ASTM A872-91(1997)

Standard Specification for Centrifugally Cast Ferritic/Austenitic Stainless Steel Pipe for Corrosive Environments

SCOPE
1.1 This specification covers centrifugally cast ferritic/ austenitic steel pipe intended for general corrosive service. These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures.  
1.2 Optional supplementary requirements are provided when additional testing may be required.  
1.3 The values stated in inch-pound units are to be regarded as the standard.

General Information

• Status: Historical
• Publication Date: 14-Jul-1991
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.18 - Castings

Relations

• Replaced By: ASTM A872-91(2002) - Standard Specification for Centrifugally Cast Ferritic/Austenitic Stainless Steel Pipe for Corrosive Environments
• Effective Date: 15-Jul-1991

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NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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: A 872 – 91 (Reapproved 1997) An American National Standard
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Specification for
Centrifugally Cast Ferritic/Austenitic Stainless Steel Pipe for
Corrosive Environments
This standard is issued under the fixed designation A 872; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope Section IX Welding Qualifications
2.3 ASTM Adjuncts:
1.1 This specification covers centrifugally cast ferritic/
Adjunct E 186Reference Radiographs—Transparencies in
austenitic steel pipe intended for general corrosive service.
Ringbinders, 3 Volumes
These steels are susceptible to embrittlement if used for
Adjunct E 280 Reference Radiographs—Transparencies in
prolonged periods at elevated temperatures.
Ringbinders, 3 Volumes
1.2 Optional supplementary requirements are provided
Adjunct E 446 Reference Radiographs—Transparencies in
when additional testing may be required.
Ringbinders, 3 Volumes
1.3 The values stated in inch-pound units are to be regarded
as the standard.
3. Ordering Information
2. Referenced Documents 3.1 Orders for material to this specification shall include the
following, as required, to describe the desired material ad-
2.1 ASTM Standards:
equately.
A 370 Test Methods and Definitions for Mechanical Testing
3.1.1 Quantity (feet (metres) or number of lengths),
of Steel Products
3.1.2 Name of material (centrifugally cast ferritic/
A 488 Practice for Steel Castings, Welding, Qualification of
austenitic steel pipe),
Procedures and Personnel
3.1.3 Grade (Table 1),
A 530/A530M Specification for General Requirements for
3.1.4 Size (outside or inside diameter and minimum wall
Specialized Carbon and Alloy Steel Pipe
thickness in inches (millimetres),
E 29 Practice for Using Significant Digits in Test Data to
3.1.5 Length (specific or random, Specification A 530/
Determine Conformance with Specifications
A 530M),
E 94 Guide for Radiographic Testing
3.1.6 End finish of Specification A 530/A 530M,
E 165 Test Method for Liquid Penetrant Examination
3.1.7 Optional Requirements (S1 through S6),
E 186 Reference Radiographs for Heavy Walled (2 to 4½-
3.1.8 Test report required (Section 12), and
in. (51 to 114-mm)) Steel Castings
3.1.9 Special requirements or additions to the specification.
E 280 Reference Radiographs for Heavy Walled (4½ to
12-in. (114 to 305-mm)) Steel Castings
4. General Requirements
E 340 Test Method for Macroetching Metals and Alloys
4.1 Material furnished under this specification shall con-
E 426 Practice for Electromagnetic (Eddy-Current) Testing
form to the applicable requirements of the current edition of
of Seamless and Welded Tubular Products, Austenitic
6 Specification A 530/A 530M, unless otherwise provided
Stainless Steel and Similar Alloys
herein.
E 446 Reference Radiographs for Steel Castings up to 2 in.
(51 mm) in Thickness
5. Materials and Manufacture
2.2 ASME Boiler and Pressure Vessel Code:
5.1 Manufacture:
5.1.1 The pipe shall be made by the centrifugal casting
process.
This specification is under the jurisdiction of ASTM Committee A-1 on Steel,
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
A01.18 on Castings.
Current edition approved July 15, 1991. Published September 1991. Originally Available from American Society of Mechanical Engineers, 345 E. 47th St.,
published as A 872 – 77. Last previous edition A 872 – 87. New York, NY 10017.
2 9
Annual Book of ASTM Standards, Vol 01.03. Available from ASTM Headquarters. Request PCN: 17-501861-22 for Vol I,
Annual Book of ASTM Standards, Vol 01.02. 17-501862-22 for Vol II, and 17-501863-22 for Vol III.
4 10
Annual Book of ASTM Standards, Vol 01.01. Available from ASTM Headquarters. Request PCN: 17-502801-22 for Vol I,
Annual Book of ASTM Standards, Vol 14.02. 17-502802-22 for Vol II, 17-502803-22 for Vol III.
6 11
Annual Book of ASTM Standards, Vol 03.03. Available from ASTM Headquarters. Request PCN: 17-504461-22 for Vol I,
Annual Book of ASTM Standards, Vol 03.01. 17-504462-22 for Vol II, and 17-504463-22 for Vol III.
A 872
TABLE 1 Chemical Requirements TABLE 3 Tensile and Hardness Requirements
UNS No. UNS No.
Element Requirement
J93183 J93550 J93183 J93550
C 0.030 max 0.030 max Tensile strength, min, ksi (MPa) 90 [620] 90 [620]
Mn 2.0 max 2.0 max Yield strength, min, ksi (MPa) 65 [450] 65 [450]
P 0.040 max 0.040 max Elongation in 2 in. or 50 mm, min, 25 20
S 0.030 max 0.030 max %
Si 2.0 max 2.0 max Hardness, max:
Ni 4.00–6.00 5.00–8.00 Brinell 290 297
Cr 20.0–23.0 23.0–26.0 Rockwell C 30.5 31.5
Mo 2.00–4.00 2.00–4.00
N 0.08–0.25 0.08–0.25
7.4 Retests—If the results of the mechanical test for any
Cu 1.00 max 1.00 max
heat do not conform to the requirements specified, the casting
Co 0.50–1.50 0.50–1.50
may be reheat treated and retested, but this may not be solution
treated more than twice.
5.1.2 All pipes shall be furnished in the heat-treated condi-
8. Quality
tion as shown in Table 2.
5.1.3 Machining—The pipe shall be machined on the inner 8.1 The surface of the casting shall be examined visually
surface and may be supplied either machined or unmachined in and shall be free of cracks and hot tears. Other surface defects
the outer surface. All machining shall be to a roughness value shall be judged in accordance with visual acceptance criteria
agreed upon between the manufacturer and purchaser. that may be specified in the order.
9. Rework and Retreatment
6. Chemical Composition
9.1 Defects as defined in Section9 shall be removed and
6.1 Heat Analysis—An analysis of each heat shall be made
their removal verified by visual inspection of the resultant
by the manufacturer to determine the percentages of elements
cavities. Defects that are located by inspection using Supple-
specified in Table 1. The analysis shall be made on a test
mentary Requirement S4, S5, or S6 shall be removed or
sample taken preferably during the pouring of the heat. The
reduced to an acceptable size.
chemical composition thus determined shall conform to the
9.2 If removal of the defect does not infringe upon the
requirements specified in Table 1.
minimum wall thickness, the depression shall be blended
6.2 Product Analysis—A product analysis may be made by
uniformly into the surrounding surface.
the purchaser. The sample for analysis shall be selected so as to
9.3 If
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