ASTM A887-89(2000)

Standard Specification for Borated Stainless Steel Plate, Sheet, and Strip for Nuclear Application

SCOPE
1.1 This specification covers chromium-nickel stainless steel plate, sheet, and strip, modified by the addition of natural or enriched boron, for nuclear application.
1.2 Borated stainless steels covered by this specification, because of their particular alloy content and specialized properties, may require special care in their fabrication and welding. Specific procedures are of fundamental importance, and it is presupposed that all parameters will be in accordance with approved methods capable of producing the desired properties in the finished fabrication.
1.3 The values stated in inch-pound units are to be regarded as the standard. SI units are provided for information only.

General Information

• Status: Historical
• Publication Date: 09-Mar-2000
• ICS: 77.140.50 - Flat steel products and semi-products
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.17 - Flat-Rolled and Wrought Stainless Steel

Relations

• Replaced By: ASTM A887-89(2004) - Standard Specification for Borated Stainless Steel Plate, Sheet, and Strip for Nuclear Application
• Effective Date: 01-Sep-2004

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 887 – 89 (Reapproved 2000)
Standard Specification for
Borated Stainless Steel Plate, Sheet, and Strip for Nuclear
Application
This standard is issued under the fixed designation A 887; 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 5. Process
5.1 If a specific type of melting is required by the purchaser,
1.1 This specification covers chromium-nickel stainless
steel plate, sheet, and strip, modified by the addition of natural it shall be stated on the purchase order.
or enriched boron, for nuclear application. 5.2 When specified on the purchase order, or when a
1.2 Borated stainless steels covered by this specification, specific type of melting has been specified on the purchase
because of their particular alloy content and specialized prop- order, the material manufacturer shall indicate on the test report
erties, may require special care in their fabrication and weld- the type of melting used to produce the material.
ing. Specific procedures are of fundamental importance, and it
6. Heat Treatment
is presupposed that all parameters will be in accordance with
approved methods capable of producing the desired properties 6.1 The austenitic chromium-nickel steels shall be solution-
annealed to meet the mechanical property requirements of this
in the finished fabrication.
1.3 The values stated in inch-pound units are to be regarded specification. Solution-annealing shall consist of heating the
material to a temperature of 1900°F (1040°C) minimum for an
as the standard. SI units are provided for information only.
appropriate time followed by water quenching or rapidly
2. Referenced Documents
cooling by other means.
2.1 ASTM Standards:
7. Material Test Report
A 370 Test Methods and Definitions for Mechanical Testing
7.1 A report of the results of all tests required by this
of Steel Products
A 480/A480M Specification for General Requirements for specification and the type of melting used shall be supplied to
the purchaser.
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
Sheet, and Strip
8. Chemical Composition
A 751 Test Methods, Practices, and Terminology for
8.1 The chemical analysis of representative material shall be
Chemical Analysis of Steel Products
performed, as agreed upon between the purchaser and supplier,
3. Terminology
to determine the percentages of the elements identified in Table
1. The chemical composition thus determined shall be reported
3.1 Definitions of Terms Specific to This Standard:
3.1.1 plate—material ⁄16 in. (4.8 mm) and over in thickness to the purchaser, or his representative, and shall conform to the
requirements specified in Table 1.
and over 10 in. (250 mm) in width.
3.1.2 sheet—material under ⁄16 in. (5.0 mm) in thickness 8.2 When a product (check or verification) analysis is
performed, the chemical composition thus determined may
and 24 in. (600 mm) and over in width.
3.1.3 strip—material under ⁄16 in. (5.0 mm) in thickness vary from the specified limits by the amounts shown in Table
1, Product Analysis Tolerances, of Specification A 480/
and under 24 in. (600 mm) in width.
A480M.
4. Ordering Information
8.3 Methods and practices relating to chemical analysis
4.1 Orders for material under this specification shall include required by this specification shall be in accordance with Test
the information specified in the Ordering Information section Methods, Practices, and Terminology A 751.
of Specification A 480/A 480M. 8.4 Boron determination not covered in Test Methods,
Practices, and Terminology A 751 shall be made as agreed
upon between the purchaser and the supplier.
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
9. Mechanical Properties
A01.17 on Flat Stainless Steel Product.
Current edition approved November 20, 1989. Published January 1990. Origi- 9.1 Tensile Properties—The material shall conform to the
nally published as A 887 – 88. Last previous edition A 887 – 88.
tensile property requirements specified in Table 2.
Annual Book of ASTM Standards, Vol 01.03.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A 887 – 89 (2000)
A
TABLE 1 Chemical Requirements Composition
UNS Type Carbon Manganese Phosphorous Sulfur Silicon Chromium Nickel Boron Other
B
Designation Elements
S30460 304B 0.08 2.00 0.045 0.030 0.75 18.00–20.00 12.00–15.00 0.20–0.29 N 0.10 max
S30461 304B1 0.08 2.00 0.045 0.030 0.75 18.00–20.00 12.00–15.00 0.30–0.49 N 0.10 max
S30462 304B2 0.08 2.00 0.045 0.030 0.75 18.00–20.00 12.00–15.00 0.50–0.74 N 0.10 max
S30463 304B3 0.08 2.00 0.045 0.030 0.75 18.00–20.00 12.00–15.00 0.75–0.99 N 0.10 max
S30464 304B4 0.08 2.00 0.045 0.030 0.75 18.00–20.00 12.00–15.00 1.00–1.24 N 0.10 max
S30465 304B5 0.08 2.00 0.045 0.030 0.75 18.00–20.00 12.00–15.00 1.25–1.49 N 0.10 max
S30466 304B6 0.08 2.00 0.045 0.030 0.75 18.00–20.00 12.00–15.00 1.50–1.74 N 0.10 max
S30467 304B7 0.08 2.00 0.045 0.030 0.75 18.00–20.00 12.00–15.00 1.75–2.25 N 0.10 max
A
Maximum, unless range or minimum is indicated.
B
Cobalt concentration shall be limited to 0.2 max, unless a lower concentration is agreed upon between the purchaser and the supplier.
TABLE 2 Mechanical Test Requirements
UNS Type Grade Tensile Strength, min Yield Strength, min Elongation in 2 Hardness, max
Designation in. or 50 mm,
ksi MPa ksi MPa Brinell Rockwell B
min, %
S30460 304B A 75 515 30 205 40.0 201 92
B 75 515 30 205 40.0 201 92
S30461 304B1 A 75 515 30 205 40.0 201 92
B 75 515 30 205 35.0 201 92
S30462 304B2 A 75 515 30 205 35.0 201 92
B 75 515 30 205 27.0 201 92
S30463 304B3 A 75 515 30 205 31.0 201 92
B 75 515 30 205 19.0 201 92
S30464 304B4 A 75 515 30 205 27.0 217 95
B 75 515 30 205 16.0 217 95
S30465 304B5 A 75 515 30 205 24.0 217 95
B 75 515 30 205 13.0 217 95
S30466 304B6 A 75 515 30 205 20.0 241 100
B 75 515 30 205 9.0 241 100
S30467 304B7 A 75 515 30 205 17.0 241 100
B 75 515 30 205 6.0 241 100
TABLE 3 Impact Test Requirements
9.2 Hardness—The material shall conform to the hardness
requirements as specified in Table 2.
Type Grade Charpy V-Notch Energy,
9.3 Grade—The grade of the material is defined by the
ft-lb (J), min
uniformity of the dispersion of the boron within the melt.
304B A 65 (88)
Grade A corresponds to the near-optimal dispersion, while
B 40 (54)
304B1 A 60 (81)
Grade B corresponds to a less-than-optimal dispersion of the
B 35 (47)
boron. Conventional wrought metallurgical practice conforms
304B2 A 48 (65)
to Grade B properties. The quality of the boron dispersion is
B 16 (22)
304B3 A 38 (52)
measured indirectly through the ductility requirements, as
B 10 (14)
specified in Table 2.
304B4 A 30 (41)
B .
10. Special Tests
304B5 A 23 (31)
B .
10.1 If any special tests are required which are pertinent to
304B6 A 16 (22)
the intended application of the material ordered, they shall be
B .
304B7 A 10 (14)
agreed upon between the supplier and the purchaser.
B .
10.2 Charpy V-notch impact testing is not required unless it
is specified on the purchase order. If so specified, impact
testing shall be performed in accordance with Test Methods
11. Dimensions and Permissible Variations
and Definitions A 370. The impact test results thus determined
shall be reported to the purchaser, or his representative, and 11.1 Unless otherwise specified in the purchase order, ma-
shall conform to the requirements
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