ASTM A691/A691M-09(2014)

Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures

ABSTRACT
This specification covers carbon and alloy steel pipe, electric-fusion-welded with filler metal added, fabricated from pressure-vessel-quality plate of several analyses and strength levels and suitable for high-pressure service at high temperatures. Heat treatment may or may not be required to attain the desired mechanical properties. The pipes are classified according to steel grades and are designated in classes according to the type of heat treatment performed in the pipe manufacture, whether the weld is radiographically examined, and whether the pipe has been pressure tested. The steel welds shall be made either manually or automatically by an electric process involving the deposition of filler metal. The welded joints shall have positive reinforcement at the center of each side of the weld. The contour of this reinforcement shall be smooth, and the deposited metal shall be fused smoothly and uniformly into the plate surface. The joints shall undergo tension, bend and pressure tests. Unacceptable surface imperfections shall be removed by grinding or machining. The depression after grinding or machining shall be blended uniformly into the surrounding surface. Repair of weld and base metal defects shall be done by welding.
SCOPE
1.1 This specification2 covers carbon and alloy steel pipe, electric-fusion-welded with filler metal added, fabricated from pressure-vessel-quality plate of several analyses and strength levels and suitable for high-pressure service at high temperatures. Heat treatment may or may not be required to attain the desired mechanical properties or to comply with applicable code requirements. Supplementary requirements are provided for use when additional testing or examination is desired.  
1.2 The specification nominally covers pipe 16 in. [400 mm] in outside diameter and larger with wall thicknesses up to 3 in. [75 mm] inclusive. Pipe having other dimensions may be furnished provided it complies with all other requirements of this specification.  
1.3 Several grades and classes of pipe are provided.  
1.3.1 Grade designates the type of plate used as listed in Table 1.  
1.3.2 Class designates the type of heat treatment performed in the manufacture of the pipe, whether the weld is radiographically examined, and whether the pipe has been pressure tested as listed in 1.3.3.  
1.3.3 Class designations are as follows (Note 1):Note 1—Selection of materials should be made with attention to temperature of service. For such guidance, Specification A20/A20M may be consulted.  
1.4 Optional requirements of a supplementary nature are provided, calling for additional tests and control of repair welding, when desired.  
1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.

General Information

• Status: Historical
• Publication Date: 28-Feb-2014
• ICS: 23.040.10 - Iron and steel pipes
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.09 - Carbon Steel Tubular Products

Relations

• Replaces: ASTM A691/A691M-09e1 - Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures
• Effective Date: 01-Mar-2014
• Replaced By: ASTM A691/A691M-18 - Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures
• Effective Date: 01-Mar-2018
• Referred By: ASTM A530/A530M-18 - Standard Specification for General Requirements for Specialized Carbon and Alloy Steel Pipe
• Effective Date: 01-Mar-2014

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:A691/A691M −09 (Reapproved 2014)
Standard Specification for
Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for
1
High-Pressure Service at High Temperatures
This standard is issued under the fixed designationA691/A691M; 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
Radiography, Pressure Test,
Class Heat Treatment on Pipe see Section see Section
2
1.1 This specification covers carbon and alloy steel pipe,
electric-fusion-welded with filler metal added, fabricated from 10 none none none
11 none 9 none
pressure-vessel-quality plate of several analyses and strength
12 none 98.3
levels and suitable for high-pressure service at high tempera-
13 none none 8.3
20 stress relieved, see 5.3.1 none none
tures. Heat treatment may or may not be required to attain the
21 stress relieved, see 5.3.1 9 none
desired mechanical properties or to comply with applicable
22 stress relieved, see 5.3.1 9 8.3
code requirements. Supplementary requirements are provided
23 stress relieved, see 5.3.1 none 8.3
30 normalized, see 5.3.2 none none
for use when additional testing or examination is desired.
31 normalized, see 5.3.2 9 none
1.2 The specification nominally covers pipe 16 in. [400 32 normalized, see 5.3.2 9 8.3
33 normalized, see 5.3.2 none 8.3
mm]inoutsidediameterandlargerwithwallthicknessesupto
40 normalized and tempered, see 5.3.3 none none
3 in. [75 mm] inclusive. Pipe having other dimensions may be
41 normalized and tempered, see 5.3.3 9 none
furnished provided it complies with all other requirements of 42 normalized and tempered, see 5.3.3 9 8.3
43 normalized and tempered, see 5.3.3 none 8.3
this specification.
50 quenched and tempered, see 5.3.4 none none
51 quenched and tempered, see 5.3.4 9 none
1.3 Several grades and classes of pipe are provided.
52 quenched and tempered, see 5.3.4 9 8.3
1.3.1 Grade designates the type of plate used as listed in
53 quenched and tempered, see 5.3.4 none 8.3
Table 1.
NOTE 1—Selection of materials should be made with attention to
1.3.2 Class designates the type of heat treatment performed
temperature of service. For such guidance, Specification A20/A20M may
in the manufacture of the pipe, whether the weld is radio-
be consulted.
graphically examined, and whether the pipe has been pressure
1.4 Optional requirements of a supplementary nature are
tested as listed in 1.3.3.
provided, calling for additional tests and control of repair
1.3.3 Class designations are as follows (Note 1):
welding, when desired.
1.5 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. Within the text, the
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
SI units are shown in brackets. The values stated in each
Stainless Steel and RelatedAlloysand is the direct responsibility of Subcommittee
system may not be exact equivalents; therefore, each system
A01.09 on Carbon Steel Tubular Products.
Current edition approved March 1, 2014. Published April 2014. Originally
shall be used independently of the other. Combining values
ε1
approved in 1974. Last previous edition approved in 2009 as A691/A691M–09
from the two systems may result in non-conformance with the
DOI: 10.1520/A0691_A0691M-09R14.
2
standard. The inch-pound units shall apply unless the “M”
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
cation SA-691 in Section II of that Code. designation of this specification is specified in the order.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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A691/A691M−09 (2014)
TABLE 1 Plate Materials
A
ASTM Specification HB, max
Pipe Grade Type of Steel
Number Grade
CM-65 carbon-molybdenum steel A204/A204M A 201
CM-70 carbon-molybdenum steel A204/A204M B 201
CM-75 carbon-molybdenum steel A204/A204M C 201
CMSH-70 carbon-manganese-silicon steel, normalized A537/A537M 1
CMS-75 carbon-manganese-silicon steel A299/A299M . .
CMSH-80 carbon-manganese-silicon steel, quenched and tempered A537/A537M 2
1 1 1
⁄2 CR ⁄2 % chromium, ⁄2 % molybdenum steel A387/A387M 2 201
1
1CR 1 % chromium, ⁄2 % molybdenum steel A387/A387M 12 201
1 1 1
1 ⁄4 CR 1 ⁄4 % chromium, ⁄2 % molybdenum steel A387/A387M 11 201
1 1
2 ⁄4 CR 2 ⁄4 % chromium, 1 % molybdenum steel A387/A387M 22 201
3CR 3 % chromium, 1 % molybdenum steel A387/A387M 21 201
1
5CR 5 % chromium, ⁄2 % molybdenum steel A387/A387M 5 225
9CR 9 % chromium, 1 % molybdenum steel A387/A387M 9 241
91 9 % chromium, 1 % molybdenum, vanadium, columbium A387/A3
...