ASTM Standards::} 70 Test Methods and Definitions for Mechanical Testing of Steel Products. 3. Terminology. Definitions—For definitions of terms used. Chemical and mechanical properties of ASTM A duplex and super-duplex pipe materials. What is duplex steel, use cases, corrosion resistance vs. SS. ASTM A/AM: Standard Specification for Seamless and Welded Ferritic/ Austenitic Stainless Steel Pipe.

Author: Kikazahn Zulkiktilar
Country: Nigeria
Language: English (Spanish)
Genre: Science
Published (Last): 1 February 2005
Pages: 388
PDF File Size: 8.47 Mb
ePub File Size: 11.92 Mb
ISBN: 452-8-17626-721-1
Downloads: 31088
Price: Free* [*Free Regsitration Required]
Uploader: Faektilar

These pipes may be repaired per Sections 12 and Duplex Steel Products: This applies only to pipe over NPS 8. Duplex Steel and Pipe. Link to Active This link will always route to the current Active version of the standard.

The test system settings may be changed or the transducer scoil sor sensor s adjusted and the unit restandardized. The inch-pound units shall apply unless the M designation of this specification is specified in the order. The pipe may be accepted based on visual examination, provided the imperfection is less than 0. But all pipe tested atsm the last acceptable standardization must be retested for acceptance.

It is informational only and not an official part of asstm standard; the full text of the standard itself must be referred to for its use and application. To be accepted, retested pipe shall meet the test requirement. Our products go through appropriate testing, both in Government and private laboratories.


Combining values from the two systems may result in non-conformance with the standard.

ASTM A790 Standard for Duplex Stainless Steel Pipe

Work Item s – proposed revisions of this standard. 7a90 steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures. Extended elevated temperature exposure can embrittle stainless.

Duplex Steel Flangesand Grades. This resistance ast, extremely important for services such as marine environments, brackish water, bleaching operations, closed loop water systems and some food processing applications. Mechanical Tests Required The inch-pound units shall apply unless the M designation of this specication is specied in the order.

Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification.

– Buy and Sell Project Materials

NOTE 2—This value applies when the inch-pound designation of this specication is the basis of purchase. Transverse Tension Tests S2. Workmanship, Finish, and Appearance Crops ends may be used. Within the text, the SI units are shown in brackets.

A rejection rate of less than one percent has consolidated the claim. High corrosion and erosion resistance is a must for storage tanks, whether the designer wants to prevent leakage during desalinization, avoid contamination in pharmaceutical or food processing, or store chips as well as black and white a7990 for the pulp and paper industry. NOTE 1—The dimensionless designator NPS nominal pipe size has been substituted in this standard for such traditional terms as nominal diameter, size, and nominal size.


ASTM does not give any warranty express or implied or make any representation that the contents of sstm abstract are accurate, complete or up to date.

ASTM A790 Seamless and Welded Pipe

Combining values from the two systems may result in nonconformance with the specification. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, wstm entirely their own responsibility. Increasing temperatures also increase the susceptibility of stainless steels to stress corrosion cracking.

The purchaser may specify a different frequency of test or analysis than is provided in the supplementary requirement. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Subject to agreement between the purchaser and manufacturer, retest and retreatment provisions of these supplementary requirements may also be modied. This abstract is a brief summary of the referenced standard.