ASTM B834-22

Standard Specification for Pressure Consolidated Powder Nickel Alloy Pipe Flanges, Fittings, Valves, and Parts

ABSTRACT
This specification tackles standards for pressure consolidated powder metallurgy iron-nickel-chromium-molybdenum and nickel-chromium-molybdenum-columbium pipe flanges, fittings, valves, and parts intended for general corrosion or heat-resisting service. Compacts shall be manufactured by placing a single powder blend into a can, evacuating the can, and sealing it. The can material shall then be selected to ensure that it has no deleterious effect on the final product. The specimen shall be heated and placed under sufficient pressure for a sufficient period of time to ensure that the final consolidated part is fully dense. The powder shall be produced by vacuum melting followed by gas atomization. The heats shall be thoroughly mixed to ensure homogeneity when powder from more than one heat is used to make a blend. The material shall have the chemical compositions of carbon, manganese, silicon, phosphorus, sulfur, chromium, molybdenum, nickel, iron, cobalt, columbium, aluminum, titanium, nitrogen, and copper. Hydrostatic test shall be conducted and the specimen must show no leaks. The density test shall be performed using sample suspended from a scale and weighed in air and water using Archimede’s principle. Check Analysis shall be wholly the responsibility of the purchaser. The parts of the specimen shall be uniform in quality and condition, and shall be free from injurious imperfections.
SCOPE
1.1 This specification covers pressure consolidated powder metallurgy nickel alloy pipe flanges, fittings, valves, and parts intended for general corrosion or heat-resisting service.  
1.1.1 UNS N06625 products are furnished in two grades of different heat-treated conditions:
1.1.1.1 Grade 1 (annealed)—Material is normally employed in service temperatures up to 1100 °F (593 °C).
1.1.1.2 Grade 2 (solution annealed)—Material is normally employed in service temperatures above 1100 °F (593 °C) when resistance to creep and rupture is required.  
1.2 UNS N08367 products are furnished in the solution annealed condition.  
1.3 UNS N06600 products are furnished in the annealed condition.  
1.4 UNS N06690 products are furnished in the annealed condition.  
1.5 UNS N07718 products are furnished in the solution annealed + precipitation hardened condition.  
1.6 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.7 The following safety hazards caveat pertains only to test methods portions, Sections 7.3 and 13, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and to determine the applicability of regulatory limitations prior to use.  
1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Mar-2022
• ICS: 23.040.15 - Non-ferrous metal pipes
• Technical Committee: B02 - Nonferrous Metals and Alloys
• Drafting Committee: B02.07 - Refined Nickel and Cobalt and Their Alloys

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:B834 −22
Standard Specification for
Pressure Consolidated Powder Nickel Alloy Pipe Flanges,
1
Fittings, Valves, and Parts
This standard is issued under the fixed designation B834; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 1.8 This international standard was developed in accor-
dance with internationally recognized principles on standard-
1.1 This specification covers pressure consolidated powder
ization established in the Decision on Principles for the
metallurgy nickel alloy pipe flanges, fittings, valves, and parts
Development of International Standards, Guides and Recom-
intended for general corrosion or heat-resisting service.
mendations issued by the World Trade Organization Technical
1.1.1 UNS N06625 products are furnished in two grades of
Barriers to Trade (TBT) Committee.
different heat-treated conditions:
1.1.1.1 Grade1(annealed)—Materialisnormallyemployed
2. Referenced Documents
in service temperatures up to 1100°F (593°C).
2
2.1 ASTM Standards:
1.1.1.2 Grade 2 (solution annealed)—Material is normally
B899Terminology Relating to Non-ferrous Metals and Al-
employed in service temperatures above 1100°F (593°C)
loys
when resistance to creep and rupture is required.
E3Guide for Preparation of Metallographic Specimens
1.2 UNS N08367 products are furnished in the solution
E8/E8MTest Methods for Tension Testing of Metallic Ma-
annealed condition.
terials
1.3 UNS N06600 products are furnished in the annealed
E1473Test Methods for Chemical Analysis of Nickel, Co-
condition.
balt and High-Temperature Alloys
G28Test Methods for Detecting Susceptibility to Inter-
1.4 UNS N06690 products are furnished in the annealed
granular Corrosion in Wrought, Nickel-Rich, Chromium-
condition.
Bearing Alloys
1.5 UNS N07718 products are furnished in the solution
G48Test Methods for Pitting and Crevice Corrosion Resis-
annealed + precipitation hardened condition.
tance of Stainless Steels and Related Alloys by Use of
Ferric Chloride Solution
1.6 Thevaluesstatedininch-poundunitsaretoberegarded
as standard. The values given in parentheses are mathematical
2.2 Manufacturer’s Standardization Society of the Valve and
3
conversions to SI units that are provided for information only
Fittings Industry Standard:
and are not considered standard.
SP-25 Standard Marking System for Valves, Fittings,
Flanges, and Unions
1.7 Thefollowingsafetyhazardscaveatpertainsonlytotest
4
methods portions, Sections 7.3 and 13, of this specification:
2.3 ASME/ANSI Standard:
This standard does not purport to address all of the safety
ASME/ANSI B16.5Pipe Flanges and Flanged Fittings
concerns, if any, associated with its use. It is the responsibility
ASME Boiler and Pressure Vessel Code
of the user of this standard to become familiar with all hazards
Section I
including those identified in the appropriate Safety Data Sheet
Section III
(SDS) for this product/material as provided by the
Section IV
manufacturer, to establish appropriate safety, health, and
environmental practices, and to determine the applicability of
regulatory limitations prior to use.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
1 3
This specification is under the jurisdiction of ASTM Committee B02 on AvailablefromManufacturersStandardizationSocietyoftheValveandFittings
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http://www.mss-
B02.07 on Refined Nickel and Cobalt and Their Alloys. hq.com.
4
Current edition approved April 1, 2022. Published April 2022. Originally Available from American Society of Mechanical Engineers (ASME), ASME
approved in 1993. Last previous edition approved in 2017 as B834–17. DOI: International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
10.1520/B0834-22. www.asme.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B834−22
Section VIII 5.1.4 Powder shall be protected during storage to prevent
Section XII the detrimental pick-up of oxygen and other contaminants.
ASME B31.1Power Piping
5.2 He
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B834 − 17 B834 − 22
Standard Specification for
Pressure Consolidated Powder Metallurgy Iron-Nickel-
Chromium-Molybdenum (UNS N08367), Nickel-Chromium-
Molybdenum-Columbium (Nb) (UNS N06625), Nickel-
Chromium-Iron Alloys (UNS N06600 and N06690), and
Nickel-Chromium-Iron-Columbium-Molybdenum (UNS
N07718) Nickel Alloy Pipe Flanges, Fittings, Valves, and
1
Parts
This standard is issued under the fixed designation B834; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This specification covers pressure consolidated powder metallurgy iron-nickel-chromium-molybdenum (UNS N08367) and
nickel-chromium-molybdenumcolumbium (Nb) (UNS N06625), nickel-chromium-iron alloys (UNS N06600 and N06690), and
nickel-chromium-iron-columbium (Nb)-molybdenum (UNS N07718) nickel alloy pipe flanges, fittings, valves, and parts intended
for general corrosion or heat-resisting service.
1.1.1 UNS N06625 products are furnished in two grades of different heat-treated conditions:
1.1.1.1 Grade 1 (annealed)—Material is normally employed in service temperatures up to 1100°F (593°C).1100 °F (593 °C).
1.1.1.2 Grade 2 (solution annealed)—Material is normally employed in service temperatures above 1100°F (593°C)1100 °F
(593 °C) when resistance to creep and rupture is required.
1.2 UNS N08367 products are furnished in the solution annealed condition.
1.3 UNS N06600 products are furnished in the annealed condition.
1.4 UNS N06690 products are furnished in the annealed condition.
1.5 UNS N07718 products are furnished in the solution annealed + precipitation hardened condition.
1.6 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1
This specification is under the jurisdiction of ASTM Committee B02 on Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee B02.07 on Refined
Nickel and Cobalt and Their Alloys.
Current edition approved Nov. 1, 2017April 1, 2022. Published November 2017April 2022. Originally approved in 1993. Last previous edition approved in 20152017 as
B834 – 15.B834 – 17. DOI: 10.1520/B0834-17.10.1520/B0834-22.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B834 − 22
1.7 The following safety hazards caveat pertains only to test methods portions, Sections 7.3 and 13, of this specification: This
standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user
of this standard to become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this
product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and to
determine the applicability of regulatory limitations prior to use.
1.8 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
B899 Terminology Relating to Non-ferrous Metals and Alloys
E3 Guide for Preparation of Metallographic Specimens
E8/E8M Test Methods for Tension Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E1473 Test Methods for Chemical Analysis of Nickel, Cobalt and High-Temperature Alloys
G28 Test Methods for Detecting Susceptibility to Intergranular Corrosion in Wrought, Nickel-Rich, Chromium-Bearing Alloys
G48 Test Methods for Pitting and Crevice Corrosion Resistance of Stainless Steels and Related Alloys by Use of Ferric Chloride
Solution
3
2.2 Manufacturer’s Standardization Society of the Valve and Fittings Industry Standard:
SP-25 Standard Marking System for Valves, Fittings, Flanges, and Unions
4
2.3 ASME/ANSI Standard:
ASME/ANSI B16.5 Pipe Flanges and Flanged Fittings
ASME Boiler a
...