destination like heat number, size, material, and part number.

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